Issue

## The identities of some subspecies, forms and individual specimens in museums previously classified as Melitaea phoebe ([Denis & Schiffermüller], 1775) (Lepidoptera: Nymphalidae)

### Sobre la identidad de otros taxones previamente asociados con Melitaea phoebe ([Denis & Schiffermüller], 1775) (Lepidoptera: Nymphalidae)

Peter J. C. Russell peterjcrussell82@yahoo.co.uk
freelance author, REINO UNIDO
Antonio Vives Moreno avives1954@outlook.es
Universidad Politécnica de Madrid, ESPAÑA

Abstract : The identities of further taxa associated previously with Melitaea phoebe: pseudosibina Alberti, 1969, allophylus Rütimeyer, 1942 and rubialesi Gómez Bustillo, 1973 are identified as M. phoebe, and M. ornata, respectively. Further specimens from the Gómez Bustillo collection housed in the Universidad Politécnica, E. T. S. Ingeniería de Montes, Forestal y del Medio Natural, Unidad de Entomología y Zoología, Madrid, Spain (UPM) and from the entomological reference collection of M. phoebe housed in the Museo Nacional de Ciencias Naturales, Madrid, Spain (MNCN), Universidad Autónoma de Madrid, Facultad de Ciencias, Departmento de Biología, Madrid, Spain (UAM) are reclassified as M. ornata. The distribution of M. ornata has been expanded to include locations in the Spanish Provinces of Cuenca, Guadalajara, Madrid, Palencia, Toledo, and Zaragoza.

Keywords: Lepidoptera, Nymphalidae, Melitaea phoebe , Melitaea ornata , Europe.

Resumen : Las identidades de otros taxones asociados previamente con Melitaea phoebe: pseudosibina Alberti, 1969, allophylus Rütimeyer, 1942 y rubialesi Gómez Bustillo, 1973 se identifican como M. phoebe y M. ornata, respectivamente. Otros especímenes de la colección Gómez Bustillo conservada en la Universidad Politécnica, E. T. S. Ingeniería de Montes, Forestal y del Medio Natural, Unidad de Entomología y Zoología, Madrid, España (UPM) y de la colección entomológica de referencia de M. phoebe conservada en el Museo Nacional de Ciencias Naturales, Madrid, España (MNCN), Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Biología, Madrid, España (UAM) se reclasifican como M. ornata. La distribución de M. ornata se ha ampliado para incluir localidades de las provincias españolas de Cuenca, Guadalajara, Madrid, Palencia y Zaragoza.

Palabras clave: Lepidoptera, Nymphalidae, Melitaea phoebe , Melitaea ornata , Europa.

### Introduction

Russell & Tennent (2016) allocated a number of taxa associated with Melitaea phoebe ([Denis & Schiffermüller], 1775) to their presumed correct species, recognizing the three species: M. phoebe [Type Locality (TL): environs of Vienna, Austria], M. ornata Christoph, 1893 [TL: Circa “Guberli”, promontorium uralensium australium (Guberlya, Orenburg Province, Russian Federation)] and M. punica Oberthür, 1876 [TL: Tazoult-Lambèze (Lambessa), Algeria]. Further, Russell et al. (2020) sorted out some syntypic series of western European taxa supposedly of M. phoebe, some of which contained two different species, and designated lectotypes, type localities and synonymising some names where necessary; this was continued by Russell et al. (2022) with those taxa from Eastern Europe and Asia, again designating lectotypes where appropriate and synonymising some names where applicable.

The distinguishing morphological features of the adult butterflies of M. phoebe and M. ornata, from sympatric populations in the Massif de la St. Baume, France ( Figures 1-2), can be seen from their undersides and summarized as follows: in M. phoebe the forewing apices are slightly more pointed than those of M. ornata; the submarginal black arches on the wings underside tend not to be thickened centrally and touch the intervening veins in M. phoebe, whereas those of M. ornata tend to be thickened centrally and do not touch the intervening veins; the antennae of M. phoebe are club shaped but spatulate in M. ornata. Meanwhile, Hinojosa et al. (2022) have elevated the “tentatively named” taxon pseudornata Muñoz-Sariot & Sánchez-Mesa, 2019 [TL: Quéntar, Sierra Nevada, Granada, 1300 m, emerged 29-V-2018, from larva collected on 15-IV-2018] to specific status. This name has been already sunk in synonymy with M. ornata bethunebakeri Sagarra, 1926 by Russell et al. (2020, p. 455). The present authors do not recognise the specific status of the taxon pseudornata until such time as specimens of this taxon have been shown to be reproductively isolated from M. ornata; hence our continued use of M. ornata for those Spanish specimens which are distinct from M. phoebe sensu stricto. Some museum specimens associated with M. phoebe as subspecies or forms, not examined in detail previously, are identified here as M. ornata; others are confirmed as M. phoebe.

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Figures 1-8.
1. Melitaea phoebe occitanica male underside, Nans, Var France, 24-V-1926. © Bartolozzi. 2. Melitaea ornata male underside, Nans, Var, France, 24-V-1926. © Bartolozzi. 3. Melitaea phoebe pseudosibina holotype ♂ upperside, Elbrus region, Itkol, Russian Federation, 27-VII-1967. © Tennent. 4. Melitaea phoebe pseudosibina holotype ♀,underside, Elbrus region, Itkol, Russian Federation. © Tennent. 5. Melitaea phoebe pseudosibina holotype, labels on pin © Tennent. 6. Melitaea phoebe pseudosibina paratype ♀ upperside, Elbrus region, Itkol, Russian Federation, 26-VII-1967. © Tennent. 7. Melitaea phoebe pseudosibina paratype ♀ underside, Elbrus region, Itkol, Russian Federation. © Tennent. 8. Melitaea phoebe pseudosibina paratype ♀, labels on pin. © Tennent.

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#### Observations on some forms, varieties and subspecies associated previously with M. phoebe

M. phoebe pseudosibina Alberti, 1969 [TL: Elbrus Region, Itkol, Kabardino-Balkaria, Russian Federation, 2100 m] was figured by the author (Taf. 1, figs 1c and 2c, paratypes). These monochrome Figures of the uppersides are not particularly informative but indicate this form to be lightly marked in the discal area compared with the specimens of M. phoebe from Kislovodsk (♂) and Pjatigorsk (♀) from circa 800 m and 550 m, respectively. The figure of a paratype of subsp, pseudosibina by Van Oorschot & Coutsis (2014, pl. 12, fig. 24) does somewhat support this detail but indicates lighter markings in the post-discal area only of the forewings but not on the hindwings. More detailed photographs (provided by John Tennent, see acknowledgements) of the holotype male ( Figures 3-5) show it to be lightly marked in the discal and post-discal areas of the forewing upperside and the discal area of the hindwing upperside with the orange spots barely visible. The undersides of the hindwings are, however, well-marked with the orange spots clearly visible but the forewing undersides have the typical markings very thin or absent. The antennae are club shaped and the pre-marginal black arches are thin and touch the intervening veins, characters typical of M. phoebe. A paratype female captured at the same elevation a day previously is not so lightly marked on the upperside ( Figures 6-8), also identifiable as M. phoebe.

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Figures 17-24.
17. M. ornata, male underside, Campo Real, Madrid, Spain, 06-VI-1972, leg. Gómez Bustillo. © AVM. 18. M. ornata, worn male upperside, Campo Real, Madrid, Spain, no date, leg. Gómez Bustillo. © AVM. 19. M. ornata, worn male underside, Campo Real, Madrid, Spain, no date, leg. Gómez Bustillo. © AVM. 20. M. ornata male upperside, Montarco, Madrid, 06-VI-1971, leg. Gómez Bustillo. © AVM. 21. M. ornata male underside, Montarco, Madrid, 06-VI-1971, leg. Gómez Bustillo. © AVM. 22. M. ornata male upperside (left), underside (right), Valdelatas, Madrid, Spain, leg. E. García-Barros. © EGB. 23. Melitaea ornata male upperside, Sanabria, Zamora (NW Spain), 04-VII-1926, MNCM. © AVM. 24. Melitaea ornata male underside, Sanabria, Zamora (NW Spain), 04-VII-1926, MNCM listed as M. phoebe. © AVM.

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Similar lightly marked forms of M. phoebe have been found in the south of France ( www.butterfliesoffrance.com/html/Melitaea%20phoebe.htm), figured examples: female from Var, 10-V-2012, Alpes-de-Haute-Provence, 02-V-2011, also at www.gdoremi.altavista.org/Nymphalidae/Melitaea_phoebe_en.html figured example, male but with no data. Lightly marked specimens have also been found in North Macedonia, Skopje, Grupčin (♀) ( Figure 9). Alberti (1969, p. 193) considered this form to be distinct from caucasica Staudinger 1870, to which he referred the name sextilis Jachontov 1909, the small second generation form of M. phoebe in the Caucasus. Tshikolovets (2011, p. 497) placed it as a synonym of Melitaea phoebe ottonis Fruhstorfer, 1917 (replacement name for caucasica Staudinger) as did Tshikolovets & Nekrutenko (2012, p. 293).

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Figures 9-16.
9. Melitaea phoebe ♀ upperside, Grupčin, Skopje, Republic of Macedonia, 15-V-1990. © PJCR. 10. M. phoebe var. allophylus, holotype male upperside, Porté, Pyrénées Orientales, France, 9-15-VII-1939. © Hans-Peter Wymann. 11. M. phoebe var. allophylus, holotype male and cotype male undersides, Porté, Pyrénées Orientales, France, 9-15-VII-1939. © Hans-Peter Wymann. 12. M. phoebe var. allophylus, allotype male and cotype male undersides, Porté, Pyrénées Orientales, France, 9-15-VII-1939. © Hans-Peter Wymann. 13. M. phoebe rubialesi Bustillo ♀ holotype upperside, underside and tabels on pin, Loeches, Madrid, 15-V-1973. © AVM. 14. M. phoebe reared ♀ underside, ex ova, Nedešćina, Istria, Croatia, emerged 14-IX-2011. © PJCR. 15. M. ornata reared ♀ underside, ex ova 8 km southeast Trebinje, Herzegovina, emerged 07-V-2018. © PJCR. 16. M. ornata, male upperside, Campo Real, Madrid, Spain, 06-VI-1972, leg. Gómez Bustillo. © AVM.

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However, Butterfly Conservation Armenia, www.butterfly-conservation-armenia.org/melitaea-pseudosibina.html, considered this to be an endemic species of Caucasus and Transcaucasia. Tóth & Varga (2011) and Tóth et al. (2014) were unable to separate taxon sibina Alphéraky, 1881 (see Russell et al. 2022, p. 29, fig. 7) from M. phoebe, using morphometric measurements of male genitalia or molecular procedures, respectively. The only similarity between the taxa pseudosibina and sibina is the weak macular pattern in the post discal area of the forewings of pseudosibina, whilst sibina has both fore- and hindwings almost completely lacking in the black macular markings typical of M. phoebe. The present authors considers that the taxon pseudosibina is synonymous with M. phoebe ottonis and thus is a form of M. phoebe rather than of M. ornata. Without knowledge of the post L4 larvae it is not possible to be conclusive. It is highly possible that the difference in altitude at which the specimens figured by Alberti (1969, Tafel 1, figs 1c-4c) of the taxa phoebe and pseudosibina were taken (5-800 m and 2100 m, respectively) could well account for the differences in their forewing upperside markings.

Melitaea phoebe Knoch, var. nova allophylus Rütimeyer, 1942 [TL: Porté, Pyrénées Orientales, France]. The male holotype and four male syntypes (labelled as allotype and three as cotypes), all taken between 9 and 15-July-1939 are present in the Naturhistorisches Museum Bern, Switzerland. From high resolution photographs of the undersides of the type series ( Figures 10-12), kindly provided by Hans-Peter Wymann (see Acknowledgements), it was noted that their wing morphology and antennal shape indicated that they were more similar to M. ornata rather than to M. phoebe but the time of capture was more akin to that of M. phoebe, which tend to emerge later than M. ornata (Verovnik et al. 2010; Russell & Tennent, 2022, p. 203). However, at high elevations in mountainous areas, the emergence of M. ornata has been seen to be delayed at times of deep long-lasting snowfall, which remains on the ground well into late spring. This prevents the larvae from waking from their diapause until much later than normal, in doing so the emergence of the adult butterflies may occur very much later. This scenario was observed by John Coutsis (Pers Comm.) in the Greek mountains (considerably further south than the Pyrénées); its fact it was first thought that these butterflies were of a second brood, until it was observed that the first brood of other species were also in flight (e. g. Coenonympha pamphilus (Linnaeus, 1758)). This record widens the distribution of M. ornata in France to the southwest and provides more of a continuity of distribution between France and Spain, where M. ornata has been present for many years. Identification labels have been placed on the pins of the five specimens: “Misident. Melitaea ornata Christoph, 1893, Russell 2022”.

Russell et al. (2020) stated that some of the specimens of M. phoebe nimbula Higgins, 1941 from the Picos de Europa at c. 1225 m showed wing morphological characters of M. ornata; these look very similar to var. allophylus. It is noted that Hinojosa et al. (2022, p. 3, fig. 1) indicated that the mountains of north central Spain were populated by “ M. pseudornata” (= M. ornata bethunebakeri Sagarra, 1926, [see above]) rather than by M. phoebe, which appeared to occupy the Pyrenees. Thus, it is possible that Russell et al. (2020, p. 456) were in error in classifying the M. phoebe nimbula as a subspecies of M. phoebe. This adequately demonstrates the difficulties in correctly classifying museum specimens exemplifying a mixture of specific characters associated with the two species under consideration in this case.

Melitaea phoebe f. rubialesi Gómez Bustillo, 1973 [TL: Loeches (750 m), Province of Madrid, Spain, captured 15-May-1973]. Prior to the recognition that M. ornata occurs in Spain (see Russell et al. 2020), Russell & Tennent (2016) placed this name as a form of Melitaea phoebe occitanica. At this time the type material, which consists solely of a single female ( Gómez-Bustillo, 1973, p. 36), was not examined. This specimen (the holotype by monotipy) is housed in the Universidad Politécnica de Madrid [UPM] in Madrid (E). High resolution photographs of the holotype ( Figure 13) were compared with examples of M. phoebe and M. ornata females ( Figures 14-15). It was concluded that this was a “form” of M. ornata and not of M. phoebe. Although the names of varieties and forms are not recognized by the ICZN, it was thought important to identify this specimen; as it extends the distribution of M. ornata to the Province of Madrid, from where it has not previously been reported. A label has been placed on the specimen’s pin: “Misident. Melitaea ornata Christoph, 1893, Russell & Vives, 2023”.

Apart from the holotype, AVM discovered, among the specimens in the Gómez Bustillo collection headed M. phoebe, two male specimens from Campo Real only some 6.5 Km to the south-southeast of Loeches, across a dry area of earthworks dating from the Spanish Civil War (1936-1939). One specimen was captured 6-VI-1971 ( Figures 16- 17), the other specimen is very ragged ( Figures 18-19), its date of capture unknown but presumably later in the month. Both specimens resemble the form rubialesi and thus we classify them as M. ornata.

Another male specimen, also resembling rubialesi, was found by AVM in the same collection ( Figures 20-21). It was captured also on 6-VI-1971 at Montarco (a well-known collecting site 15 km southeast of central Madrid, now in the suburb of Rivas-Vaciamadrid ( Fidalgo & Paris, 2023, p. 8); this location is only some 13 km west of Loeches. Again, we classify this specimen as M. ornata. All three specimens have had an extra label placed on their pin: “Misident. Melitaea ornata Christoph, 1893, Russell & Vives, 2023”.

E. García-Barros photographed two specimens originating from the Madrid University campus (a male is figured - Figure 22), which are undoubtedly also M. ornata, as the larvae found in this location have red-brown heads (J. Martin pers. comm. to E. García-Barros). This locality is to the northwest of the city rather than to the southeast as are the locations mentioned above.

Papilio tremulae Pillar & Mitterpacher, 1775, was synonymised with nominotypical M. phoebe by Russell & Tennent (2016, note 93) on the basis that there had been no reports of M. ornata from Croatia, the Type Locality of this taxon. M. ornata has since been confirmed from Croatia (Russell & Pateman, 2019); however, the specimen figured by the authorities (Tab. IV, figs 1-2) is considered still to be representative of M. phoebe, with the submarginal black markings touching the intervening veins.

#### Further Spanish specimens in the Gómez Bustillo collection in UPM previously identified as Melitaea phoebe

1. 1).

   A male specimen originating from Sanabria, Province of Zamora (NW Spain) ( Figures 23-24). The wing morphology of the specimen and the shape of its antenna suggest that it is M. ornata. The capture date of 4-VI-1926, however, is reminiscent of capture times of M. phoebe, but there are mountainous areas within the Parque Natural del Lago Sanabria y Sierras in excess of 1700 m above sea level. Thus, it is possible that the larva of this specimen suffered an elongation of diapause or, as a result of wet conditions, skipped diapause and continued feeding, producing an adult M. ornata in the summer of the same year (see Russell et al. 2007, p. 145; Benyamini, 2021, p. 190 [taxon klili] and Russell et al. 2023, pp. 187-195). Interestingly, Hinojosa et al. (2022, p. 3, fig. 1) indicated that specimens of “ M. pseudornata” (= M. ornata [ Russell et al. 2020, p. 455] ) had been found in mountainous regions further north in the provinces of León and Asturias and further south in the province of Ávila, with no reports of M. phoebe from the area surrounding the National Park. They also considered that some specimens of their taxon pseudornata were “double brooded” with adults present at very low altitude in September possibly originating from the west coast of the province of La Coruña, NW Spain ( Hinojosa et al. 2022, pp. 5-6). However, it was not stated whether this was simply some larvae skipping diapause and continuing to feed, with a proportion of adults emerging the same year (see Benyamini, 2021, p. 190), or a “complete 2 nd brood”, We consider that the specimen under consideration is most probably M. ornata, and a label indicating such has been placed on the pin: “Misident. Melitaea ornata Christoph, 1893, Vives, 2023”.

2. 2).

   A male specimen in rather poor condition and without a complete antenna ( Figures 25-26), taken on an unspecified date in July 1967 at Puerto de la Ragua, Sierra Nevada, Granada at 1990 m. Russell et al. (2020, pp. 450-451) reported 5 specimens of M. ornata from the Sierra Nevada at 1600 m (1 in MZB, 3 in MCZHU, Harvard, U.S.A. and a pair of specimens in NHM, London). Muñoz-Sariot & Sánchez-Mesa (2019, p. 9) reported 2 specimens of M. ornata from the Sierra Nevada (♂ Quéntar at 1300 m and ♀, Beas de Granada at 1350 m, Figures 2a-2b respectively [not Figures 1a-b, as indicated in their text]). The only precise reports of M. phoebe from the Sierra Nevada are by Muñoz-Sariot & Sánchez-Mesa (2019, p. 7): a pair of specimens from Beas de Grenada at 1460 m (indicating a mixed population?); Hinojosa et al. (2022, p. 3, fig. 1) indicated a preponderance of M. phoebe in the Sierra Nevada. Although worn and lightly marked, this specimen bears a resemblance to M. ornata with respect to the forewing underside black submarginal markings being more triangular than smooth arches in shape. However, these markings clearly touch the intervening veins, thus we consider this specimen to be M. phoebe rather than M. ornata.

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Figures 25-32.
25. M. ornata male upperside, Puerto de la Ragua, Sierra Nevada, Granada, Spain, VII-1967, leg. Fernández Rubio. © AVM. 26. M. ornata male underside, Puerto de la Ragua, Granada, Sierra Nevada, Spain,VII-1967, leg. Fernández Rubio. © AVM. 27. M. ornata male upperside, Navalguijo, Sierra de Gredos, Ávila, Spain, 28-V-1986, leg. J. L. Viejo & J. M. Cano. © EGB. 28. M. ornata male underside, same data as Figure 27. 29. M. ornata female upperside, Camino Valdosillos, Cuenca, Spain, 16-VI-2001, leg. S. Jiménez & J. I. Arce. © EGB. 30. M. ornata female underside, same data as Figure 29. 31. M. ornata male upperside, Masegozo de Taguña, Guadalajara, Spain, at circa 1000 m., 15-VI-1980, leg. García-Barros. © EGB. 32. M. ornata male underside, same data as Figure 31.

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#### A selection of specimens here classified as M. ornata from the entomological reference collection of the Universidad Autónoma de Madrid, Departmento de Biología (UAM)

1. 1. A male specimen taken on 28-V-1986 at Navalguijo, Sierra de Gredos, Ávila, leg. J. L. Viejo and J. Martín Cano ( Figures 27-28), showing the typical morphology of M. ornata: black submarginal markings on the hindwing underside not touching the intervening veins and the antennae spatulate rather than elongated club shaped. No specimen of either taxa was mentioned from this locality in the supplement of Hinojosa et al. (2022).
2. 2. A female specimen taken on 16-VI-2001 at Camino Valdosillos, Cuenca, leg. S. Jiménez & J. I. Arce ( Figures 29-30) has the black submarginal markings on the underside more triangular in shape and not touching the intervening veins, suggesting it is M. ornata. There is no record of this location for either taxa in the supplement of Hinojosa et al. (2022).
3. 3. A pair of specimens from Guadalajara: male captured on 15-VI-1980 at Masegozo de Taguña at circa 1000 m ( Figures 31-32) and the female, rather worn and taken on 7-VI-1980 only a few km. away at Auñón ( Figures 33-34) at the lower altitude of circa 700 m, both leg. E. García-Barros, are clearly M. ornata.
4. 4. A female (?), judging by its rounded forewing shape taken in 2018 [date not given] at San Felices de Castillaria, Palencia ( Figures 35-36) leg. M. L. Munguira has the black submarginal markings swollen centrally, tending to triangular in the forewing, and not touching the intervening veins and spatulate antenna, identifying this specimen as M. ornata.
5. 5. A male specimen taken on 28-VI-2018 by M. L. Munguira at El Vallecillo, Albarracín, Teruel ( Figures 37-38) has centrally thickened submarginal markings not touching the intervening veins but rather pointed, club-shaped antenna; however, we classify this as M. ornata. Interestingly, Hinojosa et al. (2020, supplement p. 4) list this as a location for the taxon pseudornata.
6. 6. Another male specimen taken on 18-IV-1998 at Montes de Torrero, Zaragosa at 230 m a.b.s.l. ( Figures 39-40) by G. E. King has the black submarginal markings not extending to the intervening veins. This specimen is classified as M. ornata. Hinojosa et al. (2022) do not mention this location for either taxa.
7. 7. A male from Yepes, Toledo taken on 13-V-2007, by J. Martin & L. Ureña ( Figures 41-42), has the spatulate antennae and submarginal black arches not touching the intervening veins and thus we classify this specimen as M. ornata.

The locations of these specimens provide further information on the distribution of M. ornata apparently adding the provinces of Cuenca, Guadalajara, Palencia, Toledo and Zaragoza to its Spanish distribution.

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Figures 33-40.
33. M. ornata female upperside, Auñón, Guadalajara, Spain, at circa 700 m., 7-VI-1980, leg. García-Barros. © EGB. 34. M. ornata female upperside, same data as Figure 33. 35. M. ornata female (? judging by its rounded forewing shape) upperside taken in 2018 [date not given], San Felices de Castillaria, Palencia, Spain, leg. M. L. Munguira. © EGB. 36. M. ornata female underside, data as for Figure 35. 37. M. ornata male upperside, El Vallecillo, Albarracín, Teruel, Spain, 28-VI-2018, leg. M. L. Munguira. © EGB. 38. M. ornata male underside, same data as Figure 37. 39. M. ornata male upperside, Montes de Torrero, at 230 m, Zaragoza, Spain, 18-IV-1998, leg. G. E. King. © EGB. 40. M. ornata male underside, same data as Figure 39.

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Figures 41-44.
41. M. ornata male upperside, Yepes, Toledo, Spain, 13-V-2007, leg. J. Martín & L. Ureña. © EGB. 42. M. ornata male underside, same data as fig. 41. 43-44. Larval forms of M. phoebe. 43. M. phoebe occitanica final instar larva, ex ovum from ♀ captured circa 0.5 km NW of Nede šćina, Labinština, Istria, Croatia, 285 m, 10-VIII-2011. © M. Gascoigne-Pees. 44. M. phoebe phoebe, final instar larva ex ovum from ♀, Slovakia, 30-VII-2010, © D. Zitnan.

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#### Some comments on the observations made by Hinojosa et al. (2022)

1. 1).

   P henology and V oltinity: some confusion were present concerning the voltinity of M. ornata. They suggested that the taxon pseudornata Muñoz-Sariot & Sánchez-Mesa, 2019 was double brooded (bivoltine) because it had two flight periods and that M. ornata was bivoltine only in captivity under laboratory conditions quoting Russell & Pateman (2013) and Russell et al. (2014) ( Hinojosa et al. 2022, p. 6). Neither of these articles suggested that M. ornata was truly bivoltine, i. e. had two completed generations in a single year, only partially bivoltine; confusion arises from the use of the word “generation” by the former authors. What occurred during the rearing of M. ornata from Chios (2013) and Slovenia (2014) open to the English showery spring weather was that the larvae split into two groups: the first group instead of entering diapause at stage L4, as would have been expected, continued to feed, pupated and adults emerged in the summer of the same year; whereas the second group entered diapause with the larvae only resuming feeding in the early spring of the following year. This was merely a larval diversification due to prevailing weather conditions; those larvae reared in a greenhouse protected from the prevailing wet weather conditions all entered diapause and followed the “normal” growth pattern of M. ornata associated with their natural dry environments. This scenario of bypassing diapause by some larvae occurs naturally in the taxon klili Benyamini, 2021 (synonimised with M. telona (part of the super-species M. ornata) by Russell et al. (2023). The populations of klili occupy just two permanently low-lying wet areas in stream valleys in Central Galilee (© Nahal Shezor, 206 m) [TL.] and Lower Galilee (© Nahal Zippori, 90 m), Israel ( Benyamini, 2021). Under these circumstances, due to the hotter temperatures experienced by the larvae in Israel, complete bivoltinity can occur because of the much shorter development time of the larvae, which allows time for the group which bypassed diapause to complete a true 2 nd generation in the same year; although the larvae which enter diapause do not begin feeding again until the following spring.

   Thus, the situation in Europe can be expressed as follows:

   Year 1: L4 larvae emerge from diapause, feed up, pupate and produce adults (spring brood) which mate, the female lays an egg batch, larvae hatch and feed up to stage L4; some larvae then continue feeding to final instar, pupate and adult butterflies emerge (partial summer brood), the remaining larvae enter diapause and remain in that stage throughout the summer and winter to exit their web in year 2 and begin feeding to final instar, pupate and adults emerge (spring brood) but these butterflies are the same “generation” as the previous summer brood, or possibly a combination of both the Year 1 broods, if the offspring of the summer brood have been able to survive the winter, which is probably unlikely in Europe.

   It is strongly suspected that the apparent bivoltinity in the taxon pseudornata is in reality only partial with some larvae bypassing diapause and continuing to feed to produce adults in August. The observations of adults in August detailed in the supplementary material provided by Hinojosa et al. (2022, suppl. 4) indicate observations on 26, 27 and 28-VIII (no year[s] given) at Praia de Rostro, A Grixa and N. of Cuño, respectively. These locations, at or below 200 m above sea level, are all to be found in the west of the province of La Coruña, the most northwesterly in Spain and consequently open to the humidity of the Atlantic Ocean air flow from the prevailing south-westerly winds. Thus, it is considered most likely that the apparent bivoltinity is in fact the result of a pre-diapause division of the larvae, with one group bypassing diapause, continuing to feed, pupating and producing adult butterflies in August, thus reflecting the larval behaviour when subjected to humid conditions. The lower summer temperatures experienced by the larvae in north-western Spain compared with those in Israel would preclude a complete second generation, the offspring of which would be most likely to enter diapause; any which did not reach that stage would be unlikely to survive.

2. 2).

   H ybridisation between M. phoebe and taxon pseudornata: this has been suggested to have occurred on a number of occasions previously by Hinojosa et al. (2022, p. 7) and more recently between M. phoebe and M. ornata by Bálint & Ilonczai (2001, p. 217) and Russell et al. (2014). There are several localities in Spain where both taxa are sympatric and at least partially synchronic - Beas 1200 m, and Monachil, 1600 m, in the province of Granada ( Sánchez-Mesa & Muñoz-Sariot, 2017, pp. 315-316); La Sagra 19, 23-V taxon pseudornata, 21-V M. phoebe and Güejar Sierra, 11-V taxon pseudornata, 23-IV M. phoebe ( Hinojosa et al. 2022, suppl. pp. 3-4). Thus, it is highly possible that this scenario would continue and in such cases their presence would make for difficulties in taxon determination and could well account for some larvae having black heads and the adult being determined as pseudornata. It could well be the cause of difficulties in the determination of adults from their wing and antenna morphology, as has been experienced by the first author.

3. 3).

   LARVAL COLOUR has been shown to be variable in different Spanish locations in M. phoebe and the taxon pseudornata ( Hinojosa et al. 2022, p. 6, fig. 4). Variation of larval colouring is well known and documented; in fact, the two very different larval forms of M. phoebe account for the subspeciation of M. phoebe occitanica Staudinger, 1871, which has larvae with an orange lateral stripe ( Figure 43) and that of the nominate M. phoebe phoebe, which has no orange lateral stripe but is well covered in white spots ( Figure 44). The larvae of M. ornata can vary also even in those larvae from the same egg batch, as was the case with an egg batch from Mamousia, Ahaia, Greece ( Russell et al. 2007, p. 159, figs 16- 17).

#### Comments on the overall distribution of M. ornata

Melitaea ornata adversaria Korb, Stradomsky & Kuznetsov, 2015 [TL: Kyrghyzia (= Kyrgyzstan), Kyrghyz Mts., Ala-Too settlement vicinity, 1100-1200 m]; at approximately 74.5° east, this is very much further east that previous records; i. e. the western side of the Southern Ural Mountains (Guberli [the Type Locality] and Kysylkaya [ Van Oorschot & Coutsis, 2014, plate 12, figs 20-21]) are at approximately 58° East. Also the reports by Tshikolovets et al. (2016) of a number of locations in southeastern Kazakhstan, which are even further east, around 85 ° East; thus this species is apparently well established in Asia. Unfortunately, Korb (2011, p. 158) had reported M. phoebe saturate from the Kungey Ala-Too Mountains; however, later Korb, Stradomsky & Kuznetsov (2015, p. 140) considered that M. phoebe did not occur in North Tian-Shan. The presence of this species very close to the border with northwest China, one must expect reports from China to be imminent.

The presence of M. ornata allophylus Rütimeyer, 1942 [TL: Porté, Pyrénées Orientales, France] in the eastern Pyrénées links the populations in Var (southeastern France) with the Spanish populations of M. ornata in the Spanish Cantabrian and Asturian mountains. It also raises the possibility of finding M. ornata in the intervening French departments of Aude and Hérault, particularly in xerothermic habitats.

### Acknowledgements

Dr. Hans-Peter Wymann, curator of entomology at the Naturhistorisches Museum Bern (Bern, Switzerland) is thanked for providing high resolution photographs of the five syntypes of Melitaea phoebe var. allophylus present in the museum collection. John Tennent (Oxford, United Kingdom) is thanked for providing photographs of some of the type of material of M. phoebe pseudosibina in the Deutsches Museum (Munich, Germany) and for his comments on the manuscript which lead to improvements. We thank Javier Gastón (Bilbao, Spain) for the photographic review and adjustments. Dr. Amparo Blay, curator of entomology at the Museo Nacional de Ciencias Naturales (MNCN) (Madrid, Spain) is thanked for her help in reviewing the collections. Dr. Enrique García-Barros (Madrid, Spain) is thanked profusely for examining the specimens of M. phoebe sensu latu in the Universidad Autónoma de Madrid, Departmento de Biología (UAM) (Madrid, Spain) and sending many photographs to the first author to identify specimens of M. ornata within the collection; this has significantly enlarged the range of this species in Spain. Prof. Dr. Antonio Notario, in the Universidad Politécnica, E. T. S. Ingeniería de Montes, Forestal y del Medio Natural, Unidad de Entomología y Zoología (UPM) (Madrid, Spain), is thanked for his help in reviewing the collections.

### References

Alberti, B. (1969). Neue oder bemerkkenswerte lepidopteren-formen aus dem Großen Kaukasus. Deutsch Entomologische Zeitschrift, 16(I-III), 189-203.

Bálint, Z., & Ilonczai, Z. (2001). Újabb adatok a Magyarországon védett nappali lepkék ismeretéhez (Lepidoptera: Lycaenidae, Nymphalidae). Természetvédelmi közlemények, 9, 209-218.

Benyamini, D. (2021). Butterflies of the Levant and surrounding area (Vol. III (part)). MicroRobotics Ltd. Beit-Ayre.

Fidalgo, P. A., & Paris, M. (2023). A new species of Nomada Scopoli, 1770 (Hymenoptera, Apidae) found in the Entomological Collection at the Museo Nacional de Ciencias Naturales, Madrid (Spain). Boletín de la Asociación española de Entomología, 47(1-2), 7-15.

Gómez-Bustillo, M. R. (1973). Nuevas subespecies y formas de Lepidópteros-Ropalóceros del centro de España. SHILAP Revista de lepidopterología, 1(1-2), 26-39.

Hinojosa, J. C., Tóth, J. P., Monasterio, Y., Sánchez-Mesa, L., Muñoz-Sariot, G., Escobés, R., & Vila, R. (2022). Integrative Taxonomy reveals a new Melitaea (Lepidoptera: Nymphalidae) species widely distributed in the Iberian Peninsula. Insect Systematics and Diversity, 6(2), 1-9.

Korb, S. K., Stradomsky, B. V., & Kuznetsov, G. V. (2015). Two new subspecies of Melitaea ornata Christoph, 1893 (Lepidoptera, Nymphalidae) from Europe and Middle Asia. Amurian Zoological Journal, 7(2), 140-145, plate VI.

Muñoz-Sariot, G., & Sánchez-Mesa, L. (2019a). Nueva subespecie de Melitaea ornata (Christoph, 1893), con la descripción de sus estadios preimaginales (Lepidoptera: Nymphalidae). Arquivos Entomolóxicos, 21, 5-20.

Muñoz-Sariot, G., & Sánchez-Mesa, L. (2019b). Melitaea ornata pseudornata nuevo nombre de reemplazo para Melitaea ornata baetica Muñoz Sariot & Sánchez Mesa, 2019 (Lepidoptera: Nymphalidae). Arquivos Entomolóxicos, 21, 83-84.

Piller, M., & Mitterpacher, L. (1783) Iter per Poseganam Sclavoniae Provinciam Mensibus Junio et Julio Anno MDCCLXXXII. Susceptum a Mathia Piller Historiae Naturalis, et Ludovico Mitterpacher Oeconomiae Rusticae, in Regia Universitate Budensi Professoribus Presbyteris. Budae.

Russell, P. J. C., Bartolozzi, L., Hawkins, R. L., Tennent, W. J., & Léger, T. (2020). Designation of lectotypes for some Spanish and other western European Melitaea taxa, some with mixed syntypic series of M. phoebe ([Denis & Schiffermüller], 1775) and M. ornata Christoph, 1893 (Lepidoptera: Nymphalidae). SHILAP Revista del lepidopterología, 48(191), 449-472. https://doi.org//10.57065/shilap.369

Russell, P. J. C., Lukhtanov, V. A., & Tennent, W. J. (2022). Reassessment of the status of some European and Asian Melitaea taxa described as subspecies of Melitaea phoebe ([Denis & Schiffermüller], 1775), with designations of lectotypes where appropriate (Lepidoptera: Nymphalidae). Zootaxa, 5141(1), 25-38.

Russell, P. J. C., Pateman, J. E., Gagarina, A. V., & Lukhtanov, V. A. (2023). Investigations into the Melitaea ornata species complex in the Levant: M. telona and the newly erected M. klili Benyamini, 2021 (Lepidoptera: Nymphalidae). Zootaxa 5285(1), 187-195.

Russell, P. J. C., & Tennent, W. J. (2016). A synonymic list of names associated with western Palaearctic Melitaea phoebe (Denis & Schiffermüller, 1775) species group taxa (M. phoebe; M. punica Oberthür, 1876; M. ornata Christoph, 1893) (Lepidoptera, Nymphalidae). Nota lepidopterologica, 39(1), 27-56.

Russell, P. J. C., Tennent, W. J., Pateman, J., Varga, Z. S., Benyamini, D., Pe’er, G., & Bálint, Z. (2007). Further investigations into Melitaea telona Fruhstorfer, 1908 (= ogygia Fruhstorfer, 1908; = emipunica Verity, 1919) (Lepidoptera: Nymphalidae), with observations on biology and distribution. Entomologist’s Gazette, 58, 137-166.

Rütimeyer, E. (1942). Beitrag zur Kenntnis der Makrolepidopterenfauna der Ostpyrenäen. Mitteilungren der schweizerischen entomologischen Gesellschaft, 18, 428-445.

Sánchez-Mesa, L., & Muñoz-Sariot, G. (2017). Melitaea ornata (Christoph, 1893), nueva especie para la Península Ibérica. Primeros datos de su morfología, biología y ecología comparada con los de Melitaea phoebe (Denis & Schiffermüller, 1775). (Lepidoptera: Nymphalidae). Arquivos Entomolóxicos, 18, 313-324.

Tóth, J. P., & Varga, Z. S. (2011). Inter and intraspecific variation in the genitalia of the “Melitaea phoebe group” (Lepidoptera, Nymphalidae). Zoologischer Anzeiger, 250, 258-268. https://doi:10.1016/j.jcz.2011.05002

Tóth, J. P., Beraczki, J., Varga, Z., Rota, J., Sramko, G., & Wahlberg, N. (2014). Relationships within the Melitaea phoebe species group (Nymphalidae): new insights from molecular and morphometric information. Systematic Entomology, 39(4), 749-757.

Tshikolovets, V. V. (2011). Butterflies of Europe and the Mediterranean area. Tshikolovets Publications.

Tshikolovets V. V., Kosterin, O., Gorbunov, P., & Yakovlev, R. (2016). The Butterflies of Kazakhstan. Tshikolovets Publications.

Tshikolovets, V. V., & Nekrutenko, Y. P. (2012). The Butterflies of Caucasus and Transcaucasia (Armenia, Azerbaijan, Georgia and Russian Federation). Tshikolovets Publications.

Van Oorschot, H., & Coutsis, J. G. (2014). The genus Melitaea Fabricius, 1807 (Lepidoptera: Nymphalidae, Nymphalinae) Taxonomy and Systematics with special reference to the male genitalia. Tshikolovets Publications.

### Author notes

*Autor para la correspondencia / Corresponding author