Hymenia perspectalis (Hübner, 1796),

Bernard Landry, 2016, Taxonomic revision of the Spilomelinae (Lepidoptera, Pyralidae s. l.) of the Galápagos Islands, Ecuador, Revue suisse de Zoologie 123 (2), pp. 315-399: 341-343

publication ID

http://doi.org/ 10.5281/zenodo.155309

publication LSID

lsid:zoobank.org:pub:9ED8B8D5-ADA1-4B53-A1D3-0F75F889A179

persistent identifier

http://treatment.plazi.org/id/03EA87B1-FFA6-8233-7F9C-F906FDCBFA45

treatment provided by

Plazi

scientific name

Hymenia perspectalis (Hübner, 1796)
status

 

Hymenia perspectalis (Hübner, 1796) 

Figs 22, 23View Figs 17 - 24, 106View Figs 104 - 106, 152View Figs 148 - 152

Pyralis perspectalis Hübner, 1796: 18  .

Hymenia perspectalis (Hübner)  : Parkin et al., 1972: 104. ‒ Linsley, 1977: 37. ‒ Peck et al., 1998: 227. ‒ Causton et al., 2006: 141. ‒ Roque-Albelo & Landry, 2015.

Material examined: 13 ♂, 32 ♀, 22 of undetermined sex from the Galápagos Islands: – Española: Bahía Manzanillo  ; Las Tunas Trail, 100 m elev[ation]. – Fernandina: SW side, crater rim, GPS: 1341 m elev., S 00° 21.910’, W 91° 34.034’. – Isabela: Tagus Cove; ± 15 km N P[uer]to Villamil; V[olcan]. Darwin, 300 m elev.; Albermarle, San[to] Tomas, 1200 f[ee]t; V. Darwin, 630 m elev.; V. Darwin, 1000 m elev.; Alcedo, lado NE, 1100 m, cumbre, caseta Cayot. – Pinta: ± 15 m elev.; 200 m elev.; 400 m elev. – San Cristóbal: La Toma, ca. 6.5 km east El Progreso, GPS: 299 m elev., S 00° 55.356’, W 89° 31.089’. – Santa Cruz: Charles Darwin Research Station; Bahía Conway  ; low agriculture zone, GPS: S 00°42.132’, W 90° 19.156’; Finca Vilema, 2 km W Bella Vista; Horneman Farm, 200 m; Horneman Farm, 220 m; Los Gemelos. – Santiago: San Salvador, Bahia James  ; Bahía Espumilla  ; N side, GPS: 147 m elev., S 00° 12.186’, W 090° 42.888’; 200 m elev.; N side, GPS: 437 m elev., S 00° 13.316’, W 090° 43.808’; Aguacate [camp], 520 m elev.; NE side, close to Caseta, GPS: 686 m elev., S 00°14.177’, W 90°44.619’; Central [camp], 700 m elev.; Jaboncillo [camp], ± 850 m elev.. Deposited in AMNH, BMNH, CAS, CDRS, CNC, and MHNG.

Diagnosis: Quite variable in size, with a wingspan between 15 and 21 mm, this dark brown species ( Figs 22, 23View Figs 17 - 24) is most similar to Spoladea recurvalis (Fabricius)  ( Fig. 63View Figs 57 - 64), which is somewhat paler brown. Their white markings differ in the forewing by the thin median fascia from the dorsum not touching the discocellular stigma in H. perspectalis  , wider and touching the discocellular stigma in S. recurvalis  , and on the hindwing by the thin fascia presenting a median bilobed projection medially on the external margin in H. perspectalis  compared to the wider and evenly margined fascia of S. recurvalis  . Cryptobotys zoilusalis (Walker)  ( Figs 10, 11View Figs 9 - 16) also has white to cream fasciae, but these are very thin and that of the hindwing doesn’t have a bilobed projection medially.

Biology: Reputed to be polyphagous, this species has been reared on host plants in the family Amaranthaceae  , Apocynaceae  , Asteraceae  , Balsaminaceae  , Chenopodiaceae  , Fabaceae  , Liliaceae  , Scrophulariaceae  , and Solanaceae ( Robinson et al., 2014)  . Galápagos specimens have been collected from February until May in all altitudinal zones, up to the top of volcanoes, such as at 1341 m on Fernandina, in a diverse range of habitats.

Distribution: Based on specimens in the BMNH and MHNG this species is widespread in the Western Hemisphere from the USA to Argentina and the West Indies, but it occurs also in tropical and subtropical locales of Africa ( De Prins & De Prins, 2015) and India ( Robinson et al., 2014) and other islands such as Aldabra in the Indian Ocean (Shaffer & Munroe, 2007). Widespread in the Galápagos, it has been found so far on the seven islands listed above.

Remarks: I confirmed the identification of Galápagos specimens by comparing them with the original description and specimens in the BMNH. The type material pertaining to this species is lost, but the illustration in the original description (pl. 16 fig. 101) provided by Hübner leaves no doubt as to the identity of this species. The type locality is recorded as England, but the species is not resident in Europe, nor a regular migrant ( Slamka, 2013; Nuss et al., 2016).

AMNH

American Museum of Natural History

CAS

California Academy of Sciences

CDRS

Invertebrate Collection

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes

MHNG

Museum d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Lepidoptera

Family

Pyralidae

Genus

Hymenia

Loc

Hymenia perspectalis (Hübner, 1796)

Bernard Landry 2016
2016
Loc

Hymenia perspectalis (Hübner)

Causton C. E. & Peck S. B. & Sinclair B. J. & Roque-Albelo L. & Hodgson C. J. & Landry B. 2006: 141
Peck S. B. & Heraty J. & Landry B. & Sinclair B. J. 1998: 227
Linsley E. G. 1977: 37
Parkin P. & Parkin, D. T. & Ewing A. W. & Ford H. A. 1972: 104
1972