Rhectocraspeda periusalis (Walker, 1859),

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: 369-371

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-FF8A-8217-7CEC-F93BFDD1F907

treatment provided by

Plazi

scientific name

Rhectocraspeda periusalis (Walker, 1859)
status

 

Rhectocraspeda periusalis (Walker, 1859) 

Figs 49, 50View Figs 49 - 56, 123View Figs 122 - 124, 169View Figs 168 - 172

Botys periusalis Walker, 1859: 564  .

Caprinia periusalis (Walker, 1859)  : Peck et al., 1998: 227.

Rhectocraspeda periusalis (Walker)  : Causton et al., 2006: 141. ‒ Roque-Albelo & Landry, 2015.

Material examined:

Holotype: ♂ from the USA ( BMNH).

Other specimens: 15 ♂, 13 ♀ from the Galápagos Islands: – Isabela: Tagus Cove; V[olcan]. Darwin, 300 m elev[ation].; V. Darwin, 1000 m elev.; 1 km W P[uer]to Villamil; 11 km N Pto Villamil; ± 15 km N Pto Villamil; 3 km N S[an]to Tómas, Agr[iculture]. Zone; Sierra Negra, pampa zone, 1000 m alt[itude].; pampa zone. – Pinta: 400 m elev. – San Cristóbal: 4 km SE Pto Baquarizo [sic]; 1 km S El Progreso. – Santa Cruz: 4 km N Puerto Ayora; agriculture zone, near (NNW) Bella Vista, GPS: 223 m elev., S 00° 41.297’, W 90° 19.670’; 2 km W Bella Vista; Media Luna, pampa zone. – Santiago: Central [camp], 700 m elev. Deposited in CDRS, CNC, MHNG.

Diagnosis: Although the males of this dark brown species with darker brown markings ( Fig. 49View Figs 49 - 56) are easily separated from other species by virtue of their thickened antennae at base and enlarged anal sector of the hindwing, females ( Fig. 50View Figs 49 - 56) will be best separated with the key presented above under Herpetogramma phaeopteralis (Guenée)  . The wingspan of the available males is 20-22 mm, that of the females 18-19 mm.

Biology: Known as the Eggplant webworm ( Heppner, 2003) the larva has been reared on several species of Solanaceae  , including many tomato species ( Solanum  spp.), potato ( Solanum tuberosum  L.), and tobacco ( Nicotiana tabacum  L.), but also on other plants in the Acanthaceae  , Amaranthaceae  , Cucurbitaceae  , Myrtaceae  , Phytolaccaceae  , Piperaceae  , and Rosaceae ( Robinson et al., 2014)  . In the Galápagos moths were collected between sea level and 1000 m in elevation, mostly in uninhabited areas or islands, in January until May.

Distribution: Based on BMNH specimens this widespread Western Hemisphere native described from the USA is also found in Jamaica, Mexico, Venezuela, Colombia, Brazil, Peru, and Argentina. Ferguson et al. (1991) also mention it from Bermuda and as a migrant in the eastern USA as far north as Massachusetts (see also Patterson et al., 2015). In the Galápagos it has been found so far only on the four islands listed above.

Remarks: External characters of the male holotype in the BMNH were found to match Galápagos specimens. The holotype has no abdomen, but the wing pattern and the enlarged anal angle of the hindwing are deemed sufficient to insure proper identification.

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

Rhectocraspeda

Loc

Rhectocraspeda periusalis (Walker, 1859)

Bernard Landry 2016
2016
Loc

Caprinia periusalis

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