Pyrausta Schrank, 1802

Landry, Bernard, 2015, The Pyraustinae (Lepidoptera, Pyralidae s. l.) of the Galápagos Islands, Ecuador, Revue suisse de Zoologie 122 (1), pp. 55-70 : 61

Key to the Galápagos species of Pyrausta Schrank

1 Forewing with orange spots or mostly orange; if forewing pattern obscured, then hindwing paler base with orange scaling; male genitalia with uncus of medium girth, with or without long setae along ventral margin of valva at base; female genitalia with colliculum of ductus bursae followed by distinctly enlarged section .......................... 2

1’ Forewing usually with mellow yellow markings; if forewing pattern obscured or with orange scaling, then hindwing paler base light yellow ( Figs 9-12 ); male genitalia with narrow uncus and very long setae along ventral margin of valva at base; female genitalia with colliculum of ductus bursae followed by almost equally narrow section ..................................................................................................................................... P. galapagensis sp. n.

2 Forewing darker colour violet, with subapical orange marking extending along costa to apex; orange markings usually forming 4 spots, the median two sometimes converging into one; forewing base orange instead of darker violet, before postbasal line ( Figs 7, 8); male genitalia with clasper distinctly spoon shaped; corpus bursae of female genitalia with appendix bursae .................................................................................... P. panopealis (Walker)

2’ Forewing darker colour dark brown, with subapical orange marking not extending to apex along costa; orange more extensive, especially medially and at base, sometimes with dark brown reduced to lines (postbasal, postmedian, and subapical) and dash at end of cell, except in less common specimens with forewing entirely dark ( Figs 13-16 ); male genitalia with clasper a simple, short, triangular sheet; corpus bursae of female genitalia without appendix bursae ............................................................................................................................... P. insolata sp. n.

Figures

Figs 9-16. Adults of Galápagos Pyraustinae. (9-12) Pyrausta galapagensis. (9) ♂ holotype, CNC. (10) ♀ paratype, Santa Cruz, NNW Bella Vista, 225 m elev., 18.ii.2005, MHNG. (11) ♀ paratype, Isabela, NE slope Alcedo, 483 m elev., 31.iii.2004, MHNG. (12) ♂ paratype, same data as Fig.10, MHNG. (13-16) Pyrausta insolata. (13) ♂ holotype, MHNG.(14) ♂ paratype, Isabela, NE slope Alcedo, 869 m elev., 2.iv.2004, MHNG. (15) ♀ paratype, Isabela, 3 km N Sto Tómas, Agr. zone, 8.iii.1989, CNC. (16) ♀ paratype, Pinta, 400 m elev., 17.iii.1992, MHNG.