PTEROCYPHA.—ISCHNOPTERYX. 157 
5. Pterocypha cometes, sp. n. (Tab. LV. fig. 22.) 
Primaries pale brownish-fawn-colour, with a greenish shade along the costal margin, apex, and outer margin, 
and with a brown line crossing near the base, several narrow brown lines beyond it crossing from the 
costal to the inner margin, a very fine waved white line crossing beyond the middle, and a marginal row 
of small white spots extending from the apex to the anal angle, the marginal line black, the fringe 
greyish-brown ; ; secondaries brownish-fawn-colour, crossed beyond the middle from the costal to the 
inner margin by three faint waved lines; the underside pale greyish-brown, the outer margins of both 
wings broadly bordered with black, inside which are several narrow black lines, a rather large black spot 
at the end of the cell on the primaries: head and thorax greenish-fawn-colour, the antenne, abdomen, 
and legs brownish-fawn-colour. Expanse 1? inch. 
Hab. Mexico, Presidio de Mazatlan (Forrer), Paso de San Juan in Vera Cruz (coll. 
Schaus); GuateMata, Volcan de Santa Maria, Pacific Slope (Richardson), Volean de 
Atitlan 2500 to 3500 feet (Champion). 
Varies considerably in colour and in the distinctness of the lines crossing the wings. 
We figure Mr. Schaus’s specimen, it being in much fresher condition than any of ours. 
ISCHNOPTERYX. 
Ischnopterix, Hiibner, Verz. bek. Schmett. p. 332 (1816). 
Syrtodes, Guenée, Sp. gén. des Lép. x. p. 451; Walker, Cat. xxv. p. 1372. 
Walker in his Catalogue included eight species in this genus, and others have since 
been added by Felder and Rogenhofer and Méschler. Eight species are here enumerated 
from Central America, half of which are described as new. Ischnopteryx is probably 
confined to Tropical America. 
1. Ischnopteryx chlorata. 
Ischnopteris chlorata, Hiibn. Samml. exot. Schmett. t. 222. figg. 1-4". 
Syrtodes chlorata, Guen. Sp. gén. des Lép. x. p. 453°; Walk. Cat. xxv. p. 1874. 
Ischnopteryx pexatata, Méschl. Verh. zool.-bot. Ges. Wien, 1881, p. 412, t. 18. fig. 24°. 
Hab. Mexico, Jalapa (Hége, M. Trujillo), Coatepec (coll. Schaus, Brooks) ; Panama, 
Chiriqui (Ribbe ; Trétsch, in mus. Staudinger), Bugaba, Volcan de Chiriqui 2000 to 
4000 feet (Champion).—CotomBia ; GuraNna, Surinam *. 
Apparently the commonest species of the genus. The females vary to a considerable 
extent, scarcely two specimens being alike ; the male also varies greatly in size. A 
specimen from Chiriqui in Dr. Staudinger’s collection is the smallest I have seen. 
2. Ischnopteryx bryifera. 
Syrtodes bryifera, Feld. & Rogenh. Reise der Novara, Lep. t. 131. fig. 28 (2) °. 
Hab. Mexico, Jalapa, Paso de San Juan (coll. Schaus); Nicaraeva, Chontales (Belt) ; 
Panama, Chiriqui (Zrétsch, in mus. Staudinger).—GuIaNa !. 
The male of this insect is very similar to the female; it is easily distinguished from 
the same sex of J. chlorata, Hiibn., by its longer and more angular hind wings. 
