114 HETEROCERA. 
This species varies to a considerable extent, both in the brown bands of the primaries 
and also in colour. Having compared the types of the above-mentioned so-called species 
together, and with a good series of specimens, I do not hesitate to consider all to belong 
to one and the same species. The type specimen of Boisduval’s C. heliconides is labelled 
as from Colombia, although he gives Guatemala as the locality in his description. 
18. Pericopis felderi. (Tab. XII. fig. 4.) 
Chetone felderi, Boisd. Lép. Guat. p.91*; Butl. Trans. Ent. Soc. 1872, p. 256; Ann. & Mag. Nat. 
Hist. 4th ser. xvi. p. 168. 
Hab. Nicaragua 1. 
I am indebted to the kindness of M. C. Oberthiir for sending me Boisduval’s type to 
figure ; it is the only specimen known to me. P. felderi is a very distinct species, and 
easily recognized from all its allies by the white bands and spots of the primaries and 
secondaries, 
19. Pericopis salvini. (Tab. XII. fig. 3.) 
Anthomyza salvini, Felder, Reise Nov. Lep. iv. t. 108. £.8'; Butl. Ann. & Mag. Nat. Hist. 4th ser. 
vill. p. 290. 
Pericopis salvini, Butl. Trans. Ent. Soc. 1872, p. 58. 
Chetone salvini, Butl. Ann. & Mag. Nat. Hist. 4th ser. xvi. p. 168. 
Hab. CentraL America (Salvin, mus. Felder)!; Guaremana, Polochic valley (Salvin, 
mus. Oxford); Panama, Volcan de Chiriqui (Zrétsch, mus. Staudinger). 
I have figured what I believe to be the male of Dr. Felder’s species; it agrees in 
many respects with his figure, but the primaries are much blacker, reducing the fulvous 
area to two longitudinal bands. 
20. Pericopis ithomia. 
Anthomyza ithomia, Felder, Reise Nov. Lep. iv. t. 108. f. 77. 
Chetone ithomia, Butl. Ann. & Mag. Nat. Hist. 4th ser. xvi. p. 169; Boisd. Lép. Guat. p. 92. 
Hab. Centra America (Salvin, mus. Felder)!; GUATEMALA, Chacoj in Vera Paz 
(Champion); Panama, Volcan de Chiriqui (Ride). 
I have received specimens of this insect as P. lycorea, Staud.; but I cannot find the 
description, and therefore take it to be a manuscript name. 
21. Pericopis pheba. 
Chetone pheba, Boisd. Lép. Guat. p. 90’. 
Phaloé pheba, Butl. Ann. & Mag. Nat. Hist. 4th ser. xvi. p. 169°. 
Pericopis isse, Walk. (nec Hiibn.) Cat. ii. p. 344, 
Hab. 1 Guatemaia 1—Amazons?; Ecuapor (Buckley, mus. D.). 
The occurrence of this species in our country is doubtful; the only authority I have 
