J 31 6 CATALOGUE OP 



ISOPTERYX? PARVALIS. 



Mas. Alba; palpi porrecti, capitis latitudine breviores, articulo 

 So lanceolato ; antennae breves, robustce, setosce ; pedes breves 7 

 validi ; aloe fimbria purpureo-chalybcea ; anticm lineis duabus 

 nigricantibus subangulosis, \a antemedia, 2a submarginali 

 duplicata, annulo subapicali oblongo lineaque marginali 

 ochraceis,punctis marginalibus nigricantibus, litur is costalibm 

 ochraceis. 



Male. White, stout. Palpi porrecl, smooth, shorter than the 

 breadth of the head; third joint lanceolate, shorter than ihe second. 

 Antennae short, stout, setose. Abdomen extending somewhat beyond 

 the hind wings; apical tuft very small. Legs short, stout. Wings 

 with a purplish chalybeous fringe. Fore wings acute, with two 

 blackish slightly zigzag lines ; first line autemedial ; ""second sub- 

 marginal, double, accompanied near the costa by an oblique oblong 

 incomplete ochraceous ringlet; an ochraceous marginal line; mar- 

 ginal points blackish ; costa with some small ochraceous marks. 

 Length of the body 2 lines ; of the wings 5 lines. 



a. Ega. From Mr, Bates' collection. 



ISOPTERYX BILUNATALIS. 



Mas. Alba, sat robusta ; palpi porrecti, graciles, breves 9 supra 

 fusci, articulo So minima ; antenna validce, pubescentes, apices 

 versus subconvolutce, unispinosce ; thorax nigricans ; abdomen 

 nigro bifasciatum, apicem versus cinereum, alas posticas longe 

 superans ; alee subiridescentes, margine lata purpurascente 

 fusco plagas albidas includente, fimbria albida nigricante 

 punctata; anticce apice rotundatce, fascia basali,linea angu- 

 losa, annulo fusiformi, lunulis duabus guttisque duabus cos- 

 talibus purpurascente-fuscis ; posticce gutta purpurascente- 

 fuse a. 



Male. White, rather stout. Palpi porrect, slender, brown above, 

 very much shorter than the breadth of the head; third joint very 

 minute. Antenna? stout, pubescent, with a spine near the tips, which 

 are slightly convolute. Thorax blackish. Abdomen extending much 

 beyond the hind wings, with a black band near the base, and with 

 another beyond the middle, cinereous from the seeond band to the 

 tip. Legs moderately stout; femora, tibia? and joints of the tarsi 

 with black bands. Wings slightly iridescent, broadly bordered with 



