CALISTO. ARGUS. 81 



CALISTO HtJBN. 



The hairy eyes, the dilatation of the base of the costal and 

 median veins of the primaries, the insertion of all the branches of 

 the post-costal veins beyond the extremity of the discoidal veins, 

 the strongly angulated middle disco-cellular vein and the lohed 

 secondaries, distinguish this genus. 



1. C. zangis Fab. E. S. Ill, 218. C. agues Cram. Figured in Cram. pi. 

 325. Herbst, pi. 203. 



Upper side brownish-black velvety, a little paler towards the 

 tip ; a small black eye with a yellow iris at the lobe of the se- 

 condaries. 



Under side ferruginous, with four black transverse and undulated 

 lines, of which two are between the base and the middle, the other 

 two near the terminal edge. 



Pnmanes, opposite the summit, have a large black eye, with a 

 russety iris and a double white pupil, 



Secotidaries have two eyes, of which the anal one is like that on 

 the upper side, the other similar to that of the primaries, but a 

 little oblong and surmounted with three white points. 



Body of the color of the wings. 



Carolina. — Expands an inch and a half. 



Enctc. M£th. 



Fam. yiii. t.ycaenidae. 



Larva in the form of Oniscus (wood-louse.) Chrysalis sbort, 

 obtuse at both ends. Perfect insect; abdominal edge em- 

 bracing a little portion of the abdomen. Discoidal cellule 

 closed apparently by a small nerviform prominence. Hooks 

 of the tarsi very small. 



ARGUS Linn. 

 Head smaller than the thorax ; palpi bent ; second article co- 

 vered with short and thick-set hairs ; the last article naked, thin 

 and filiform ; antennce moniliform, terminated by fusiform club, 

 compressed laterally at its extremity. The color of Argus is 

 usually blue. The under side presents a number of small spots 



\ 



