VADE MECUM. 121 



underneath are darker, and blacker at the base, the trian- 

 gular wreath consists of only ten spots, of which that next 

 the costal margin is kidney-shaped, with the concave side 

 towards the disk. 



N. B. — In one wing the pupil of the kidney-shaped sjjot is 

 double or interrupted in the middle. Kirby. 



Caterpillar. 



Chrysalis. 



POLYOMMATUS CAL^THIS. 



BuUerfltj. Very like the two preceding epccies. Fringe 

 barred with black. Secondary wings underneath, with a 

 discoidal white cinctured crescent, below which towards the 

 posterior margin is an undulated band consisting of seven 

 ocellated spots. Kirl/ij. 



Caterpillar. 



Chrysalis. 



Observation. The above three species are all related to 

 P. Argus, Idas, Sfc. but appear distinct. 



Gemis HESPEniA,p/. III. /ig. 15. 

 • H. Comma. 



Antenna; short ; knob rather abmpt, but growing gradually 

 thicker, ending in a hooked point ; joints less than thirty. 



Palpi rather longer than the head, very hairy. 



Legs long ; forelegs perfect ; cnbit .short, with a broadish 

 oblong spur a little l)elow the tip. 



Claies very short bifid, or double ; foot cushions large, filling 

 the .space between the claws. 



IVings intire ; primary triangular and nearly wedge-shaped ; 

 secondary between triangular and rounded, with a projec- 

 tion at the costal margin near the base. 



