44 WILLIAM T. M. FORBES 



humeral vein, when present, extending free from Sc toward costa, 

 often forked at tip, but not reaching edge of wing. Larva with 

 prothorax not noticeably narrowed, without gula; prolegs with a 

 single band of hooks, or if with a second outer band it is much reduced ; 

 suspension girdle of pupa a simple loop or absent; the tongue, in the 

 pupa, not touching eyes. 



Family 55. Papilionidse. Fore leg with epiphysis; head broad; fore wing, in 

 our species, with all radials; M 2 associated with Cu-stem (quadrifid), 3d A free, 

 turning down toward inner margin; hind wing with only one anal (in our species). 

 Egg spherical. Larva very stout, with tufted hair in first stage; with osmeteria. 

 Pupa girt, but loosely, the anterior end with two points. 



Family 56. Pieridae. Fore leg fully developed in both sexes, with claws and 

 pulvillus, but without epiphysis, head narrower, but with the antennal sockets 

 not encroaching on the eyes; fore wing with one or two radials lost in our species, 

 except in Zegris, M 8 stalked with R-stem, M 2 associated with R-stem in both 

 wings, 3d A of fore wing rudimentary, running up into 2d A; hard wing with two 

 anals. Larva with fine secondary hair, slender and normal in form. Pupa girt 

 loosely, angular, ending in a single spine. 



Family 57. Lycaenidae. Fore leg nearly fully developed in male, with spinules 

 on tarsus, but without normal terminal claws and pulvilli, wholly normal in 

 female; head very narrow, the antennal sockets encroaching more or less on the 

 eyes; front not depressed. Fore wing with one or two radials lost in our species, 

 M! usually free; M 2 arising from the cross vein halfway between M! and M 3 , often 

 weak, the cross veins both weak. M, of hind wing as in fore wing; humeral lost 

 in our species; anals as in the Pieridae. Egg flat. Larva slug-like with retrac- 

 tile head, and fine secondary hair. Pupa short and rounded, closely girt. 



Family 58. Erycinidae. Fore leg quite reduced and bruslilike in male; with- 

 out claws or spines, with tibia expanded in a spine beyond articulation of tarsus; 

 normal in female; head as in the Lycaenidae; venation as in the Lycsenidse, but 

 with humeral vein preserved and our species with costa thickened out to humeral 

 angle. Egg and larva and pupa of our species as in the Lycaenidae. 



Family 59. Nymphalidae. Fore leg reduced and nonfunctional in both sexes 

 (except female of Libythea); head as in Pieridae, front depressed; fore wing in 

 our species with all radials, M x free, M 2 associated with R-stem in both wings; 

 hind wing usually with humeral vein; anals as in the Pieridse. Egg as high as 

 wide, vertically ribbed; larva slender, with spines or fleshy filaments, or forked 

 tail; rarely as in Pieridae; pupa suspended by the tail only, or (in a few Satyrinse) 

 in a slight cocoon. 



