38 WILLIAM T. M. FORBES 



Cu, arising close to angle of cell; R and M t usually separate in hind wing; 2d A 

 very strongly forked at base. Egg of upright type; larva with front acute, 

 reaching well toward, but not to, vertex; alpha of prothorax farther from mid- 

 dorsal line than beta, abdomen with i nearer the middle line than ii on eighth 

 segment, iv and v close together, legs with a single circle of hooks. Pupa incom- 

 plete, with only anterior rows of line spines on the segments, cremaster rudimen- 

 tary; maxillary palpi, labial palpi and fore femora exposed; mesothorax extend- 

 ing back in a lobe, nearly cutting the metathorax in two. 



Family 26. Heliodinidae. Palpi very short, drooping (medium sized in Eucle- 

 mensia) ; maxillary palpi minute, porrect; tongue strong; tarsi with more or 

 less distinct whorls of bristles, the tibiae also often with stiff bristles, the hind 

 legs displayed at rest. Larvae various, not well known, pupae hardly known. 



Family 27. JEgeriidae. Antenna; often fusiform, normally with a tuft of bristles 

 at apex; wings strong, very narrow, usually more or less transparent. Fore 

 wing with R running to outer margin, anal region much reduced, hind wing 

 with costa bearing a backward-directed keel, with a row of spines interlocking 

 with a row on inner margin of fore wing. Larvae borers, with high front, hooks 

 of prolegs uniordinal in two transverse rows, iv and v close together, and last 

 spiracle higher than the others; pupa incomplete. 



Superfamily Tortricoidea. Larva with setae iv and v approximate, 

 pupa incomplete, typical, spined dorsally for progression; moth nor- 

 mally with R 5 running to outer margin, free in lower forms; stalked 

 with R 4 in higher forms, hind wing with Sc and R as in the preceding 

 superfamily, R and M x usually approximate; head and body usually 

 with rough vestiture, that on the head shorter than in the Tineidaa ; palpi 

 rough and more or less triangular or porrect; maxillary palpi minute. 



Family 28. Tortricidae. Fore wing with 1st A preserved, Cu 2 arising less than 

 three -fourths way out on cell; larva with biordinal or triordinal hooks; abdomen 

 of pupa with a distinct cremaster, or with setae on the anal rise. 



Family 29. Phaloniidae. Both wings without 1st A; Cu 2 arising more than 

 three-fourths way out in cell; hind wing with M x preserved, usually stalked with 

 R; palpi alike in both sexes. Larva with uniordinal hooks; pupa with end of 

 abdomen obliquely truncate, with irregular spines, without cremaster. 



Family 30. Carposinidas. Both wings without 1st A; Cu 2 arising more than 

 three -fourths way out; hind wing with Mj and M 3 completely lost; palpi much 

 longer in female than in male. Larva a fruit borer with a complete circle of 

 uniordinal hooks and last spiracles dorsal. 



Family 31. Cossidae. Large, stout, heavy moths, with small palpi, rudimentary 

 tongue, partly hairy vestiture, and short tibial spurs. Wing veins heavy, includ- 

 ing R^JJ and the dividing veins in the cell, 1st A strong and tubular, from near 

 base. Frenulum sometimes obsolete. Egg sometimes upright; larva stout and 

 strong, with mandibles heavy and turned forward, usually with multiordinal 

 hooks in a complete circle; setae ii as far apart on ninth abdominal as on other 

 segments. Pupa very heavy, with extremely short maxillae which meet on mid- 

 dle line; no maxillary palpi, and no cremaster. 



$$" Pyraloids." Larva with only two setae, on prespiracular 

 wart, with iv and v approximated, rarely with secondary or 

 tufted hair (in which case the spiracles are round}; pupa 



