260 WILLIAM T. M. FORBES 



9. Hind wing hardly as broad as fore wing. 



10. R and M! long-stalked 1. Symmoca. 



10. R and M t connate or approximate; M 2 and M 3 very widely 

 separated at margin 13. Duvita .(conclusella) . 



Key to known genera 



Larva (Fracker) 

 1. No prolegs. 

 2. Body swollen and strongly tapering to ends (in burdock heads). 



30. Metzneria. 



2. Body nearly cylindrical (on dried grain) 29. Sitotroga. 



1. Prolegs present. 



2. A complete circle of hooks. 



3. Seta iii of eighth segment of abdomen in front of spiracle (rarely obliquely 



above it) ; setse large, body striped. 

 4; Seventh and eighth segments of abdomen both with setae ii farther 



from mid-dorsal line (and from its mate), than i 17. Arogalea. 



4. Seventh segment of abdomen with seta ii closer to mid-dorsal line than 



i, eighth segment normal. 



5. Triangle formed by fourth, lower, and posterior ocelli, with a right 

 angle at the fourth; pattern wholly of transverse stripes. 



18. Telphusa. 



5. Triangle formed by the three lower ocelli with an acute angle at 

 fourth; the posterior as near the lower as the fourth; pattern 

 usually partly or wholly of longitudinal stripes. 



24. Recurvaria, 2. Gelechia. 

 3. Seta iii of eighth segment of abdomen above, usually directly above 



spiracle; body pale, not striped 5. Gnorimoschema, 4. Phthorimoea. 



2. Two transverse bands of hooks, spiracle of eighth abdominal segment very 

 large 9. Dichomeris. 



Key to the genera 

 Known pupce (Mosher) 



1. Body-setae strong, often as long as a segment, and truncate at tip; second, 

 third, and fourth segments of abdomen each with a subdorsal projection 

 at its anterior edge and edged in front with a fringe of whitish hairs; and 

 behind this with a prominent hump tipped with a similar fringe of setae. 

 Clypeal suture strongly curved forward; cremaster always present. 

 2. Movable segments of abdomen each with a pit with chitinized edges, on 



mid-dorsal line at front edge 8. Trichotaphe (flavocostella) . 



2. No such pit; a deeply punctate band, followed by a groove, a band of short 



spines, and a strong ridge 9. Dichomeris. 



1. Body setse not modified; second to fourth segments not as described in the 



alternative. 

 2. Pupa densely covered with white setae. 



3. Maxillary palpi reaching tongue, antennae broadly in contact on middle 

 line; cremaster short and blunt, with hooked setae at tip. .5. Anacampsis. 

 3. Maxillary palpi not reaching tongue; antennae meeting at a point only; 

 cremaster sharply curved at tip, with spines on sides. 



21. Aristotelia (salicifungiella) . 



