LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 39 



obtect but almost always with distinct maxillary palpi; prac- 

 tically never progressing from the cocoon. Moth normally 

 with firmly and finely scaled wings, with ample anal region 

 in hind wing; usually with three anals in hind wing, but 

 with 1st A almost always lost in fore wing; maxillary palpi 

 of porrect type; tongue scaled at base; no accessory cell. 



Superfamily Pyralidoidea. Characters as just stated for the Pyra- 

 loids. 



Family 32. Thyrididae. Wings heavy and close -scaled, 1st A absent in both 

 wings, all radials separate (variously stalked in exotic species), Re to outer mar- 

 gin; hind wing with Sc and R closely parallel beyond end of cell; maxillary palpi 

 obsolete, pilifers large. Larva with two setae on vii of mesothorax, and i higher 

 than ii on ninth abdominal segment. 



Family 33. Pyralididse. Wings entire, without special scaling along the veins 

 beneath; fore wing with 1st A usually lost. Hind wing with Sc and R very 

 closely approximate, or more often fused, beyond end of cell. Larva with primary 

 setae only, with normal prolegs, usually bearing biordinal or triordinal hooks, 

 pupa with seventh abdominal segment fixed in both eexes, usually smooth; with 

 a deep furrow between ninth and tenth abdominal segments in the few species 

 without maxillary palpi. 



Family 34. Pterophoridae. A series of specialized spatulate scales along Cu and 

 its forks in hind wing; our species with fore wing divided into two, and hind 

 wing into three, feathers; 1st A preserved. Larva usually with secondary or 

 tufted hair, with very long, stem-like prolegs with expanded plantse. Pupa usually 

 exposed, suspended by the tail, often very hairy and angular; seventh abdominal 

 segment movable in male; without maxillary palpi or groove between ninth and 

 tenth abdominal segments. Cremaster supplemented by a second tuft of spines 

 on venter. 



Family 35. Orneodidse. Both wings deeply cleft into six feathers. Only one 

 anal preserved (1st A?). Larva with uniordinal hooks on prolegs and a single 

 seta vii on mesothorax. Pupa with maxillary palpi concealed; seventh segment 

 fixed. .Cremaster simple. 



JJJ" Macros." Larvce with only two seta on prespiracular wart, 

 with iv and v separate except when there is dense secondary 

 hair; with oval spiracles, and often with dense tufted or 

 secondary hair. Usually external feeders. Pupa obtect, 

 progressing only in the Citheroniidae, without distinct max- 

 illary palpi or pilifers; moth broad-winged, with 1st A rudi- 

 mentary or absent in all wings, base of M lost, maxillary 

 palpi of porrect type and almost always rudimentary or 

 lost, tongue not scaled; wings usually firmly scaled, with 

 narrow fringes; accessory cell when present separated by a 

 fully developed vein from discal. 



Superfamily Uranioidea. Larva with simple hair ; setae i and ii sepa- 

 rate, iv and v both well below spiracle, and tending to approximate 



