56 Key lo Families of Nort • American Insects. 



wings scaled; venation complete, with the base of the media preserved. 



(Anaphora.) ANAPHORIN^ of the TINEn)^ 



Thorax, at least, scaled or slender, palpi and front and middle tibia; also in 

 the majority of cases; often minute moths with wings tapering at both ends, 65 



65. Hind wing with a well marked anal angle, and rounded or somewhat pointed 



apex, not strongly concave below it; when narrower than fore wings, with 



three well developed anals 7^ ^ I 



Of a different conformation 66 



66. Hind wing tapering toward both base and apex, much narrower than its own 



fringe, fore wing much broader, but also lanceolate 67 



Hind wing of variable size with produced apex, strongly concave below apex, 

 and again produced more or less on the third medial and first cubital, with 

 well marked anal angle. (Gnorimoschema, Ypsolophus [ }'. lifjulellus. 

 Palmer-worm], Sitotroga [S. cerealella, Angumois grain-moth], Phthormiaea 

 [P. operciiMci, Potato- tuber moth], Gelechia) (PI. 9, fig. 209). 



GELECHim^ 



67. Maxillary palpi present and folded in repose 68 



Maxillary palpi obsolete, or three-jointed and porrect 70 



68. Head extremely rough, with bristling vestiture 69 



Head smoothly scaled, except narrowly behind. (Acrolepia) ACROLEPHD.^ 



69. Wing membrane prickly (PI. 9, fig. 200), first branch of the radius in hind wing 



much stronger than the base of the main stem of the radius, and appearing 



as a basal fork of the subcosta (see couplet 82) ADELID.^, part 



Wing membrane not prickly; first branch of radius in hind wing no stronger 

 than the basal portion of the radial stem, well out from the base, connecting 

 the subcosta and radius, which are closely parallel toward the base (see 

 couplet 84) A few TINEID.S 



70. Head very rough and bristly on both vertex and face; second joint of palpus 



with lateral bristles toward tip. (Tenaga.) TINEID.S, part 



Lower part of face, at least, smoothly scaled; palpi without bristles 71 



71. Fore wing with at most four veins, either free or stalked, to the costa from the 



cell; with five or six veins rimning to the inner margin (fifth branch of the 

 radius running to the outer margin (see couplet 90). 



YPONOMEUTID^, part 



Fore wing with five veins running to the costa from the cell, or with only 



three or four to the inner margin (fifth radial running to the costa) 72 



72. Vertex rough-bristled 73 



Vertex smooth-scaled, or with a few erect scales behind 75 



73. Accessory cell (in front of and beyond the discal cell) very large, extending 



nearly halfway to the base of the wing; fore wing with heavy spinules on 

 base of the subcosta and base of the cell. (Tischeria, Coptotriche) (PI. 9. 



fig. 212) TISCHERim^ 



Accessory cell small, or more often absent; wing membrane not prickly. . . .74 



74. Anal vein in fore wing forked at the base; costa of hirxd wing not lobed. (Be- 



deUia.) LYONETICDiE, part 



