129 



aa. Epicranial suture never present. 



b. Prothoracic femora exposed, but only a very narrow portion, 

 c. Spiracular furrows present on the fifth abdominal segment ; ven- 

 tral surface of head with a prominent transverse ridge extending 

 from about the middle of the glazed eye-piece ; body setae arising 

 from small dark brown or black papillae. .PJiilobia Duponchel. 

 cc. Spiracular furrows never present on the fifth abdominal seg- 

 ment ; ventral surface of head never with a transverse ridge ; 



body setae arising from small pits Sabulodes Guenee. 



bb. Prothoracic femora never exposed, 

 c. Antennae distinctly elevated and covered with five or six rows of 

 small round tubercles; distinct ridges or flanged plates present 

 along both margins of the movable segments, 

 d. Cremaster with the two median caudal spines very much larger 

 than the others ; distinct furrow always present between the 

 ninth and tenth abdominal segments ; color dark brown. 



Nacopliora Hulst. 



dd. Cremaster with the four caudal spines about the same size and 



much larger than the others ; distinct furrow never present 



between the ninth and tenth abdominal segments ; color 



usually white, sometimes partly brown. 



Ennomos Treitschke. 



cc. Antennae elevated but never with distinct rows of tubercles ; 



ridges or flanged plates never present on the movable segments. 



d. Maxillae about two thirds the length of the wings ; prothoracic 



mesothoracic, and metathoracic legs all meeting on the meson 



caudad of the maxillae Xantlwtype Warren. 



dd. Maxillae always more than two thirds the length of the wings ; 



prothoracic and mesothoracic legs never meeting on the 



meson caudad of the maxillae. 



e. Spiracular furrows present on the cephalic margin of the 



fifth abdominal segment, with more or less interrupted 



ridges between ; cremaster with the four caudal setae always 



larger than the others Ania Stephens. 



ee. Spiracular furrows never present on the cephalic margin 

 of the fifth abdominal segment, cremaster with two caudal 

 setae larger than the others Cingilia Walker. 



Group B 



The pupae of this group are easily distinguished by the long bifur- 

 cate projection at the cephalic end of the body, which is covered with 

 hooked setae. There are never spiracular furrows present on the ce- 

 phalic margin of the movable segments. The mesothoracic legs meet on 

 the meson caudad of the maxillae. The body is very slender and never 

 punctate. This group includes the genus Haematopsis. 



