380 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lis 



of the foretarsiis in this species is twice the length of the second seg- 

 ment. 



Limnephiliis costalis (Banks), new combination 



Asynarchus costalis Banks, 1901, p. 286. 



Anisogamvs costalis, Ross, 1938b, p. 28, fig. 44. [Lectotype designated.] 



This species is related closely to the preceding, and must be trans- 

 ferred to Limnephilus. Ross (1938b) illustrated the genitalia of the 

 type of this species. 



Limnephilus concolor Banks 



Figures 3m,n 

 Limnephilus concolor Banks, 1899, pp. 207-208. 

 Limnephilus concolor. — -Ross, 1938b, p. 35. [Lectotype designated.] 



The lectotype of this species is a female without abdomen, not a 

 male as stated by Ross (193Sb). The accompanying figures were 

 prepared from the female lectoparatype. Other specimens of this 

 species have been seen from California and British Colombia, but no 

 collection has contained males. In all probability this is the female 

 of the species generally called assimilis Banks, but it might be the 

 female of L. productus Banks or L. diversus (Banks). 



Limnephilus bifidus Banks 



Figures 3k,l 

 Limnephilus bifidus Banks, 1908b, p. 263, fig. 11. 

 Limnephilus bifidus. — ^Ross, 1938b, p. 34. [Lectotype designated.] 



Figures are presented of the lectotype female of this species in the 

 hope that they will permit its recognition. In coloration the species 

 is marked in the manner of L. moestus Banks or L. sericeus (Say). 



Limnephilus pollens (Banks) 



Figures 3f-h 

 Zaporata pollens Banks, 1920, p. 342, fig. 105. 



The accompanying figures were prepared from the male type. The 

 second segment of the foretarsus is about % the length of the first 

 segment, and the eighth tergum is produced into a scabrous lobe 

 mesally. I have seen additional series from Southhampton, North- 

 west Territory, and Brooks Lake, Alaska. 



Limnephilus sericeus (Say) 



Phryganea sericea Say, 1824, p. 309. 



Anabolia decepta Banks, 1899, pp. 208-209. [New synonymy.] 



Limnephilus sericeus. — Ross, 1944, p. 192, figs. 655, 644. [Neotype designated.] 



The male type of decepta was studied and found to be the same as 



sericeus (Say). 



