94 THE CANADIAN ENTOMOLOGIST. 



The L. suhfusciis described by Ulmer is apparently identical 

 with L. fuscovittatus, which was overlooked by him. The original 

 description of this species, which is not a bad one and is accom- 

 panied by a figure, cannot be considered unrecognizable, though 

 written in the Japanese language, for the latter is certainly not to 

 be regarded as unintelligible by the workers of the western world. 

 I was therefore compelled to make siibfuscus a synonym oi fuscovit- 

 tatus. 



Habitat — Hondo (Tokyo and Gifu). 



Time of appearance — October, April — It possibly passes winter 

 in the imago state. 



7, Limnophilus affinis Curtis. 



Limnephilus affinis Curtis, Phil. Mag., IV, p. 123 (1834). 



Limnephilus stigmaticiis Kolenati var. (?) affinis Walker, 

 Cat. Brit. Mus. Neuropt., I, p. 27 (1852). 



Limnophilus affinis MacLachlan, Rev. Syn. Trichopt. Europ. 

 Fauna, p. 82, pi. IX, fig. 8 (1875); Matsumura, Thous. Ins. Jap., 

 I, p. 170, pi. XII, fig. 9, 9 (1904); Matsumura, Journ. Coll. Agr. 

 Tohoku Imp. Univ., IV, p. 16 (1911). 



Several specimens from Sapporo (H. Okamoto coll.), Gifu 

 (S. Yamamura coll.), Uwajima, Prov. lyo (Arakawa coll.) are 

 in my collection. I have compared these with others from Europe 

 (I am indebted to Mr. E. Petersen for several European specimens 

 of this species) without discovering any difference that appears to 

 be specific. The Japanese form is somewhat larger and occasion- 

 ally has an oblique hyaline band on the disk of the forewing. 



Distribution — ^Japan, Saghalien, Siberia, Europe. 



Time of appearance — March and April. 



8. Limnophilus amurensis Ulmer. 



Limnophilus amurensis Ulmer— Stett. Ent. Zeit., Jg. 66, p. 8, 

 taf. I, figs. 4 and 5 (1905); Ulmer, Cat. Coll. Zool. Selys, VI (1), 

 p. 19, figs. 28, 29, taf. I, fig. 5 (1907); Ulmer, Deutch. Ent. Zeit., 

 p. 341 (1908). 



Habitat — -Hokkaido (Sapporo). Amurland. 



Time of appearance — Unknown. 



