THE CANADIAN ENTOMOLOGIST 93 



band marked with large fuscous spots, several small fuscous spots 

 in the area between radius and its sector; a large hyaline mark, 

 with a few fuscous spots in, at the outside of discal cell; apical, 

 marginal area rather irregularly marked with fuscous. 



Hind-wing hyaline and nearly colourless, slightly tinged with 

 yellowish at apex. 



Abdomen fuscous black, hind margin of most segments some- 

 what paler. Female with two slender, hairy processes at the apex 

 of the abdomen. 



Male unknown. 



Length of body 13 mm.; fore-wing 16 mm.; hind-wing 14 mm. 



The type is a single female in my collection. It was captured 

 by Mr. Arakawa at Uwajima, Prov. lyo, Shikoku, in May, 1913. 



Genus Limnophilus Leach. 



5, Limnophilus correptus MacLachlan. 



Limfiophilus correptus MacLachlan, Rev. Syn. Trichopt. Eur. 

 Fauna. Suppl. II, p. 18, pi. LIII, fig. 3 (1880); MacLachlan, First 

 add. Suppl., p. 5 (1884); Matsumura, Thous. Ins. Jap., I, p. 171, 

 pi. XII, fig. 10, 9 (1904); Ulmer, Deutch. Ent. Zeit., p. 341 (1908). 



Limnophilus horealis Ulmer, Cat. Coll. Zool. Selys, VI (1), 

 p. 17, figs. 26, 27 (1907), nee Zetterstedt. 



(?) Limnophilus borealis Ulmer, Deutch. Ent. Zeit., p. 341 

 (1908). The Japanese form recorded by LUmer as L. borealis can 

 not be that species. He could not have examined a specimen in 

 good condition, or he would never have considered the form identical 

 with borealis, from which it is in reality quite distinct. 



The wing-markings of this species vary to a remarkable extent. 



Habitat — Hokkaido (Sapporo, Hokodate) ; Shikoku (Uwajima, 

 prov. lyo). Outside of Japan — China, Amurland. 



Time of appearance — Unknown. 



6. Limnophilus fuscovittatus Matsumura. 



Limnophilus fuscovittatus Matsumura, Thous. Ins, Jap., I, 

 p. 171, pi. XII, fig. 13, 9 (1904); Matsumura, Syst. Ent. (Konchu 

 bunruigaku), I, p. 190 (1907). 



Limnophilus subfuscus Ulmer — Cat. Coll. Zool. Selys, VI (1), 

 p. 20, figs. 32-35 (1907); Ulmer, Deutch. Ent. Zeit., p. 341 (1908). 



