28 NOTES ON BRITISH TRICHOPTERA, 



1. L. irroratvs, Stephens, = L. {DesmotauUus) hir- 



sntus, Koleii. (nee Pictet). This is the species 

 described in the "Annual," 1859, p. 87. Dr. 

 Hagen had at that time not seen Pictet's type, and 

 has since discovered that his species is different 

 (vide Entomol. Zeitung, 1861, p. 117). This 

 species may be easily recognized by the deeply 

 emarginate last abdominal segment ; the app. sup. 

 are oval and rather elongate; the app. infer, short 

 and thick, black. Stephens's iri^oratus is probably 

 this species, but the single type is a $ in bad con- 

 dition. The venation agrees with this species. 

 Widely distributed and rather common. 

 h Discoidal cell one and a half times the length of its 

 footstalk. 



2. Sp. dub. Smaller and narrower than the preceding, 



the margin of last segment cut oft straight; app. 

 sup. short and bi'oadly spoon-shaped. Occurs in 

 the Fens, at Willesden, &c. Not uncommon. 



3. Sp. dub. As large as No. 1. Wings scarcely so 



broad, but much more so than the last, with a 

 reddish tinge, and sometimes a tendency to form a 

 fenestrated spot ; the veins of the anastomosis conspi- 

 cuously darker ; coloration not so uniform as in the 

 two last species; margin of last abdominal segment 

 rounded off; app. sup. long, finger-shaped, curved 

 strongly upwards ; app. intermed. long and straight, 

 projecting beyond the app. sup. ; app. infer, very 

 extraordinary, large, pod-shaped, curved upwards, 

 and terminating in an acute point; pale coloured ; 

 between them lies the flattened penis. This may 

 be L. lurichis, Curtis, which I have not now before 

 me; if not, that will be -d fourth species, as it is 



