160 TRICHOPTERA. \ 



H. reciproca, 288, 6, and duhia, 7. Dr. Hagen con- 

 siders to be the same species. 



Philopotamus confusus, 291, 1. Is a Si/ dropsy che, the 



type has no ocelli. 



Polycentropus crassicornis, 292, 2.— The " variety" is a 

 distinct species, smaller, and differing in the form of the 

 appendices. 



Psychomia parva, 294, 2.— The type is almost de- 

 stroyed. Dr. Hagen now thinks that it belongs to the 

 genus Tinodes. 



Chimarrha ohscura, 297, 3.— Perhaps an Agapetus. 



There is an undescribed species of Setodes in the British 

 Museum, which I propose to call Setodts Piffardii, and 

 append the description. 



Setodes PiffardU, n. sp. 

 Ferruginea: antennislongissimis,fuscis, bases versus luteo- 

 annulatis; capite luteo, niveo-piloso ; pedibus ochraceis; 

 alis anticis albidis, strigis transversis geminatis, etnebulis 

 apicem versus, griseis, punctis ad angulum analem nigri- 

 cantibus ; posticis niveis. 

 Long. Corp. 4 lin.; long, anten. 18 lin.; exp. alar. 13 hn. 

 Fernio-inous: antennas very long, the joints in the basal 

 third half vellow and half dark fuscous, the rest altogether 

 fuscous; head yellow, clothed with white hairs; legs pale- 

 ochreous ; anterior wings whitish, with numerous grey, some- 

 what geminated transverse bands, and the apex clouded with 

 o-rey ;''at the anal angle are two or three confluent blackish, 

 spots; apical cilia also blackish; posterior wings unicolorous 

 snowy- white. 



Habitat near Halifax, Nova Scotia; B. Piffard, Esq. 

 AUied to S. exquisita, Walk. ; S. albida, Walk., and S. can^ 

 dida, Hag. (especially to the first), but differs in the trans- 



