Vol. xxiii] ENTOMOLOGICAL NEWS I/ 



transverse blotch. Last segment lighter, without markings, posterior 

 margin with three short hairs on each side of the middle; scattered 

 hairs of variable size on dorsum. 



Menopon corporosum Kellogg and Kuwana. 

 One specimen from Arcnaria inter pres, Norton Island, and 

 two from Phalaropus lobatus; same locality. The last two are 

 undoubtedly stragglers. 



New Oregon Trichoptera. 



By ANNIE LAURA HILL-GRIFFIN, Payette, Idaho. 



(Plates III and IV.) 



In preparing a thesis on the biology of certain Trichoptera, 

 completed June, 1911, I sent a number of specimens to Dr. C. 

 Betten, of Lake Forest, Illinois, to be identified. 



Six of the species submitted to Dr. Betten turned out to be 

 new or probably new. One represented a new genus. It 

 has been a great disappointment, that of four of these new 

 species, there was not enough material to describe, in some 

 cases only one imperfect specimen being in the collection. This 

 was the case with the Psychomyid which represents the new 

 genus. This was collected by myself, in October, 1908, at 

 Crystal Lake, with five others of different species. 



The list of new Trichoptera is as follows : 



Limnophilidae. Grammataulius bettcnii, n. sp. 



Sericostomatidae. Atomyia, n. sp. 



Leptoceridae. Mystacides alafimbriata, n. sp. 



Psychomyidae. n. g. n. sp. 



Rhyacophilidae. Glossosoma, n. sp. Glossosonia, probably 

 new. 



The collection contained enough specimens of two of these 

 species so that descriptions could be made. The first one, a 

 Crammataitlins, I have given the name of bettcnii in recog- 

 nition of the kind assistance given me in the determination 

 of specimens by Dr. Cornelius Betten. The second, a Lep- 

 tocerid, has been given the descriptive name alafimbriata be- 

 cause of the long, soft black fringe upon the outer and inner 

 margins of the hind wings. 



