LIMNOPHILUS. 263 



28. L. plaga. 



Limnephilus plaga Wslk..] Catal, 35,53. 



Testaceous, with pale hair, and longer black pile ; anterior 

 wings pale testaceous, a large, subquadrate, fuscous spot behind 

 the middle ; the apex subreticulated with fuscous, and with two 

 patches of fuscous. (From the description of Walker.) 



Length to tip of wings 13 millim. Alar expanse 21 millim. 



Ilab. Nova Scotia (Redman). 



Allied to L. trimaculata ; — a most beautiful species. 



Goniotaidius sitchensis Kolenati, Wiener Ent. Monatschr. 1859, 

 p. 17, from North America is spoken of, but only by name ; it is 

 unknown to me. 



Sub-Genus Desmotaulius Kolenati. 



29. L. bimaculatus. 



Limnephilus bimaculatus Walk.l Catal. 30, 40. . 



Testaceous, with pale hair, and longer, black pile ; antennae fer- 

 ruginous; thorax bivittated with piceous; anterior wings obso- 

 letely irrorated with pale, especially at the base ; posterior wings 

 whitish, (From the description of Walker.) 



Length to tip of wings 19 millim. Alar expanse 34 millim. 



Hab. St. Martin's Falls, Albany River, Hudson's Bay (Barns- 

 ton). 



It is allied to Z. famigattis Germar, but the wings are shorter. 



30. L. planifrons! 



Desmotaulius plani/rons Kol. Trich. 56, 1 ; Walk. Catal. 36, 56. 



Fuscous, with luteous hairs; antennse brown, annulated with 

 luteous ; head with two tubercles posteriorly, prothorax, and a 

 ~ double stripe upon the metathorax, luteous; feet luteous, with 

 black spines; anterior wings broader, luteo-fuscous, with fuscous 

 hair, obsoletely marked with luteous; at the posterior margin the 

 veins elevated fuscous ; posterior wings luteo-hyaline. 



Length to tip of wings 14 millim. Alar expanse 25 millim. 



Ifab. Greenland; Labrador (Collection of Hagen). 



