THE CANADIAN ENTOMOLOGIST 257 



Mid til)ia|[with()ut short bristle above the anterodorsal one; thorax 

 usually without presutural acrostichals ambi^na Meigen. 



Hydrophoria alaskensis, sp. n. 



Male and Female. — Thorax indistinctly trivittate. Abdomen with distinct 

 dorsocentral \itta. Legs black. Wines slightly brownish in basal cells. 

 Calyptra* white. Halteres \ellow. 



Male.- — Narrowest part of frons about one-tenth of the head-width; 

 parafacial at base of antenna^ at least as wide as third antennal segment; longest 

 hairs on arista about twice the basal diameter of arista; cheek about one-fourth 

 as high as eye. Presutural acrostichals weak. Abdomen vvith very long bristles 

 on sides of third tergite, some of which extend to or beyond apex of abdomen. 

 Fore tibia with one anterodorsal and one posterior bristle at middle; mid tibia 

 with two anteroventral, one or two anterodorsal, and four posterior bristles; 

 hind tibia with four or five antero\entral, an uneven series on anterodorsal, 

 and three posterodorsal bristles, and a few weak posterior setulae. 



Female. — Eyes separated by about one-third of the head-width ; interfrontalia 

 with a pair of cruciate bristles. 



Length 5 mm. 



Type.— St. George Island Behring Straits, June 8, 1914. Allotype and 72 

 paratypes. same locality, June 10-25, 1914, (G. D. Hanna). Paratypes, 

 specim.ens. St. Paul Island, Alaska. August, 1010, and three specimens, Pribilof 

 Islands. Alaska. August, 1910, ^H Heath). 



The specimens from St. George Island are in the collection of the United 

 States Bureau of Biological Survey, those from the other localities are in the 

 collection of the University of California. 



The description of this species was written about six years ago from a 

 report of the insects of the Pribilof Islands which has not yet appeared in print, 

 and it is now included to make as complete as possible the synopsis in this 

 paper. 



THE PEA MOTH A NEW SPECIES. 

 By Carl Heinrich. 



Washington, D. C. 



Laspeyresia novimundi, n. sp. 



Palpi, face, head and base of patagiae dirty, whitish ochreous. Thorax dark 

 lead gray. Fore wings dark greyish fuscous with a leaden gloss and in apical 

 third a faint red brown suffusion; on costa from middle to ape.x six short white 

 geminate dashes inwardly margined by black; from the first of these extends 

 a lead bar joining and forming with the inner vertical bar of ocellus a narrow 

 glossy and fairly distinct, angulate fascia; from the third geminate dash a similar 

 and parallel leaden streak runs toward but does not quite meet the outer vertical 

 bar of the ocellus; between the two a thin irregular line of black scales; ocellus 

 with four short, narrow, longitudinal lines, bordered on inner and outer sides 

 by a vertical bar of semi-lustrous lead coloured scales; cilia concolorous with 

 wing. Hind wing dark brown, somewhat paler toward base; cilia* pale brown 

 at their ba.se shading to white beyond. Underside of fore and hind wings a 



Xovembpr. 1920 



