THE CANADIAN ENTOMOLOGIST. 285 



NEW CANADIAN AND ALASKAN MUSCOIDEA. 



BY CHARLES H. T. TOWNSEND, 

 Bureau of .Entomology, Washington, D. C. 



This paper presents descriptions of some British Columbian 

 forms, received for determination at the Bureau of Entomology, 

 U. S. Department of Agriculture, sent by Mr. F. Kermode, Director 

 of the Provincial Museum at Victoria, B. C. To these are added 

 descriptions of a few new forms, represented by material in the U. S. 

 National Museum collection, from British Columbia, Saskatchewan 

 and Alaska, collected by Messrs. Currie, Cockle, Knab and Kincaid 



Family CallirhoidcE . 

 Alaskophyto new genus. 



Genotype — Muscopteryx obscura Coquillett, 1902, Proc. U. S. 

 Nat. Mus., XXV, 116.— St. Paul Island, Alaska. 



May be distinguished from other members of the Phyto groilp 

 as follows: Male — Vertex and posterior part of front one-ninth or 

 one-tenth of head width. Ocellars rather strong; vibrissas strong 

 and decussate, curved, single, inserted even with oral margin; 

 second and third antennal joints about equal, arista thickened on 

 basal fourth or less; front but feebly prominent, cheeks over one- 

 half eye-height; facial profile much shorter than frontal; palpi 

 stout-filiform. Long decussate apical pair of scutellars and two 

 laterals. Macrochaetse of abdomen weak, rather thickly placed, 

 interspersed wath hair, venter more hairy. Claws elongate. Wings 

 narrow. Apical cell narrowly open or closed, ending slightly 

 before wing-tip; cubitus very broadly open, no stump or wrinkle, 

 apical cross-\'ein straight. Abdomen same width as thorax, elongate. 



Family Miltogrammidce. 

 Arabiopsis new genus. 



Genotype — Arabiopsis cocklei Townsend, new species. 



Allied to Eiiaraba Townsend, from which it differs chiefly as 

 follows: Head subrectangular in profile, the lower border about 

 three-fourths as long as upper, the epistoma distinctly produced; 

 facial depression shorter, facial profile slightly concave, third 

 antennal joint of male shorter and broader, arista slender on distal 

 third or more; parafacials naked below, with a patch of hairs above 



Scfifmber. 101 j 



