188 Journal New York Entomological Society. [Voi. x. 



A male specimen received from Mr. Charles Robertson. Type 

 No. 6652, U. S. N. M. 



Arctobiella, gen. no\ . 



Near Eusip/iona but llie proboscis is short, robust, not geniculate, the third and 

 fourth veins nearly parallel, etc. Head somewhat hemispherical, front flat, the 

 portion below the ocelli over twice as long as wide, rather densely haired, bristles of 

 head and body scarcely stouter than the hairs, face concave, vibrissa; not differentiated 

 from the adjacent hairs ; antennas about one third as long as the head, the third joint 

 orbicular, slightly longer than the second ; arista bare ; eyes densely haired ; palpi 

 clavate, auxiliary vein extending close to the first but separated from the latter before 

 its apex and ending in the costa, hind crossveiii transverse, costa not incised, costal 

 vein reaches apex of the fourth ; sixth vein obliterated far before reaching the wing- 

 margin, anal and second basal cells present but small. 



Type, the following species : 



Arctobiella obscura, sp. no\ . 



Black, including the halteres ; cheeks about one sixth as wide as the eye height ; 

 body opaque, somewhat velvety, mesonotum and pleura rather densely haired, 

 scutellum bearing a marginal row of bristly hairs, abdomen greatly depressed, less 

 than twice as long as wide ; legs short and rather robust ; tibiae without bristles ; wings 

 pale brownish, small crossvein near middle of discal cell. Length, 4 mm. 



Habitat. — Laggan, British Columbia. 



A single specimen collected by Prof. H. F. Wickham. Type 

 No. 6653, U. S. N. M. 



Desmometopa luteola, sp. nov. 



Yellow, the arista and bristles black ; wings hyaline, third and fourth veins 

 nearly parallel, last section of fifth vein less than one fourth as long as the preceding 

 section, small crossvein near two-thirds length of discal cell. Length, nearly 2 mm. 



Habitat. — Williams, Arizona. 



A single specimen collected June 30 by Mr. H. S. Barber. Type 

 No. 6654, U. S. N. M. 



Agromyza picta, sp. nov. 



Black, the proboscis, sides and posterior part of mesonotum, scutellum, upper 

 half of pleura, halteres, and abdomen except the last two segments and middle of the 

 preceding, yellow ; body polished, four pairs of dorsocentral bristles, the anterior 

 pair in front of the suture, the bristly hairs between them not disposed in rows, a 

 large space in front of scutellum destitute of hairs ; wings hyaline, faintly tinged with 

 smoky brown along the costa, last section of fifth vein slightly shorter than the pre- 

 ceding section. Length, 3 mm. 



Habitat. — Frontera, Tabasco, Mexico. 



A single specimen collected March 5 by Mr. C. H. T. Townsend. 

 Type No. 6655, U. S. N. M. 



