224 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



on the fourth segment greatly reduced; fifth segment with a rather narrow 

 yellow triangle (PI. 14, fi.g. 4) ; venter black, thickly black pilose with 

 rather narrow clay yellow posterior borders. 



Femora black; tibiae and tarsi reddish, the tibiae darkened near middle 

 above ; pile of femora black, that on tibiae and tarsi short and reddish ; 

 wings infuscated, the veins brown. 



Holotype (No. 466), male, collected at Empire, Oregon. 

 June 27, 1916, in Museum of the California Academy of 

 Sciences. 



Specimens from Empire and South Inlet, Coos County, June 

 27, 1916. (Miss Rhodes, collector.) Several specimens were 

 bred from barnyard manure. Some of the pupae are in vials of 

 alcohol in the Corvallis Agricultural College Collection. 



This species is very near barbata Lw. but the yellow abdom- 

 inal markings are very much smaller, wings more deeply in- 

 fuscated, occiput black above, etc. 



5. Eclimus celer Cole, new species 



Male : Length 12 mm. Body entirely black ; face shining black with 

 black pile ; pile of occiput w^'hite, that beneath head black ; third antennal 

 joint narrow, slightly longer than first; the first two joints black pilose; 

 proboscis scarcely twice the length of the head ; palpi slender, shorter than 

 the antennae. 



Thorax and scutellum shining black ; dorsum of thorax muricate and 

 covered with short, rather curly w*hite pile which gives the thorax a marked 

 gray appearance to the naked eye ; pleura shining, sparsely black pilose ; 

 knob of halteres black, the stem paler. 



Abdomen dull black, with peculiar little dents on the dorsum ; a pair on 

 each side and a widely separated pair anterior to these, one on each side ; 

 these little line-like impressions absent on the first and last segments ; the 

 pile on the first five segments white, on the last segments black; venter 

 with black pile. On the posterior margins of the first five segments there 

 is a fringe of more reclinate white pile. 



Legs black, the anterior four femora with sparse black pile below ; hind 

 femora with four small brisitles below on the outer half; wings infuscated, 

 blackish along the costal margin, the anal cell paler, the axillary cell 

 almost hyaline ; wing very similar to that of E. magnus, the darkened in- 

 dentation above the anterior cross-vein being present; wing glossy and 

 shining as in E. magnus. 



Holotype (No. 467), male, collected at Parkdale, Ore., 

 June 18, 1917 (F. R. Cole), in the Museum of the California 

 Academy of Sciences. 



Paratype in the author's collection, taken at the same time. 

 The head of this species is verv similar to that of E. magnus 

 (Fig. 5a). 



