ALDRICH : DOLICHXIPUS AND HYGROCELEUTHUS. 9 



One male, Kansas (U. K.). 



Resembles D. ovatiis, but has wider face, shorter and weaker cilia 

 of hind femora, and fore tarsi nearly twice as long. 



Dolichopus ovatus Locw. 



A puzzling species. A male from California (U. K. ) may belong 

 to it, but the tibiae are wholly black. From Loew's description it 

 would seem that this is not a great discrepancy. The wings of the 

 specimen in (piestion are narrowed at the base. 



I also doubtfully identify a female from Philadelphia (Aug. 7, 

 Johnson) and one from Brookings, South Dakota, with this species. 



Dolichopus albiciliatus Tvoew. 



Wheeler, Psyche, Miiy. 1890, p. 8:5S (mal(>). 



A female, Dover, N. J., June 23 (Johnson), agrees well with the 

 description except that the wings are brown along the veins to some 

 extent. Another female, no locality, (K. U.), has hyaline wings and 

 agrees well. 



Dolichopus convergens, n. sp. 



Male. Dark green, cilia of inferior orbit white, femora black, hind 

 tibiae black at tip, third and fourth veins of wing convergent at the tip. 

 Face narrow, silvery white; front green, not very shining; antennae 

 black, third jointed rounded, rather large; thorax dark green, shin- 

 ing; pleurae black, a little dusted; tegulae yellow, with black cilia; 

 halteres yellow; abdomen dark shining green, not compressed; hypo- 

 pygium black, its lamellae of moderate length, truncate in front, 

 rather deeply jagged, with the usual black border. Coxae and femora 

 black, trochanters and knees yellow. Fore and middle coxae with a 

 few bristles, and a little black hair and silvery dust on the fore side. 

 Tibiae yellow, the hind ones black on the last fourth and slightly 

 incrassate. Hind tarsi wholly black, anterior ones blackened from 

 the tip of the first joint. Each tibia is about as long as the first 

 three joints of its tarsus. Wings hyaline, narrowed basally; the 

 third and fourth veins converge, and end considerably before the 

 apex, about one third as far apart as the second and third. 



Length 4 mm.; of wing, 3.8 mm. 



Four males, Mt. Hood, Oregon, and one, Washington. 



This species mav be distinguished from albiciliatus and xanthocne- 

 mus by the absence of cilia on the hind femora of the male. 



Dolichopus pachyenemus Loew. 



Seven males and four females, Brookings, S. D. Two bear dates 

 of capture, June 12 and 16. A well marked species, agreeing with 

 description. 



