86 



U. S. NATIONAL MUSEUM BULLETIN 209 



Echo, Md.; Apr. 3 in Brazos County, Tex.; Apr. 6 at Forest Grove, 

 Oreg.; Apr. 9 at Ithaca, N. Y.; Apr. 24 at Owego, N. Y.; June 10 at 

 Constance Bay, Ont.; June 11 at Fisher Glen and Leamington, On- 

 tario, and in Lake County, Minn.; June 21 at Chafee, N. Y.; June 24 

 at Lj'^me, Conn.; June 27 at Ithaca, N. Y.; and June 29 in Itasca Park, 

 Minn. Flower records include one collection on blueberry, three on 

 Benzoin aestivale, and one on Prunus serotina. On two occasions 

 specimens were taken at "sugar" put on tree trunks for collecting 

 moths. Adults appear with the first spring flowers and disappear 

 in early summer. The habitat is woods, usually in sun -warmed 

 stream bottoms. The adults run or fly low over the forest floor, and 

 lack of concealing foliage at this early season makes them conspicuous. 

 Soon after the trees are in full leaf they begin to disappear. 



This species occurs in the AUeghenian and Carolinian faunas of 

 the eastern half of the continent, and in the Transition fauna of the 

 Pacific Northwest. Its habitat is woods, the adults being present 

 from early spring to early summer. 



Figure 41. — Localities for Priocnemis nigripes. 



2. Priocnemis (Priocnemissus) nigripes (Cresson), new combination 



Pompilus (Priocnemis) nigripes Cresson, 1865, Proc. Ent. Soc. Philadelphia, 



vol. 4, p. 454, ? . Type: 9 , Colorado (Philadelphia). 

 Priocnemis gomelsa Brimley, 1934, Ent. News, vol. 45, p. 43, 9 . Type: 9 1 



Raleigh, N. C. (Raleigh). 



Male: Forewing 8 to 10 mm. long; clypeus weakly convex, its 

 apex truncate; subgenital plate tongue-shaped, its hau's suberect and 

 about 0.6 as long as the width of the subgenital plate. 



Black. Wings lightly infuscate; most of second tergite, apical half 

 of the first tergite, and basal half of third tergite ferruginous, the rest 

 of theabdomen black. 



Female: Forewing 9 to 12 mm. long. 



