494 



U. S. NATIONAL MUSEUM BULLETIN 216 



PART 3 



Tegula white; swollen part of female front tibia white, brown at apex and 

 beneath; range: Nova Scotia, Quebec, and Ontario to North Carolina. 



2c. niger niger Cresson 



2a. Echthrus niger rufopedibus Harrington, new status 



Echthrus rufopedibus Harrington, 1893, Canadian Ent., vol. 25, p. 31; 9 . Type: 

 ?, Montreal, Que. (Ottawa). 



Black. Mandible ferruginous; palpi and tegula brown; labrum 

 light fulvous; front of scape yellowish or fulvous in male, dusky 

 fulvous in female; flagellum of female with a white band covering 

 about 3.5 segments; front and middle legs, hind coxa, hind trochanters, 

 and hind femur fulvous, the apex of hind femm* narrowly infuscate; 

 hind tibia and tarsus black or piceous; wings subhyaline. 



Specimens: cf , Edmonton, Alta., May 20, 1924, G. Salt (Washmg- 

 ton). 9, Waterton Lakes, Alta., June 28, 1929, J. H. Pepper (Ottawa). 

 9, Fort Nelson, B.C., June 8, 1948, M. T. Hughes (Ottawa), d", 

 Aweme, Man., June 1, 1917, N. Griddle (Ottawa). 9, Gedar Lake, 

 Man., July 1936, G. T. Brues rGambridge). 9, Houston Go., Minn., 

 May 23, 1936, Robert Gottrell (St. Paul). 9, Itasca Park, Minn., 

 May 30, 1936, A. B. Gurney (St. Paul). 9, Lake Itasca, Minn., 

 June 11 (St. Paul). 9, Sudbury, Ont., 1888 (Ottawa). 



This subspecies ranges from Montreal, Que. to British Golumbia. 



Figure 279. — Localities for 



Echthrus niger rufopedibus. 



2b. Echthrus niger emaculatus, new subspecies 



Male: Black. Labrum white; scape whitish in front; mandible 

 dusky ferruginous; palpi and tegula brown; front and middle femora 

 whitish at apex; front and middle tibiae whitish, blackish below and 

 at apex; legs blackish or piceous except where described as whitish, 

 the hind tibia and tarsus the darkest; wings subhyaUne. 



Female : Black. Mandible partly ferruginous; labrum and band on 

 flagellum covering about 3.5 segments, white; palpi and tegula dark 



