498 



U. S. NATIONAL MUSEUM BULLETIN 216 



PART 3 



Figures 282-284. — Localities: 282 (left), Echthrus adillae nigriventris; 283 (center), 

 E. a. semiruher; 284 (right), E. a. adillae. 



3b. Echthrus adillae semiruher, new subspecies 



Black. Labriim stramineous; mandible with a ferruginous stain; 

 palpi dark brown; female flagellum with a white band that covers 

 about 3 segments; tegula blackish; coxae and trochanters black; 

 femora brown to fulvous, if brown then pale brown or fulvous toward 

 apices; front and middle tibiae and tarsi brownish fulvous; hind tibia 

 and basitarsus fuscous brown, the apex of basitarsus stramineous; 

 segments 2-4 of hind tarsus yellowish; fifth segment of hind tarsus 

 brownish fulvous; wings weakly infuscate; abdomen ferruginous, the 

 first segment black and basal part of second segment often fuscous. 



Type: 9, Easton, Wash. (Washington, USNM 63836). 



Paratypes: 9, Mount Hood, Oreg., 5,000 to 6,000 ft., July 1, 1927, 

 E. C Van Dyke (San Francisco), d^, Wallowa Lake, Aneroid Lake 

 Trail, 5,500 to 6,500 ft., Oreg., July 22, 1929, H. A. Scullen (Wash- 

 ington). 9, West Khckitat, Mount Adams, 3,500 ft., Wash., July 1, 

 1925, L. A. Morley (Washington). 



This subspecies occurs in Washington and Oregon. 



3c. Echthrus adillae adillae Davis 



Echthrus adillae Davis, 1895, Trans. Amer. Ent. Soc, vol. 22, p. 32; d^. Type: 

 cf , Seattle?, Wash. (Philadelphia). 



Black. Mandible with a ferruginous tinge; labrum pale fulvous; 

 palpi and tegula blackish brown ; female flagellum with a whitish band 

 that covers about 3.5 segments; legs blacldsh brown or blackish, the 

 apices of femora and tibiae and tarsi brown, the front and middle tibiae 

 and tarsi of male pale brown; front side of inflated part of female 

 front tibia, apex of hind basitarsus, segments 2 through 4 of hind tar- 

 sus, and usually segments 2 through 4 of middle tarsus, stramineous; 

 wings subhyaline, faintly infuscate; abdomen black. 



