26 U. S. NATIONAL MUSEUM BULLETIN 216 



6. Chorinaeus constrictus Davis 



Figure 178,g 



Chorinaeus constrictus Davis, 1897, Trans. Amer. Ent. Soc, vol. 24, p. 209; 9 • 

 Type: 9, Franconia, N. H. (Philadelphia). 



Front wing 3.0 to 3.8 mm. long; face about 1.2 as high as mouth 

 is wide in male, about 0.95 as high in female; central 0.6 of clypeal 

 margin straight; mandible about 2.1 as long as wide, its upper tooth 

 much larger than its lower tooth, its outer face with rather coarse 

 punctures; flagellum with about 29 segments in male, with about 

 25 segments in female ; metapleurum with a few hairs on its upper 0.12 ; 

 front spur of middle tibia about 0.70 as long as hind spur; second 

 segment of middle tarsus about 1.6 as long as wide in male, about 1.0 

 as long as wide in female; second tergite with a longitudinal carina 

 just mesad of spiracle in its basal half, its punctures of moderate size, 

 strong, and rather close, between the punctures with a strong tendency 

 to longitudinal wrinkling, especially in the male; apex of penis as in 

 Chorinaeus funebris, without setae. 



Male: Black. Face, lower lateral part of frons (extending to, or 

 truncate below middle of eye emargination) , cheek, temple next to 

 cheek, under side of scape and pedicel, mouth parts, tegula, and legs 

 except as noted below, pale yellow; femora fulvous except at apex; 

 hind coxa fulvous except at apex; hind tibia beyond its basal 0.2 

 fulvous, weakly infuscate dorsad; flagellum light brown below, dark 

 brown above; apical part of tegula fulvous. 



Female: Black. Face, lower lateral part of frons to near or just 

 above center of eye emargination, cheek, temple next to cheek, under 

 side of scape, mouth parts, front and middle coxae, all trochanters, 

 apex of femora, basal 0.2 of tibiae, and basal half of tarsi, pale yellow; 

 rest of legs fulvous and the fore and middle coxae tinged with fulvous; 

 tegula yellow, the apical half ferruginous. 



Specimens: 9, Atlanta, Ga., May 27, 1941, P. W. Fattig (Wash- 

 ington). 9, Bowie, Md., June 24, 1945, H. and M. Townes (Townes). 

 cf, Takoma Park, Md., July 1, 1943, H. and M. Townes (Townes). 

 9 (type), Franconia, N. H., A. T. Slosson (Philadelphia). 9, Oneonta, 

 N. Y., Aug. 24. 1935, H. Townes (Townes). 9, Mount Pisgah at 

 5,500 ft., N. C, June 25, 1951, II. and A. Howden (Townes). 5o\ 

 19, collected flying over large Hypericum bushes in meadow, Galax, 

 Va., Aug. 29, 1955, H. and M. Townes (Townes). d\ Gatlinburg, 

 Tenn., Aug. 22, 1950, G. S. Walley (Ottawa). 



7. Chorinaeus funebris (Gravenhorst) 



Front wing 2.9 to 5.4 mm. long; face about 0.90 as high as width of 

 mouth in male, about 0.83 as high as width of mouth in female, but 



