ceropalinae: tribe ceropalini 253 



spots or bands on tibiae (smaller and less distinct in the female and 

 often obsolete on the hind tibia of l:>oth sexes), upper side of front tibia 

 and basitarsus of male, middle basitarsus of male except at the apex, a 

 large sublateral subapical spot on first tergite, subapical transverse 

 bands on second to fiftli (ergites (deeply notched sublaterally and often 

 interrupted medially), a large median and a somevv'liat smaller sub- 

 lateral spot on sixth tergite of male, large transverse subapical mark on 

 sixth tergite of fem^ale, and a large subcircular median spot on seventh 

 tergite of male, pale yellow; wings subhyaline; legs beyond coxae pale 

 fulvous except as previously noted as yellow, the extreme bases of 

 segments 2 to 4 of hind tarsus blackish. 



Specimexs: 9, Washington, D. C, Aug. 8, 1946, M. Vogel (Vogel). 

 cf, Atherton, :Mo., July 16, 1922, C. F. Adams (Lawrence), cf, 

 Moorestown, N. J., July 19, 1939, II. and M. Towncs (Townes). 

 2 cf , 1 9, Crabtree Meadows, from foliage near the ground in an 

 opening in mixed hardAvoods, 3,600 ft., Yance}^ County, N. C, Aug. 21 

 and 25, 1950, H., M., and D. Towncs (Townes). 9, Smokemont, 

 2,000 ft., Smoky Mts., N. C, Aug. 24, 1930, N. Banks (Cambridge). 



This species occurs from New Jersey to Georgia and west to Mis- 

 souri. 



4. Ceropales robinsonii Cresson 



Forewing of male 6 to 9 mm. long, of female 7.5 to 1 1 mm. long; frons, 

 mesoscutum, and mesopleuron polished, densely hairy but the hairs not 

 set in distinct punctures, the larger punctures that are present in most 

 other species of the genus absent or very faintl}" indicated; propodeum 

 tumid basally, the basal swelling divided medially by a longitudinal 

 groove that is broadened basally into an impressed triangular area, the 

 rest of the propodeum behind almost flat; hind face of propodeum 

 near the abdominal attachment with irregular wrinldes that in general 

 converge toward the abdominal attachment; male subgenital plate 

 broadly lanceolate mth a blunt tip, fulvous with the margin a little 

 paler. The details of the subgenital plate are specifically diagnostic. 



Head and thorax blackish marked with j'ellow; legs and abdomen 

 rufous, with restricted yellow markings; wings SA^bhyaline to dark 

 brown. 



There are two subspecies, distinguishable on color as indicated in 

 their descriptions. One occurs from Massachusetts and Illinois to 

 Florida, the other in Kansas and Texas. 



4a. Ceropales robinsonii robinsonii Cresson 



Ceropales robinsonii Cresson, 1867, Trans. Amer. Ent. Soc, vol. 1, p. 140, c?. 



Type: cf , West Virginia (Philadelphia). 

 Ceropales rufiventris Walsh and Riley, 1869, Amer. Ent., vol. 1, pp. 136, 163, 



cf, 9. Types: cf, 9 ?, Illinois (destroyed) . 



347756—57 17 



