ICHNEUMON-FLIES — GELINAE : MESOSTENINI 391 



of the four median segments and part of the length of the two end 

 segments; epomia rather weak; metapleurum -with coarse, rather close 

 punctm'es, without a juxtacoxa] carina; intercubitus about 0.45 as 

 long as width of radial vein. 



Head black, the face, clypeus, cheek, temple, and broad orbits 

 except at top of eye, pale yellow; mandible pale yellow; palpi pale 

 yellow, antenna fuscous, brownish below, the scape pale brown in 

 front, the flagellum with an incomplete white band that covers about 

 5 segments; thorax yellowish fulvous, the propleurum, central part of 

 pronotum, and prepectus often more or less fuscous; tegula pale 

 fulvous; front and middle legs pale fulvous, their coxae, trochanters, 

 and front side of femora mostly pale yellow, their tarsi darkened 

 apically; hind coxa, trochanters, femur, and tibia fulvous, the apical 

 0.3 ± of the tibia somewhat infuscate; hind tarsus fuscous, the first 

 two segments narrowly light broAvn at base and apex, or the apex of 

 second segment white, the third and fourth segments white or largely 

 white; wings subhyaline; abdomen yellowish fulvous. 



Female: Front wing 2.9 to 6.4 mm. long; clypeus moderately con- 

 vex; cheek about 0.75 as long as basal width of mandible; epomia 

 rather weak; metapleurum with close, adjacent, or partly confluent 

 punctures, not distinctly wrinlded ; apical carina of propodeum strong, 

 sublaterally elevated as a sharp crest, indistinct laterad of the crest. 



Head and body fulvous, the seventh tergite with a white spot; 

 palpi fulvous; antenna fulvous, with an incomplete white band that 

 covers about 5 segments, black distad of the band; legs fulvous; 

 wings tinged with yellowish brown, the front wing with a weak but 

 distinct premedial and postmcdial brown band. 



Specimens (57 cf, 269): From Alabama (Elgin); District of Colum- 

 bia (Washington) ; Georgia (Atlanta) ; Louisiana (Opelousas) ; Mary- 

 land (North Beach and Takoma Park) ; Missouri (Willard) ; North 

 Carolina (Elizabethtown, Raleigh, and Swannanoa) ; South Carolina 

 (Columbia and Greenville) ; Tennessee (Dayton, Gatlinburg, and 

 Knoxville) ; Texas (Browmsville, Galveston, San Antonio, and Vic- 

 toria) ; Virginia (Glencarlyn) ; and Mexico (Puerta de la Goriona in 

 Sierra de la Encantada in Coahuila). 



Collection dates are from late spring to early fall. Unusually early 

 and late dates are: April 11 at Victoria, Tex.; May 4 at San Antonio, 

 Tex.; May 14 at Raleigh, N.C.; September 15 at Raleigh, N.C.; 

 September 16 at Gatlinburg, Tenn.; October 2 at Greenville, S.C.; 

 and October 5 at Willard, Mo. 



We have found the species on low vegetation in overgrown fields 

 and the edges of woods, particularly at the nectaries of Cassia nictitans. 

 On Cassia both sexes but particularly the females have a superficial 



