58 PROC. ENT. SOC. WASH., VOL. 22, NO. 3, MAR., 1920 



it appears somewhat dentate; anterior margin of the scutum with a transverse- 

 carina, two short median ridges anteriorly; scutum shining, with separate 

 setigerous punctures; scutellum subshining, with a few longitudinal wrinkles; 

 top of propodeum with large irregular areas defined by carinae, the median 

 one the largest and trapezoidal in outline; posterior aspect of propodeum 

 foveolate laterally, with a median elliptical-shaped fovea; sides of propodeum 

 smooth, shining; mesoplurae smooth, shining; anterior tarsi strongly flattened;: 

 calcaria of the hind tibiae stout, the longer one almost as long as the hind 

 basitarsus; recurrent vein slightly before the middle of cubital cell; inter- 

 cubitus joining radius its length from the stigma; abdomen smooth, shining, 

 without a pygidium. Black; mandibles, scape beneath, spots on pronotum, 

 tubercule, two spots before the scutellum, yellow; legs black, anterior legs 

 below middle of femora, intermediate tibiae and tarsi, posterior tibiae except 

 a spot within, and hind tarsi yellow; apex of abdomen rufous; wings hyaline; 

 venation brown; head and thorax with silvery pubescence. 



Type locality. Carlinville, Illinois. Described from two males 

 collected by Charles Robertson and recorded under his numbers 

 22928 (type) and 22927. 



Type. Cat. No. 22728, U. S. N. M. 



Anacrabro robertsoni, new species. 



Resembles A. ocellatus Packard but the markings are paler, the 

 abdomen is less coarsely punctured and the mesonotum is opaque 

 and more closely punctured. 



Female. Length, 6 mm. Clypeus strongly convex medianly, the anterior 

 margin slightly produced medianly; head subshining, with the usual fovea, 

 and carinae the large punctures separate ; anterior dorsal margin of pronotum 

 carina te, the lateral angles strong; scutum subopaque; closely confluently 

 punctured on a granular surface; scutellum subshining with large separate, 

 distinct punctures; propodeum with a row of large foveae on the dorsal sur- 

 face, the posterior face with a median triangularly shaped area ; mesepsternum 

 with separate, distinct punctures on a granular surface; sides of propodeum 

 finely punctured ; abdomen shining, with well-separated small punctures, larger 

 on the first becoming smaller apically until on the apical segments they are 

 only setigerous pits; pygidium shining, one-fourth longer than the basal 

 width, narrowly rounded apically, with large, separate punctures. Black; 

 two small spots on the clypeus, submedian dorsal spots on pronotum, tuber- 

 cles, metanotum, lateral spots on all the tergites, whitish; legs black, tibiae 

 and base of tarsi esteriorly whitish; wings hyaline basally, brownish apically; 

 venation black; body, especially the cheeks, with short silvery pile. 



Type locality. Inverness, Florida. Described from one female 

 collected by Chas. Robertson, for whom the species is named. 

 Type. Cat. No. 22612, U. S. N. M. 



