V0 1889 11 '] PROCEEDINGS OF THE NATIONAL MUSEUM. 443 



longitudinal keels on disk. Wiugs hyaline, stigma and veins pale 

 brown, the areolet subpeutagoual, the second recurrent nervure inter- 

 stitial with the inner vein of the areolet. 



Habitat. — Placer County, Gal. 



Described from a single specimen, taken by Mr. Albert Kcebele in 

 August. 



ISCHYROCNEMIS Holmgren. 



Ischyrocnemis Carolina sp. uov. 



Male. — Length, 7 6 inlu . Black, shining, sparsely pubescent. Two 

 basal joints of antennae, legs, teguhe, upper margin of collar, petiole 

 of abdomen, except a black spot between the spiracles, apical half of 

 second and third segments, apical one- third of fourth and the sixth 

 and seventh entirely, yellow. The flagellum, scutellum, postscutellum 

 and sutures, metathorax, except a black spot at base and the meta- 

 pleurae, and the prosternuin, ferruginous. The face is only slightly 

 swollen, subopaque, punctate; eyes emarginate opposite base of an- 

 tennae; metathorax smooth, polished. All femora swollen, the pos- 

 terior pair the stoutest, as in genus Exochus ; claws strongly bent; 

 the coxae of posterior legs have a large black spot beneath, the femora 

 are mostly black, the tibiae with a dusky spot at apex, the spurs stout. 

 Wings yellowish-hyaline; stigma and veins brown; the submediau 

 cell is slightly longer than the median; the areolet triangular, petio- 

 lated. 



Habitat.— North Carolina. 



Described from a single specimen. This is the first species in the 

 genus to be detected in our fauna. 



EXOCHUS Gravenborst. 

 Exochus rufigaster sp. uov. 



Female.— Length, 8 ram . Black, polished, sparsely punctured. The 

 face is but slightly prominent, closely punctured, with a small red 

 spot between base of antenna?. Antennae reach to apex of first abdomi- 

 nal segment, black; beneath, towards apex, brown. Metathorax 

 longer than wide, areolated, the spiracles large, linear. Legs, includ- 

 ing coxae, rufous. Abdomen one-third longer than head and thorax 

 together, dark rufous, except the first segment basally and the three 

 apical segments, which are black ; the first segment is bicariuated for 

 half its length. Wiugs hyaline, the stigma and veins brown. 



Habitat. — Texas. 



Described from one specimen in Belfrage collection. 



This species. approaches nearest to E. semiriifus Cr., but in that species 

 the abdomen is entirely rufous. 



