North American Hymenoptera. 223 



ones are smallest ; a larger brown spot behind the ante- 

 rior wings : wings hyaline, with fuscous nervures; carpus 

 greenish in the middle : tergum blackish, dull greenish in 



the middle : tarsi and tibice exteriorly dusky : posterior 

 tibiae blackish. 



^ 



Length nearly two fifths of an inch. 



XoRiDEs, Latr. 



X. humerdlis, Nob. Contributions of the Maclurean 

 Lyceum, p, 74, where I placed it, agreeably to Jurine, 

 in his genus Anomalon, 



^ Antennce entirely black : tergum, first segment on 

 each side with two longitudinal impressed lines ; second 

 and third segments each with an impressed oblique line 

 each side at their bases : trochanters partly white ; ante- 



feet 



o 



an 



Brachygaster, Leach. (Evania, F.) 



B. reticulatus. Black ; first joint of the antennae, and 

 anterior pairs of feet piceous. 



Inhabits Indiana. 



Body black, reticulate with large punctures : anienntt 

 not longer than the trunk, with close set, subequal joints ; 

 first joint subclavate, piceous, longest; second joint not 

 longer than broad, shortest, about half the length of the 

 third : punctures on the posterior face of the metathorax 

 more dilated than those of the thorax : tvings hyaline ; 

 nervures fuscous : petiole about as long as the abdomen, 

 punctured : ahdomen orbicular, polished, Impunctured : 

 feeiy two anterior pairs piceous. 



