44 Descriptions of new Species of Aculeate Hymenoptera. 



legs very slender; the posterior coxte stout, elongate, and trans- 

 versely striated ; the tibiae slender, with their apex slightly 

 thickened and pubescent ; the tarsi pubescent, the base of the 

 joints ferruginous. Abdomen : the petiole transversely striated ; 

 the following joints are smooth, shining, and have a chalybeous 

 iridescence ; the valves of the ovipositor black, the ovipositor 

 ferruginous. 



, Genus Megisciius, Brulle. 

 Meg'ischus mger. 

 M. niger, alis hyalinis, abdominis segmento primo transversim 

 striato ; valvulis ovipositorse ante apicem annulo albo. 



Female. Length 9\ lines, of the ovipositor 11 lines. Black; 

 head rugose in front, the vertex transversely striated, the cheeks 

 smooth and shining. The thorax v.'ith large scattered punctures ; 

 the apex of the metathorax roughly punctured ; the wings 

 hyaline ; the nervures black ; the posterior femora with two stout 

 spines or teeth beneath, and a number of minute ones between 

 them. Abdomen : the first segment very finely striated trans- 

 versely, the rest smooth and shining ; the ovipositor broadly 

 annulated with white a little before the apex. 



