^Ir. H. E. Tiuncr on Fossorud Hijmenoptera. 353 



Genus ZOYPIIIUM, Kohl. 



This genus can only he separated from Sericophorus hy 

 the ahsence of an a|j|)omlix to tiie radial cell of tho tore 

 wing. None of the other characters found in the species are 

 coinnion to all of the genus, and some of the species resemble 

 !Sericoi>horus very closely. 



Type of the genus, Z. sericeum. Kohl. 



The apical joint of the tarsi is tliiekened in most of the 

 species, in both sexes in Z. enjtkrosoma, but not in Z. rxifu- 

 nl(jrum and Z. doddi, both of which are only known in the 

 male sex. Tlie spine on each side of the first abdominal 

 segment, mentioned by Kohl in his description of the genus, 

 seen)s to be a character couHned to the type-Sj)ecies. 



Key to the Species o/Zoyphium. 



$?. 



1 . Two cubital cells only, the second transverse 



cubital nervure obsolete ; front as high as 

 the iiiiildle of the inner orbit of the eye 



yellow Z. frontale, Turn. 



Three cubital cells ; front black 2. 



2. Abdomen entirely black 3. 



Abdomen not entirely black 5. 



3. Clypeus convex, porrect at the apex ; pro- 



uotum margined with whitish yellow . . Z.fimvbvc, Turn, 

 Clypeus not porrect at the apex, pronotum 

 wholly black 4. 



4. Anteunai black, clypeus with two small teeth 



on each side, tirst recurrent nervure almost 

 interstitial with the tirst transverse cubital 

 nervure Z. irulipenne, Turn. 



Antenn;c testaceous brown; ch'peus without 

 teeth, tirst recurrent nervure received at a 

 distance from the apex of the first cubitul 

 cell equal to more than half the length of 



the tirst transverse cubital nervure Z. kohlii, Turn. 



o. First abdominal segment with a tubercle on 



each side Z. sericeum, Kohl. 



First abdominal segment without a tubercle 



on each side 6. 



G. Thorax blackish blue ; abdomen wholly testa- 

 ceous red Z. erythrosoma, Turn. 



Thorax and basal and apical abdominal seg- 

 ments te-taceous brown, remainder of 

 abdomen black Z dipteroides, Turn, 



6 6. 



J. .Vbdomen wholly rufo-testaceous Z. erythrosoma, Turn. 



Abdomen wholly black 2. 



2. Mefonotum and median segment ferruginous 



red Z. rufo7iiyrum, Turn. 



Mesonotum and median segment black .... 3. 



