58 



Cameron, Hymenopteva Ovientalia. 



it is reddish ; but in other respects the two agree, except 

 that the hinder femora have more black. It may, how- 

 ever, be as well to give a description of the 2 M. opulenta 

 in case M . sorov may be different. 



Head as wide as the thorax; red, coarsely and rugosely 

 punctured, shining, bare, behind the eyes the vertex 

 almost as long as the width of the eyes. Scape of the 

 antennae rufous, darker at the apex and beneath, and 

 bearing large punctures ; the flagellum black, thickly 

 covered with fuscous pile. Thorax black, twice the length 

 of the head; the sides almost parallel, not dilated towards 

 the apex, very coarsely rugosely punctured ; the apex of 

 the median segment with a very slight oblique slope ; 

 above coarsely punctured, the rest finely and uniformly 

 rugose ; the lower part covered with long golden hairs. 

 The pleurae smooth ; the base of the pronotum and the 

 metapleurae coarsely punctured; the lower portion of the 

 metapleurae thickly covered with pale golden pubescence. 

 Petiole black, the apex (probably the whole in fresh 

 examples) fringed with golden hairs; on the base of the 

 second segment are two large oval golden marks ; its apex 

 has a golden band, broadly narrowed in the centre ; the 

 third segment is entirely golden ; the pygidium coriaceous, 

 fringed at the sides with long golden hairs. The second 

 ventral segment has large, somewhat shallow, clearly 

 separated punctures ; all the segments fringed with long 

 golden hairs. The front four legs red, the knees black, 

 sparsely covered with golden hairs, especially the tarsi ; 

 the apical three-fourths of the hind femora are black ; the 

 tibiae and tarsi thickly covered with golden hair. 



The form of the spots on the second abdominal seg- 

 ment varies. In one example on the inner side at the apex 

 they are rounded ; in another they are there truncated as 

 figured by Saussure in his M. humbertiana; in another 

 they are more as he figures them in M. sorov, but the 



