ON PARASITIC HYMENOPTERA. 9;'. 



body and legs sparsely covered with silvery white pubescence ; wings hyaline, 

 the nervure fuscous, $ . 



Length 3-5 mm. 



Quetta. May. 



Centre of head above strongly punctured, the punctures round and clearly 

 separated, the centre of the vertex with a broad, strongly aciculated longitudinal 

 band. Occiput broadly roundly incised, the centre depressed. Frontal lobes twice 

 longer than the width of the base ; they are narrowed towards the apex, 

 the inner edge has a distinct margin ; it is depressed, the inner and apical edges 

 raised, the outer less distinctly margined; the frontal incision becomes grad- 

 ually widened towards the apex, it being there fully twice the width of the 

 ba^e. Pro- and mesonotum strongly punctured ; the former has the apex 

 smooth in the middle, this being also the case with the centre of the scutellum 

 which is largely impuuctate. Metanotum closely reticulated-striated ; there is 

 a short keel in the centre of the apex ; on the sides are 2 keels which converge 

 and unite near the apex, forming a longish triangular area. The sides, at the 

 base, are broadly roundly dilated, in the middle is a stout triangular tooth ; the 

 apex projects into a shorter tooth. Propleurse (especially above) strongly 

 punctured ; the base of mesopleurse much less: strongly and less closely 

 punctured, opaque ; the apex is somewhat strongly, but not very regularly 

 striated, the two parts being separated by a curved keel. Metapleurse distinctly 

 irregularly reticulated. Abdominal petiole broader than long, the top with 4 1 -- 

 stout, longitudinal keels ; on the base of the 2nd Segment, extending from the 

 base to near the middle, is a closely striated space ; the apical segment is broadly, 

 deeply, roundly incised in the centre. The hind coxeb are flat above and finely 

 closely striated in the middle ; the basal joint of the trochanters is raised, 

 compressed, oblique, and appears almost to form part of the coxge ; the lower is 

 shorter and projects below into a ball-like mass, longer than broad, and appear- 

 ing as if it were attached to the under side of the base of the femora. 



This cannot well be confounded with any of the described species. Charac- 

 teristic is the roundly, deeply incised apex of the abdomen. In the species 

 known to me, e.g., D. excavatus, Dal. and D. rujicornis, Cam., the apex is 

 trilobate, it having a large central, bordered by a small lateral lobe. 



Megacolus pruinosus, sp. nov. 



Black, densely covered with silvery pile, the hind coxpe and femora bright 

 red ; the 4 anterior tarsi of a darker red ; the hinder tibife of a darker red 

 colour ; the wings hyaline, the nervures black. $ . 



Length 7 mm.; terebra 2 mm. 



Quetta. August. 



Head rugosely punctured, the cheeks and temples densely, the vertex more 

 sparsely covered with long silvery hair. Malar space almost as long as the 

 eyes ; the inner side bordered by a distinct keel. Fro-mesothorax and scutellum 

 strongly punctured, the punctures distinctly separated ; the pleurae closely 

 rugosely punctured. Metanotum laterally bordered by a stout keel ; the lower 



