222 HYMENOPTERA ACULEATA. 



L. 6 mm. 



A very common species everywhere ; easily known by 

 the white ventral tufts of the c?, and the finely punctured 

 mesonotum and basal segment of the abdomen in the ? , 

 this combination is not found in any other of our small 

 species. 



H. minutus, Kirh. — Deep black, shining, very like 

 the preceding, but the <? with the labrum black, the man- 

 dibles piceous, the puncturation of the mesonotum stronger, 

 the abdominal segments without the long ventral tufts of 

 nitidiuscultcs, and the stipites of the armature with a reflexed 

 ribbon-like appendage, the tibije and tarsi entirely black. 



? with the mesonotum more shining and more strongly 

 punctured, and all the segments of the abdomen less closely 

 punctured, especially the second and third, their apices 

 scarcely discoloured, basal segment very shining with a few 

 shallow punctures near the apex. 



L. 6 mm. 



Much rarer than the preceding, though probably con- 

 fused with it. I have taken it at Woking, Chobham, 

 and Tunbridge Wells. Shiere ; (Capron). Bickleigh, 

 Devon; [Bignell). Norfolk; (Bridgman). Gloucestershire; 

 (Perkins). Lancashire and Cheshire; {Gardner). Bury 

 St. Edmunds [Tuclc). Ballygarret, Ireland; (Guthhert). 



H. atricornis, Smith. — Exceedingly like minutus, but 

 rather larger, with a distinct!}' longer face, chiefly due to 

 the longer and more produced clypeus, mandibles in the J* 

 nearly black, mesonotum in both sexes more convex, less 

 regularly punctured, the punctures more unequal in size, 

 in the <? with a strongly impressed dorsal line, in the ? 

 with a very fine one, propodeum rather more largely 

 rounded in both sexes, and in the c? with its area more 

 rugose, its brow rather sharper ; abdomen very shining, 

 (J with the puncturation of the second and following seg- 

 ments less close, and shallower ; armature with the stipites 

 produced into two elongate processes, the outer one shorter 



