British Hymenoptera. 219 



Division V. 



(10) 1. Not very small; dorsal line of thorax in J not 

 deeply impressed ; ^ with the 1st segment of 

 abdomen not very convex longitudinally ; 2nd 

 not much depressed at the base. 



1st segment of the abdomen, at least on its apical 

 half, and the 2nd and 3rd closely punctured, 

 tarsi of ^ , whitish. 



Face very elongate in both sexes ; 1st segment of 

 abdomen dull, finely punctured all over ; 2nd 

 segment, in fresh examples, with a lateral line 

 of white jjubescence at base . . . . . . inmctatha'Diiuii. 



Face shorter ; 1st segment of abdomen polished 

 and impunctate on the basal half. 



Face as long as wide ; puncturation of thorax 



and abdomen very fine . . . . . . . . nitidlusculm. 



Face wider than long ( J ) ; puncturation of 



thorax and abdomen coarser . . . . . . hreviceps. 



1st segment of abdomen very polished and shin- 

 ing, scarcely punctured at all, or at most only 

 irregularly near the apex ; 2nd and 3rd seg- 

 ments shining, irregularly punctured ; ^ tarsi 

 dark or fuscous. 

 (9) 8. Larger ; face rather more elongate ; abdomen 

 more convex and ovate ; ^ tarsi testaceous- 

 brown . . . . . . . . . . . . atricornia. 



(8) 9. Smaller ; face less elongate ; abdomen flatter, less 



ovate ; tarsi of ^ dark . . . . . . . . minvtuit. 



(1) 10. Very small ; dorsal line of thorax in J deeply 

 impressed ; J with 1st segment of abdomen 

 very convex longitudinally ; 2nd much de- 

 pressed at the base . . . . . . . . minutissimus. 



21. Hcdictus punctatissimus, Schenck. 



Schenck, Jahr. Ver. Nat. Herz. Nassau, ix., 1853, 

 p. 147 = longiceps, E. Saund. =porcus, Mor. ? 



This species may be known from all our other small 

 black ones by the great length of the face. 



<? , Head closely punctured. Apex of the clypeus, 

 labrum, and mandibles pale yellow, tips of the last 

 pitchy ; face in front covered with white silvery hairs, 

 in shape much longer than wide across the eyes. An- 

 tennae pale beneath, reaching to about the base of the 

 metathorax. Vertex, and thorax, especially round its 

 sides, sparingly clothed with greyish hairs ; mesothorax 

 strongly and distinctly punctured ; metathorax rather 

 short, somewhat rounded posteriorly, longitudinally 

 rugose at the base. Abdomen slightly shining, wider than 



