HYMENOPTERA 91 



the clypeus short, the length of its side to the antennal fossa less than that of its 

 anterior margin ; head above the antennae with long fuscous hairs, with very dense 

 sculpture about the middle, forming an area of a more deeply black colour than that 

 of the general surface ; scape of the antennae dilated, but very evidently longer than 

 wide, its posterior margin rounded, the anterior nearly straight ; the front margin 

 seen from in front moderately arched beneath, much less deeply concave than in 

 N. katiaiensis, laticcps, &c., in which species the arch is highest near the apex, while 

 in this species it is highest about the middle of the length of the scape. Mesothorax 

 with long fuscous hairs, quite dull, very finely and not very closely punctured about 

 the centre ; scutellum very slightly less dull, and with rather larger puncturation, the 

 punctures somewhat sparse and irregular, not close and even as in N. kauaiensis, &c. ; 

 propodeum quite finely irregularly rugose in front, the rugosity becoming less evident 

 posteriorly, the actual brow somewhat less dull than the part in front. Apex of 

 abdomen with dark hairs ; 8th ventral segment strongly dilated dorso-ventrally, and 

 the apical bifurcations also expanded ; wings somewhat infuscate. 



Female, very like the d", but the face entirely black, clothed with similar dark 

 pubescence ; head much less convex longitudinally than that of N. kauaiensis. &c. ; 

 above the antennae the surface rather shining, distinctly punctured, the punctures 

 slightly decreasing in size inwardly ; along the middle line the sculpture is very dense, 

 forming a quite opaque area. Mesothorax very finely and rather remotely punctured, 

 quite dull from the fine rugulosity of the surface between the punctures ; scutellum 

 very slightly shining at the sides, less dull than that of the ^, somewhat sparsely 

 and irregularly punctured ; propodeum as in that sex ; basal segment of the abdomen 

 rather dull, impunctate, the surface distinctly finel)- rugulose ; apical segments with 

 dark hairs. 



Hab. Haleakala, Maui (4000 — 5000 ft.) ; rare, three males and one female taken 

 in company with A^. haleakalae and A^. melmiothrix. 



(21) Nesoprosopis coniceps. 



N. coniceps, Blackburn, P. Manch. Soc. Vol. xxv. (1885 — 86), p. 145. 



A species taken on Hawaii, and very closely allied to the preceding, is I believe 

 referable to the above. In sculpture &c. it seems hardly to differ from N. comes. 

 The clypeus has the basal part, the lateral margins and the extreme apex black, all 

 the rest flavous, as well as two large triangular spots between it and the inner margins 

 of the eyes ; the base of the posterior tibiae and of the basal joint of the hind 

 tarsi (and sometimes of the intermediate tarsi), are sometimes yellow ; the process 

 of the eighth ventral segment appears to be slightly less dilated than that of N. 



12 — 2 



