84 FAUNA HAWAIIENSIS 



antennal fossae, forming a ridge which partly encircles them. Mesothorax dull, 

 clothed with long grey hairs, the surface finely roughened, with very shallow, obscure 

 and rather close puncturation ; scutellum with close shallow punctures ; the anterior 

 area of the propodeum longitudinally rugose ; the base of the posterior tibiae, and 

 the basal joint of the posterior tarsi, pale. Abdomen with the 6th ventral segment 

 emarginate at the apex, and carinated behind the emargination, its sides also emar- 

 ginate ; process of the 8th shortly bifurcated at the apex, or apparently sometimes 

 truncate. 



Female, very like the </ apart from sexual differences ; entirely black, with the 

 face very long between the eyes, and the cheeks extremely long ; head and thorax 

 clothed as in the ^ . Mesothorax dull, finely, closely and shallowly punctured ; 

 scutellum with very distinct, close, and even, but shallow puncturation ; apex of the 

 abdomen with pale hairs. 



Hab. Haleakala, Maui, above the forest nearly to the summit of the mountain 

 (loooo ft.). Frequents the flowers of Cyathodes etc. and is very abundant, but I took 

 only a small series. 



(lo) Nesoprosopis riigulosa, sp. nov. 



? nigra, griseopubescens, haud nitida, mandibulis truncatis, baud distincte dentatis ; 

 genis brevissimis ; mesonoto densissime ruguloso, subtiliter punctato ; propodei area 

 antica irregulariter rugosa ; abdominis segmentis ventralibus distinctius ciliatis ; alls 

 subhyalinis. ?. Long. 6 mm. 



Female, black, antennae with the flagellum sometimes pale beneath ; head with 

 grey pubescence, mandibles somewhat obliquely truncate at the apex, and not toothed ; 

 cheeks extremely short, so that towards the clypeus the base of the mandible nearly 

 touches the eye ; the clypeus is closely and very shallowly punctured, the punctures 

 ill-defined ; the suture of its lateral margins with the sides of the face somewhat 

 deeply impressed ; head above the antennae closely and rather largely, though shallowly 

 punctured. Mesothorax with grey pubescence, its surface dull, densely and excessively 

 finely rugulose, the puncturation fine, shallow and indistinct ; scutellum more largely 

 punctured ; propodeum irregularly rugose in front. Abdomen with the basal segment 

 hardly shining ; intermediate ventral segments pale at their apices, and rather dis- 

 tinctly ciliated along them with white decumbent hairs. 



Hab. Kilauea, Hawaii (4000 ft.), 2 ?. I do not know the d". 



(11) Nesoprosopis vicina, sp. nov. 



? nigra, genis brevibus, capite supra antennas levissime rugoso, haud dense 

 punctato ; mesonoto aequaliter subtiliter punctato ; propodeo antice longitudinaliter 



