no FAUNA HAWAIIENSIS 



strongly rounded, beneath deeply arcuate. Mesothorax and scutellum with dark 

 pubescence, distinctly and evenly punctured ; propodeum with the anterior area more 

 or less rugose in front, behind these rugosities its surface merely rugulose, sometimes 

 the whole area rugulose. Abdomen subelongate, with a fine and shallow, but quite 

 distinct puncturation, even on the basal segment ; eighth ventral segment with its pro- 

 cess exceedingly strongly dilated, the dilated part with a pale membranous appear- 

 ance, its ventral crest densely clothed with generally sooty-black hairs, the extremit)- 

 bifurcate and greatly dilated, fringed with long pubescence. Posterior tarsi some- 

 times testaceous, sometimes dark. 



Female very like the (/, but more robust, the clypeus and sometimes the plate 

 above it and the scape of the antennae (more or less) red. Face strongly convex 

 longitudinally, above the antennae generally finely strigose and punctured, clothed 

 with dark pubescence. Prothorax black, as in the cT, and the mesothorax and scu- 

 tellum similarly punctured ; propodeum with the rugosity of its anterior area extremely 

 short, sometimes almost absent, the surface finely rugulose. Abdomen with the basal 

 segments shining, the first distinctly, though finely and shallowly punctured, some- 

 what closely towards the apex ; second segment very finely punctured on the basal 

 half ; the following segments with rather larger, but very shallow puncturation ; apical 

 segments with black hairs. Wings entirely dark in both sexes, and with blue iri- 

 descence. Length, 8 — lo mm. 



Hab. Mountains of Molokai and Lanai, and on Haleakala, Maui (5000 ft.). 

 The males from Molokai generally have the face entirely black, or with the clypeus 

 only obscurely reddish towards the apex. On Lanai they apparently always have 

 the clypeus and anterior margin of the scape of the antennae pale. Two examples 

 from Molokai resemble those from Lanai. Specimens from the latter island are of 

 smaller average size than those from the former. On Maui I have only taken the %. 



(48) Nesoprosopis insignis, sp. no\". 



Praecedenti finitima, d" articulo primo antennarum fortiter transverso marginibus 

 ambobus fortissime rotundatis ; ? clypeo nigro distinguenda. Long. 8 — 9-5 mm. 

 (Plate IL fig. 24.) 



Like the preceding in general form and sculpture, but the ,} with the scape still 

 more strongly dilated, it being strongly transverse, both front and hind margin ex- 

 ceedingly strongly rounded. The facial markings are evidently variable, one of the 

 two examples taken having the face entirely black, the other with a broad longi- 

 tudinal yellow band, expanded at the apex, down the middle of the clypeus. In 

 one the sides of the face are very deeply grooved, in the other much less so. Thorax 

 and abdomen much as in N. satelles. 



