92 FAUNA HAWAIIENSIS 



comes. The female is somewhat variable, and I see no definite character to separate 

 it from the single individual of that sex of the preceding. 



Hab. Kilauea, Hawaii (4000 ft.), 1895 and 1896. Not common. Mauna Kea 

 (6000 ft.), Rev. T. Blackburn. 



(22) Nesoprosopis dumetorum, sp. nov. 



Parvula, nigra, opaca, mesonoto subtilissime nee dense punctato, pilis nigris bre- 

 vissimis vestito, propodeo antice brevissime rugoso, postice nitidulo ; cT fronte tribus 

 maculis flavis ornata ; maculis quam praecedentis minoribus ; pronoto utrinque, cum 

 tuberculis et tibiarum basi, nonnunquam flavo-notato, nonnunquam his omnibus nigris ; 

 articuli antennarum primi margine antico subtus vix arcuato ; ? duabus juxta oculos 

 lineis flavis ; pronoto postice ad latera, tuberculis, tegulis plerumque, cum basi tibi- 

 arum flavo-notatis ; capite longitudinaliter fortissime (maris minus fortiter), convexo. 

 Long. 4'5- — 6 mm. 



In the male a spot near the apex of the clypeus, and one on each side of the 

 face bordering the eyes, are yellow. These spots are generally much smaller than in 

 N. coniceps though sometimes nearly as large ; prothorax on each side, the tubercles, 

 and the base of the tibiae, sometimes spotted with yellow, but more often all these 

 are black. The head is shaped very like that of the two preceding species, but the 

 front margin of the scape of the antennae is nearly straight, hardly arched, beneath ; 

 face above the antennae dull, and very densely and finely punctured about the middle, 

 with a large deep-black area in contrast with the rest of the surface and on which 

 the sculpture is exceedingly dense. Mesothorax very finely punctured, clothed with 

 very short dark pubescence ; scutellum with slightly larger punctures, but fine and 

 not very close ; propodeum rugose at the extreme front, behind this part the surface 

 only rugulose, the brow sometimes, at least in certain aspects, slightly shining. Ab- 

 domen with the basal segment dull, with distinct surface rugulosity ; eighth ventral 

 segment with the process dilated, much as in N. coniceps ; wings sometimes somewhat 

 infuscate, but often hyaline. 



Female, small, and very like the c/" in most respects ; face with only a narrow 

 line along the eyes yellow ; posterior margin of the prothorax at the sides, a spot on 

 the tegulae (sometimes wanting), one on the tubercles, the whole front of the an- 

 terior tibiae, the extreme base of the intermediate, and the base of the posterior 

 tibiae more widely, yellow ; face strongly convex longitudinally, above the antennae 

 hardly shining, but not so dull as in the </, and without the deep-black dull area of 

 that sex, finely and closely punctured ; mesothorax clothed, as in the ^ , with ex- 

 ceedingly fine puncturation, its surface quite dull ; scutellum dull, very finely punc- 

 tured, but quite evidently more strongly so than the mesothorax, the punctures not 



