96 FAUNA HAWAIIENSIS 



be formed of a patch of extremely short and close-set black pubescence. Female 

 with the face entirely black, the prothorax with small lateral yellow spots, and the 

 tubercles are also marked with yellow ; intermediate and posterior tibiae and tarsi 

 black ; head above the antennae especially towards the vertex distinctly shining 

 between the closely-set punctures. 



Hab. Lanai (2500 ft); January 1894, very rare; 2 t/, i ? only taken. 



(28) Nesoprosopis dimidiata, sp. nov. 



cT capite prae antennis fere toto flavo, tibiis tarsisque flavis, illis nigro-maculatis, 

 horum articulis apicalibus plus minusve infuscatis, tuberculis pronoti flavo-notatis ; 

 capite supra antennas dense ruguloso, minus distincte sparsim punctato ; antennarum 

 articulo primo multo longiore quam latiore, subtus modice arcuato ; ? nigra, angus- 

 tula, tibiis intermediis et posticis ad basim breviter pallidis ; mesonoto cum scutello 

 opaco, subtilissime punctato. Long. 5 mm. 



Male, with the whole of the face below the antennae, except the upper part of 

 the plate above the clypeus, yellow ; antennae with the scape dilated, but consider- 

 ably longer than wide, its anterior margin moderately arched beneath ; head above 

 the antennae dull, with the surface very finely roughened, and very shallowly, some- 

 what remotely punctured. Mesothorax dull and finely punctured ; scutellum dull with 

 shallow and not very close puncturation ; propodeum with the anterior area rugose 

 at the extreme front, otherwise only finely rugulose and dull, hardly shining even at 

 the brow ; tubercles of the prothorax with a yellow spot, all the tibiae and tarsi 

 bright flavous, the front tibiae with a black spot behind, the intermediate and pos- 

 terior with a black ring ; apical joints of the tarsi more or less obscured in colour ; 

 pubescence of head, thorax and legs pale : the process of the eighth ventral segment 

 dilated. 



Female, entirely black, except the front of the anterior tibiae, which are yellow, 

 the flagellum of the antennae, which is testaceous beneath, and the extreme base 

 of the middle and posterior tibiae, which have a yellow spot. Face not at all 

 strongly convex longitudinally, above the antennae rather shining, and finely punc- 

 tured ; mesothorax and scutellum quite dull, with exceedingly feebly impressed 

 punctures ; scutellum with very sparse, almost obsolete puncturation ; propodeum 

 with hardly any distinct rugosity at its anterior margin, the whole anterior area being 

 very densely rugulose and dull, the brow shining in certain aspects, dull in others ; 

 basal segment of the abdomen hardly shining, the apical segments with pale hairs. 



Hab. a single d' taken in Kona, Hawaii, at an elevation of 4000 ft. (Aug. 

 1892). The $ I have here described came, I believe, from the same locality, but 

 unfortunately the locality label was lost. 



