82 FAUNA HAWAIIENSIS 



cheeks between the mandible and eye very short. Mesothorax slightly shining, evenly 

 clothed with pale hairs, very finely and shallowly punctured ; the scutellum more 

 shining, and also very finely punctured ; propodeum finely longitudinally rugose in 

 front. Abdomen without definite puncturation, the apex with pale hairs ; process of 

 the 8th ventral segment bifurcate at the apex. 



Female generally with a spot on the tubercles of the prothorax, and sometimes 

 the base of the tibiae and tarsi pale ; wings subhyaline, cheeks very short as in the ^ ; 

 mesothorax slightly shining, and clothed with very short pale erect pubescence ; 

 scutellum smooth and shining, finely and sparsely punctured ; propodeum finely longi- 

 tudinally rugose in front ; apex of the abdomen above and beneath with pale hairs. 



Hab. Oahu both mountain ranges (2000 — 3000 ft.) and also on the coast at 

 Waianae. Kauai, Makaweli (3000 ft.) and Halemanu (4000 ft). 



Examples taken on the coast of Molokai and Maui, which are of larger size, appear 

 referable to this species, as also others (from the mountains of the former island), 

 having the abdomen red. It is not improbable that both this species, and the pre- 

 ceding, as characterized above, in reality include several distinct forms. 



(7) Nesoprosopis kona. 



Prosopis kona, Blackburn, P. Manch. Soc. xxv. (1885 — 86), p. 144. 



Female, black, with a narrow line bordering the eyes, two spots on the prothorax, 

 the tubercles, a spot at the base of the anterior and intermediate tibiae, and the basal 

 half of the posterior, yellow. Face somewhat long, the clypeus lightly emarginate 

 at the apex, the head above the antennae clothed with long pale hairs, and shallowly 

 punctured. Mesothorax and scutellum dull, with exceedingly minute and remote 

 punctures. Anterior area of the propodeum with the longitudinal rugosities extremely 

 short. Wings clear. Apical segment of the abdomen with dark hairs. All the tarsi 

 dark. 



Male, black, the whole face below the antennae yellow, and this colour is extended 

 backwards along the margin of the eyes above the insertion of the antennae, as in 

 N. blackburni. A line on the prothorax, the tubercles, all the tibiae, and the basal 

 joints of the tarsi, yellow. The tibiae are spotted with black. Basal joint of the 

 antennae dilated, not so wide as long, the sides strongly rounded. Thorax, dull with 

 very fine and remote puncturation, propodeum more shining, and with some oblique 

 wrinkles. Length 5 — 7 mm. 



Hab. Kona, Hawaii (4000 — 6000 ft.). I have only seen the ? of this species, 

 and the description of the d" is condensed from that given by Blackburn (/.r. supra). 

 Although the coloration of the face is like that of several species of the N. blackhirni 

 group, I believe this species is more closely related to N. facilis and its allies. 



