HYMENOPTERA 99 



(31) A^csoprosopis obscurata, sp. nov. 



Praecedenti simillima, sed i colore flavo tantum anguste supra antennas pro- 

 ducto, lamina supraclypeari tota, vel ex parte, nigra, minus elongata, tibiis posticis 

 et intermediis nigris ; ? capite supra antennas minus dense punctato, inter puncta 

 laeviori, scutello subnitido et laeviori, alis infuscatis, distinguenda. Long. 6 — 8'5 mm. 



Very closely allied to N. longiceps, but the ^ with the head rather less 

 elongate, the plate above the clypeus decidedly wider, and entirely or partly black, 

 the yellow markings of the face only very narrowly produced behind the antennae ; 

 the posterior and intermediate tibiae are not pale at the base, the posterior 

 tarsi black or piceo-testaceous ; wings more or less distinctly infuscate. 



Female, with the head rather less densely punctured above the antennae, than 

 in the preceding, the surface between the punctures smoother and less dull, the 

 scutellum somewhat shining, the wings quite infuscate, and the face somewhat wider. 



H.\B. Coast or lower slopes of the mountains of Molokai and Lanai ; coast of 

 Hawaii (Kealakeakua Bay). Rare. 



Ob.s. I have taken the specimens from Hawaii as types. It is uncertain whether 

 they will prove specifically identical with those from the other islands, but the material 

 taken is insufficient to settle this point. 



(32) A^esoprosopis flavipes. 



Prosopis flavipes. Smith, Cat. Hym. Ins. pt. i. p. 23; Blackburn and Cameron, 

 P. Manch. Soc. xxv. (1885-86), p. 149. 



" Male. Length 2^ lines. Black ; the face yellow, the colouring is continued 

 upwards on each side nearly to the vertex of the eye ; the scape cylindrical, black, the 

 rest of the antennae orange, yellow beneath. Thorax, the metathorax has no distinctly 

 enclosed space, and is subrugose ; the wings hyaline, the nervures dark fuscous, all the 

 tibiae and tarsi bright yellow, the former have a ferruginous stain behind. Abdomen 

 smooth and shining, the margins of the segments narrowly rufotestaceous," 



" Hab. Sandwich Islands." 



The above description is taken from Smith's work (/. c. supra). The species is 

 represented by a single example brought home by the Beechey expedition. Probably 

 it represents on Oahu the N. Jinitima of Kauai, and A'^. longiceps of Molokai, &c. 

 Although very closely allied I believe it to be distinct from either of these species. 



13—2 



