HYMENOPTERA 109 



of the antennae, which is less strongly arched beneath, and the less strongly dilated 

 process of the eighth ventral segment, while the black-haired clypeus, the steely 

 iridescence of the wings, and the less pubescent and less punctured abdomen, will 

 distinguish either sex. Generally taken from flowers of Metrosiderus, Rubus, and 

 sandal trees, and from burrows in the trunks of the latter. The single </ taken in 

 Kona is the only one with the white-bordered prothorax, and it also has a large 

 white spot on the clypeus. The ? ? taken there do not differ from the Kilauea 

 specimens. The latter sex appears to be much more constant in colour than the 

 former. 



(46) Nesoprosopis perspicua, sp. nov. 



Praecedenti affinis, pronoto latissime albo-fasciato, tibiis posticis (macula nigra 

 apicali excepta) albidis ; alis peropacis, nigricantibus ; clypeo minus pubescente ; d" 

 capite toto nigro, antennarum articulo basali antice albo-marginato, bene distinguenda. 

 Long. 8 — 9-5 mm. (Plate II. fig. 5.) 



Closely allied to the preceding, but easily distinguished by the very wide creamy- 

 white collar, and the posterior tibiae almost entirely of the same colour, being black 

 only at the apex within. The wings are very dark, with steely iridescence. The 

 posterior metatarsi are black, sometimes with a small white spot at the base. The 

 </■ has the face entirely black, but the anterior margin of the scape of the antennae 

 is white. The eighth ventral segment is dilated much as in the preceding species. In 

 both sexes the thorax is clothed with short inconspicuous pale pubescence, while in 

 A^. setosifrons it is longer and black. 



H.AB. Mountains of Kauai about 3000 ft. (January, 1S97). A nice series were 

 taken all from the flowers of a single tree (a species of Straussia), but only one of 

 these was a d". 



(47) Nesoprosopis satelles 



Prosopis satelles, Blackburn, P. Manch. Soc. xxv. (1885-86), p. 141. 



(Plate II. fig. 23 — ^^d.) 



Male, with the face entirely black, or with the clypeus tinged with red, or 

 brightly red, as also sometimes the plate above it ; scape of the antennae entirely 

 black or with the anterior margin red. The face is wide across the eyes, and its 

 sides along their borders deeply depressed, the depressions extending behind the line 

 of insertion of the antennae. Scape of the antennae greatly dilated, not longer than 

 wide, distinctly and very closely and finely punctured, both front and hind margins 



