HTMENOPTERA FROM THE Si.NDWICH ISLANDS. G83 



femora fulvous within, aud the four apical joints of the tarsi ruf o- 

 testaceous. 



Hob. Sandwich Islands. 



This species occurs rarely on the mountains of Oahu. I possess 

 a single female, which differs from the male in having the body- 

 shorter and stouter, with the terminal ventral segments pointed, 

 and the basal joint of the antenna? narrow and cylindrical. {T. B.) 



Prosopis FACiLis, n. sp. Female, Length 85 lines. Black; 

 the head and thorax very closely and finely punctured ; abdomen 

 shining and impunctate. Head suborbiculate ; the clypeus cori- 

 aceous, with some large shallow punctures. The mesothorax with 

 a short impressed line over the tegulse ; the metathorax with short 

 longitudinal strise at the base, the sides having a little white pu- 

 bescence ; the wings fusco-hyaline, hyaline at their base, and 

 brightly iridescent. Abdomen smooth, shining, and impunctate. 



3£ale. Very like the- female, but more slender ; the clypeus 

 and a line at its lateral margins, on the face, yellow ; the scape 

 of the antennae swollen, but black. The anterior tibise and tarsi 

 in front, and also the apex of the femora, yellow ; the wings 

 paler than in the female ; the base of the intermediate and pos- 

 terior tibiae rufo-testaceous. Abdomen oblong-oTate, smooth, 

 shining, and impunctate. 



Sah. Island of Maui. 



Prosopis hilaris, n. sp. Male. Length 3 lines. Head and 

 thorax black, the two basal segments and the base of the third 

 ferruginous. Head — the front as high as the antennae, and on 

 each side, along the margin of the eyes, a little above them, yel- 

 low ; the scape of the antennae and the mandibles yellow, the latter 

 ferruginous at their tips; the scape dilated; the flagellum ferru- 

 ginous. Thorax — the legs ferruginous, with the coxae and femora 

 towards their base black ; wings hyaline and iridescent, their apex 

 faintly clouded ; the metathorax subrugose. Abdomen smooth 

 and shining. 



Sal. Occurs rarely on flowers in the island of Maui. {T. B.) 



Prosopis volattlis, n. sp. Male. Length 3 lines. Head 

 and thorax black, the two basal segments of the abdomen ferru- 

 ginous. Head — the front, below the antennae, yellow ; the flagel- 

 lum fulvous and more or less fuscous above ; the scape has a ful- 

 vous line in front ; the mandibles ferruginous towards their a.pex. 

 Thorax — the anterior tibiae, tarsi, and tips of the femora ferrugi- 



