HYMEXOPTERA. OF THE HAWAIIAN ISLANDS. 227 



there is no distinct strigosity, the evidently coarser facets 

 of the eyes and the more strongly concave forehead indi- 

 cate, I think, that it is a distinct species. 



A single female occurred on Maui, near Wailuku, flying 

 over flowers. 



38. Crahro distinctus. 



Crahro distinctus, Smith, Oat. of Hymen. Ins. iv. p. 422. 



This seems to be different from any of the species 

 described by Mr. Blackburn. The following is Smithes 

 description (P. C.) : — 



''Female. Length 3 lines. Black ; the head and thorax 

 opaque ; the stemmata in a curve on the vertex ; the face 

 canaliculated ; the inner orbit of the eye, halfway towards 

 the vertex and the clypeus, covered with golden pube- 

 scence ; the scape and mandibles yellowish white, the tips 

 of the mandibles, and a narrow stripe on the scape within, 

 black. Thorax : an interrupted line on the collar, the 

 tubercles (and a spot behind), the scutellum, and post- 

 scutellum yellowish white ; wings faintly coloured and 

 iridescent. Abdomen : the basal segment with a large 

 transverse irregularly-shaped spot, which is somewhat 

 arched in front, and with two deep rounded emarginations 

 behind, which have a wide outside extending to the apex 

 of the spot; the second, fourth, and fifth segments have 

 an uninterrupted fascia at their base of a yellowish white ; 

 the apical segment shining and punctured. 



"Hah. Sandwich Islands.'^ 



39. Crahro mandihularis. 



Crahro mandihularis. Smith, Proc. Linn. Soc. xiv. p. 677 ($ ). 

 Crahro denticornis. Smith, Proc. Linn. Soc. xiv. p. 678 {S)> Kirby, Ent- 

 Month. Mag. xvii. p. 87. 



I feel no doubt whatever as to the specific identity of 

 these two forms, separated with considerable hesitation by 



