Ncic Species of Sierola, J nth Explanatory Xotes. 91 



rngulose, opaque ; abdomen short ovate, smooth and polished ; wings sub- 

 infuscate, with a yellowish brown pigmentation ; length 3 mms. 



Described from two females (type and paratype). Type collected on 

 a-a flow. Kail, Hawaii, 3600 ft. elevation, by W. M. Giffard, July 18, 1918. 

 One specimen from Kilauea, Hawaii, collected by W. M. Giffard, June 12, 

 rgoS, and numbered 13, paratype. 



Type : Cat. No. t,7. Bishop Museum. 



38. Sierola osbonil n.sp. 



9 unusually large ; shining black, almost brilliant, antennas and legs 

 fuscous to black, the middle and hind femora entirely black. 



Head and thorax with a microscopically fine reticulate surface sculp- 

 ture, fairly closely, shallowly and rather coarsely punctate and hairy. Head 

 wider than the thorax, a little longer than wide, width between the eyes 

 greater than the length from eye to vertex ; convex above and beneath, 

 without great depth ; vertical margin straight, temples rounded, eyes convex ; 

 antenn3e longer than the head, all the segments a little longer than wide, the 

 pedicel more than twice as long as wide, antennal fossae deep ; clypeus re- 

 duced by erosion from the sides to a carinate ridge, apically depressed and 

 projecting slightly in front of the anterior margin of the head, sloping at the 

 sides, the carina extending backward on the head beyond the base of the 

 antennae : mandibles stout, curved, concavo-convex, truncate apically and 

 toothed, base reaching the eye above ; gula and sides of the head convex, 

 the former very much foreshortened medially, transverse, anterior margin 

 arcuately, posterior margin semicircularly concave, median groove faintly 

 impressed ; abdomen ovate, smooth and polished ; wings subinfuscate, with 

 a faint yellowish brown pigmentation basally ; length 3.5 mms. 



Described from one female (type) collected at Kilauea, Hawaii, by 

 D. T. Fullaway, May 12, 1913. 



Type : Cat. No. 38, Bishop Museum. 



39. Sierola fnscipennis n.sp. 



? unusual!}' large ; dull lilack, the head opaque, antennae and legs 

 brown, the former fuscous outwardly, the latter witli the coxae and femora 

 mostly black. 



Head and thorax with a microscopically fine and close reticulate sur- 

 face sculpture, closely and finely punctate and hairy. Head a little longer 

 than wide, widest across the eyes, narrowing slightly behind and in front, 

 width between the eyes considerably more than the length from eye to ver- 

 tex ; convex above, depressed in front, a little tumid beneath ; vertical mar- 

 gin slightly convex, temples rounded, eyes convex ; antennae a little longer 

 than the head, all the segments longer than wide, antennal fossae deep ; 

 clypeus reduced by erosion from the sides to a carinate ridge, apically de- 

 pressed and projecting slightly in front of the anterior margin of the head, 

 sloping at the sides, the carina extending backward on the top of the head 

 beyond the base of the antennae; mandibles stout, curved, concavo-convex, 

 truncate apically and toothed, base nearly reaching the eye above ; cheeks 

 verv narrow ; gula and sides of the head flatly convex, the former mediallv 



[37] ' 



