Nc7c species of Sicrola, With Bxpkttiatory Notes. 87 



fairly closely, shallowly and a little coarsely punctate and hairy. Head 

 longer than wide by the length in front of the eyes, width between the eyes 

 considerably more than the length from eye to vertex ; flatly convex above, 

 depressed in front, tumid beneath ; vertical margin straight, temples rounded, 

 eyes flatly convex ; antennae reaching the mesoscutum, all the segments 

 longer than wide, pedicel nearly twice as long as wide, antennal fossae deep ; 

 clypeus reduced by erosion to a carinate ridge, declivous at the sides, api- 

 cally depressed and slightly projected in front of the anterior margin of the 

 head ; mandibles stout, curved, concavo-convex, truncate apically and toothed, 

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

 former medially foreshortened, a little longer than wide, slightly protuber- 

 ant behind where it is divided into two lobes by a wide, shallow sulcus, an- 

 terior margin almost straight, posterior margin incised ; propodeum finely 

 rugulose ; abdomen elongate ovate ; wings with a yellowish brown piginen- 

 tation ; length 3.5 mms. 



Described from one female (type) collected on Kaala mountain, Oahu, 

 2500-3000 ft. elevation, by P. H. Timberlake, July 22, 191 7. 



Type : Cat. No. 30, Bishop Museum. 



31. Sierola usitata n.sp. 



$ moderately flat, slender and elongate ; head and thorax dull black, 

 abdomen brilliant, antennas and legs brown to fuscous, the former fuscous 

 outwardly, the latter basally. 



Head and thorax to the propodeum with a microscopically close, rather 

 coarse, reticulate surface sculpture, a little coarsely, shallowly and closely 

 punctate, clothed with silvery white hairs. Head considerably longer than 

 wide, width between the eyes not much greater than the distance from the 

 eye to the vertex ; convex above, depressed in front and a little tumid be- 

 neath, the greatest depth beneath the posterior end of the eye ; vertical mar- 

 gm straight, temples rounded, eyes flatly convex ; antennae reaching the 

 mesoscutum, all the segments longer than wide, pedicel twice as long as 

 wide, antennal fossae deep; clypetis carinate, slightly projected in front of 

 the anterior margin of the head, depressed in front and sloping at the sides, 

 the carina extending backward on the top of the head beyond the base of the 

 antennae ; mandibles fairly stout, curved, concavo-convex, truncate and toothed 

 apically, base touching the eye above ; gula and sides of the head flat, the 

 former medially foreshortened, longer than wide, narrowing posteriorly, ante- 

 rior margin straight, posterior margm incised ; the latter with a highly pol- 

 ished surface ; propodeum finely rugulose ; abdomen elliptical, apically acumi- 

 nate, smooth and polished ; wings with a deep yellowish brown pigmentation ; 

 length 3.1 mms. 



S smaller, head shorter, antennae more slender, mandibles luteo-testa- 

 ceous ; abdomen bluntly pointed at the apex. 



Described from five females and one male (type, allotype and para- 

 types) collected at Kaumuohona, Oahu, by P. H. Timberlake, September 9, 

 1917. 



Type: Cat. No. 31, Bishop Museum. 



[33] 



