Ncz^' Species of Sicrola, With Explanatory Notes. 151 



and sides of the head flat, the former medially fc^reshortened. as wide as 

 long, narrowing behind, anterior margin arcuately concave, posterior margin 

 incised; propodeum rugulose. with a narrow triangular area medially at the 

 base smooth ; abdomen ovate, apically acuminate, smooth and polished ; w-ings 

 hyaline ; length 2.25 mms. 



Described from one female (type) collected on Tantalus ^Mountain, 

 Oahu. by O. H. Swezey, March 16, 191 5. 



Type: Cat. Xo. 156. Bishop Museum. 



157. Sierola perkiusi n.'-'p. 



9 shining black, legs and antenna^ liasally yellowish lirown, frcint and 

 hind femora and antenn.-e outwardly fuscous, mandibles outwardly reddish 

 brown. 



Head and thorax to the propodeum with a microscopically hue reticu- 

 late surface sculpture ; fairly coarsely and closely punctate ; clothed with 

 delicate silver gray hairs. Head a little longer than wide, widest across the 

 eyes, narrowing behind and in front, w'idth laetween the eyes greater by a 

 half than the length from eye to vertex ; tiatly convex above, depressed in 

 front, tumid beneath, the greatest depth directly behind the eye ; vertical 

 margin straight, temples rounded, eyes convex ; antennse reaching the meso- 

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

 antennal fossa; deep ; clypeus reduced by erosion from the sides to a thin 

 carinate ridge, apically depressed, hardly projecting in front of the anterior 

 margin of the head, which is angulate, not transverse, the carina extending 

 backward on the top of the head beyond the base of the antennae ; mandibles 

 slender, curved, truncate apically and toothed, base touching the eye above ; 

 gula and sides of the head flat, the former a little foreshortened medially, 

 longer than wide, narrowing behind, anterior margin arcuately concave, pos- 

 terior margin incised ; abdomen ovate, apically acuminate, smooth and pol- 

 ished; wings subinfuscate. with a faint yellowish brown pigmentation; 

 length 2.25 mms. 



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

 forest, 4000 ft. elevation, by W. M. Giffard and F. Muir, November i, 1917. 



Type: Cat. Xo. 157, Bishop ]\Iuseum. 



158. Sierola perottetiae 11. .sp. 



2 shining black, the legs and antennre fuscous except the scape, pedicel, 

 trochanters, tibiae and tarsi, which are yellowish brown. 



Head and thorax to the propodeum with a microscopically fine and 

 delicate reticulate surface sculpture ; coarsely, shallowly and remotely punc- 

 tate ; hairy clothing short and inconspicuous. Head longer than wide by a 

 third, width between the eyes greater than the length from eye to vertex, 

 length in front of the eyes not great ; flatly convex above, depressed in 

 front, a little tumid beneath ; vertical margin straight, temples rounded, eyes 

 flatly convex ; antennae not much longer than the head, pedicel and first 

 funicle segment longer than wide, the following segments as wide as or 

 wider than long, antennal fossae deep ; clypeus carinate. apically depressed, 

 hardlv projecting in front of the anterior margin of the head, declivous at 



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