Nc-iC Species of Sicrola, With Bxplaiiatory Notes. 133 



nearly effaced ; propodeum coarsely rugulose ; abdomen ovate, smooth and 

 polished ; wings subinfuscate ; length 3 mms. 



Described from one female (type) collected on Mt. Kaala, Oahu, by 

 P. H. Timberlake. July 4, 1916. 



Type: Cat. No. 120. Bishop Museum. 



121. Sierola viiJcana n.sp. 



? shining black, the legs and antennae fuscous, trochanters, apex of 

 femora, tibiae and tarsi brown. 



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

 late surface sculpture ; coarsely, shallowly and fairly closely punctate, and 

 hairy. Head nearly as wide as long, width between the eyes twice the 

 length from eye to vertex, length in front of the eyes not great ; flat above, 

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

 eyes flatly convex ; antennae reaching the scutellum, all the segments twice 

 as long as wide, antennal fosss deep ; clypeus carinate, apically depressed 

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

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

 the base of the antennae ; mandibles stout, curved, truncate apically and 

 toothed, base not reaching the eye above, lower lobe protuberant ; gula flatly 

 convex, medially foreshortened, wider than long, anterior margin arcuately 

 concave, posterior margin incised ; propodeum finely rugulose ; abdomen 

 ovate, apically acuminate, smooth and polished ; wings with a yellowish 

 brown pigmentation ; length 3 mms. 



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

 camp, 4000 ft. elevation, by W. M. Giffard, July 19, 1918. 



Type: Cat. No. 121, Bishop Museum. 



122. Sierola nigmns n.sp. 



5 dull shining black, the legs outwardly fuscous. 



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

 face sculpture ; finely, shallowly and fairly closely punctate, and hairy. Head 

 as wide as long, width between the eyes nearly twice 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 convex ; anteimae reaching the scutellum, all the segments longer than 

 wide, antennal fossa; deep ; clypeus carinate, apically depressed and pro- 

 jecting 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 antenuc-e ; mandibles slender, curved, truncate apically and 

 toothed, base not quite reaching the eye ; gula and sides of the head flat, 

 the former medially foreshortened, wider than long, narrowing behind, ante- 

 rior margin arcuately concave, posterior margin incised, median groove nearly 

 effaced ; abdomen ovate, reticulately sculptured and shining ; wings infuscate, 

 with a faint fuscous pigmentation ; length 2.75 mms. 



Described from one female (type) collected at Kahuku, Kau, Hawaii, 

 t8oo ft. elevation, by W. M. Giffard, January 14, 1919. 



Type: Cat. No. 122, Bishop Museum. 



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