New Species of Sierola, With Explanatory Notes. ui 
abdomen short ovate, smooth and polished; wings subinfuscate, with a 
faint yellowish brown pigmentation; length 3 mms. 
Described from one female (type) collected in the Waianae Mountains, 
Oahu, by D. T. Fullaway, March 5, 1911. 
Type: Cat. No. 116, Bishop Museum. 
117. Sierola nigra n.sp. 
@ shining black, the legs fuscous basally, tibie, tarsi and antenne yel- 
lowish brown, mandibles reddish brown. 
Head and thorax to the propodeum with a microscopically fine and 
shallow reticulate surface sculpture; extremely finely and fairly closely punc- 
tate; clothed with short, delicate grayish hairs. Head as wide as long, 
widest across the eyes, narrowing behind and in front, width between the 
eyes greater by a half than the length from eye to vertex; flatly convex 
above, depressed in front, a little tumid beneath; vertical margin straight, 
temples rounded, eyes convex; antenne nearly reaching the scutellum, pedi- 
cel and first funicle segment twice as long as wide, following segments all 
a little longer than wide, antennal fosse deep; clypeus short, carinate, api- 
cally depressed and projecting slightly in front of the anterior margin of 
the head, which is angulate, not transverse, sloping at the sides, the carina 
extending backward shortly on the top of the head; mandibles fairly stout, 
curved, concavo-convex, truncate apically and toothed, base not quite reach- 
ing the eye above, lower lobe slightly protuberant; gula and sides of the 
head flat, the former medially foreshortened, wider than long, narrowing 
behind, where there is a slight depression along the median line, anterior 
margin arcuately concave, posterior margin incised; propodeum rugulose; 
abdomen short ovate, apically acuminate, smooth and polished; wings sub- 
infuscate, with a faint yellowish brown pigmentation; length 2 mms. 
Described from one female (type) collected on Kaala Mountain, Oahu, 
by O. H. Swezey, August II, 1912. 
Type: Cat. No. 117, Bishop Museum. 
118. Sierola manoa n.sp. 
@ shining black, the head somewhat dull; legs reddish brown, man- 
dibles and antennz yellowish brown, the former black at the base, the latter 
fuscous outwardly. 
Head and thorax to the propodeum with a microscopically fine reticu- 
late surface sculpture; fairly coarsely and remotely punctate, and hairy. 
Head nearly as wide as long, width between the eyes about twice the length 
from eye to vertex; flat above, depressed in front, convex beneath; vertical 
margin straight, temples rounded, eyes convex; antenne reaching the meso- 
scutum, all the segments longer than wide, pedicel twice as long as wide, 
antennal fosse deep; clypeus carinate, apically depressed and projecting 
slightly 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 antenne; mandibles fairly stout, curved, truncate apically 
and toothed, base not quite reaching the eye above, lower lobe protuberant ; 
gula and sides of the head flat, the former medially foreshortened, wider 
iz) 
