£10 New Species of Sierola, With Explanatory Notes. 
Head and thorax with a microscopically fine reticulate surface sculp- 
ture; finely, shallowly, somewhat sparsely punctate, and hairy. Head longer 
than wide by one-half, width between the eyes equalling the length from eye 
to vertex: rather flat above, convex beneath, the greatest depth at the mid- 
dle; vertical margin straight, temples rounded, eyes flatly convex; antenne 
scarcely longer than the head, pedicel a little longer than wide, following seg- 
ments as wide as long or nearly so, antennal fossee deep; clypeus carinate, 
apically depressed 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 antennze; mandibles fairly stout, curved, 
concavo-convex, truncate apically and toothed, base touching the eye above; 
eula and sides of the head convex, medially foreshortened, as wide as long, 
anterior margin arcuately concave, posterior margin incised; abdomen elon- 
eate ovate, smooth and polished; wings subinfuscate, with a faint yellowish 
brown pigmentation; length 3 mms. 
Described from one female (type) collected by Koebele on Oahu. 
Type: Cat. No. 75, Bishop Museum. 
76. Sierola longiceps u.sp. 
9 shining black, head and thorax a little dull; antennze brown basally, 
fuscous outwardly, trochanters, tibiz, tarsi and apex of femora yellowish 
brown, mandibles reddish at apex. 
Head and thorax with a microscopically fine and close reticulate sur- 
face sculpture; finely, shallowly and closely punctate; rather thickly clothed 
with long silvery hairs. Head nearly twice as long as wide, widest across 
the eyes, narrowing behind and in front, width between the eyes a little 
more than the length from eye to vertex; flat on top, depressed in front, a 
little tumid beneath, the greatest depth beneath the posterior end of the eye: 
vertical margin straight, temples rounded, eyes flatly convex; antennz reach- 
ing the mesoscutum, all the segments longer than wide, antennal fossz 
deep; clypeus carinate, apically depressed and projecting slightly in front of 
the anterior margin of the head, which is angulate, not transverse, declivous 
at the sides, the carina extending backward on the top of the head beyond 
the base of the antenne; mandibles slender, curved, truncate apically and 
toothed, base not reaching the eye; gula and sides of the head flat, the for- 
mer medially foreshortened, a little longer than wide, narrowing behind, the 
median groove entirely effaced, anterior margin straight, posterior margin 
incised; propodeum rugulose; abdomen short ovate, smooth and polished; 
wings subinfuscate, with a faint yellowish brown pigmentation; length 2.75 
mms. 
Described from one female (type) collected at Kilauea, Hawaii, 4000 ft. 
elevation, by W. M. Giffard, October, 1915. 
Type: Cat. No. 76, Bishop Museum. 
77. Sterola rugulosa n.sp. 
2 dull shining black, antennz yellowish brown, fuscous outwardly, legs 
fuscous, mandibles brown except at the base. 
Head and thorax to the propodeum with a microscopically fine, fairly 
coarse reticulate surface sculpture, coarser on the head; coarsely, shallowly 
and rather closely punctate; thinly clothed with silvery hairs. Head longer 
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