88 New Species of Sterola, With Explanatory Notes. 
32. Sierola carinata n.sp. 
2 unusually large; shining black, not brilliant, tibia and tarsi fuscous. 
Head and thorax with a microscopically close and fairly coarse reticu- 
late surface sculpture, fairly closely but somewhat irregularly punctate and 
hairy. Head wider than the thorax and considerably longer than wide, 
widest at the vertex and narrowing slightly in front, width between the 
eyes greater than the distance from the eye to the vertex, which is consid- 
erable; convex above, depressed in front, a little tumid beneath; vertical 
margin straight, temples rounded, eyes flatly convex; antennze longer than 
the head, segments of the flagellum as wide as or wider than long, pedicel 
a little longer than wide, antennal fosse deep; clypeus reduced by erosion 
at the sides to a carinate ridge, depressed apically and projecting a little in 
front of the anterior margin of the head, the carina extending backward 
on the top of the head beyond the base of the antenne; mandibles very 
stout, curved, concavo-convex, truncate apically and toothed, base nearly 
reaching the eye above; gula rather flat and hairy, somewhat foreshortened 
medially, a little wider than long, anterior margin almost straight, posterior 
margin incised; abdomen elongate ovate, smooth and polished, somewhat 
depressed; wings subinfuscate, with a rather faint yellowish-brown pigmen- 
tation basally and along costal border; length 3.5 mms. 
Described from one female (type) collected at Kilauea, Hawaii, lumber 
camp, 4000 ft. elevation, by W. M. Giffard, July 4, 19018. 
Type: Cat. No. 32, Bishop Museum. 
33. Sierola koa n.sp. 
Q unusually large; shining black, legs and antennz yellowish brown, 
the latter fuscous outwardly. 
Head and thorax with a microscopically fine reticulate surface sculp- 
ture, finely and closely punctate and hairy. Head considerably longer than 
wide, widest across the eyes, slightly narrower behind and in front, length 
from the eye to the vertex equalling the width between the eyes; flatly 
convex above, depressed in front, a little tumid beneath; vertical margin 
straight, temples rounded, eyes convex; antennz scarcely longer than the 
head, the segments of the flagellum not much longer than wide, pedicel a 
little longer, antennal fosse deep; clypeus short, carinate, apically depressed 
and projecting a little in front of the anterior margin of the head, sloping 
at the sides; mandibles very stout, bent at the middle, distal portion some- 
what flattened, obliquely truncate apically and toothed, base touching the 
eye above; gula and sides of the head convex, the former medially fore- 
shortened, wider than long, finely punctate and hairy, anterior margin nearly 
straight, posterior margin incised; abdomen ovate, apically acuminate, smooth 
and polished; wings hyaline; length 3.25 mms. 
Described from three females (type and paratypes) collected on Tan- 
talus mountain, Oahu, on Acacia koa, by J. C. Bridwell, June, rot8. 
Type: Cat. No. 33, Bishop Museum. 
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