New Species of Sierola, With Explanatory Notes. III 
than wide by a half, width between the eyes equalling the length from eye 
to vertex; length in front of the eyes not great; convex above and beneath; 
vertical margin straight, temples rounded, eyes flatly convex; antennez not 
much longer than the head, pedicel twice as long as wide, first six funicle 
segments as wide as long, the following segments longer than wide, antennal 
fossee deep; clypeus short, carinate, almost vertically depressed and project- 
ing slightly in front of the anterior margin of the head, the carina extending 
backward a little on the top of the head; mandibles slender, curved, truncate 
apically and toothed, base touching the eye above; gula convex, a little fore- 
shortened medially, anterior margin arcuately concave, posterior margin 
incised, sides of the head flat; propodeum finely sculptured, brilliant; abdo- 
men elongate ovate, smooth and polished; wings subinfuscate; length 2.2 
mms. 
Described from one female (type) collected on Palolo Hill trail, Oahu, 
by P. H. Timberlake, April 7, 1916, and numbered 16. 
Type: Cat. No. 77, Bishop Museum. 
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78. Sierola brevicauda n.sp. 
Q@ shining black, a little dull; antennz yellowish brown at the base, out- 
wardly fuscous, legs fuscous basally, outwardly yellowish brown, mandibles 
reddish apically. 
Head and thorax to the propodeum with a microscopically fine reticu- 
late surface sculpture, coarser on the head, very delicate on the scutellum: 
closely, shallowly and fairly coarsely punctate and hairy. Head longer than 
wide by a half, width between the eyes a little more than the length from 
eye to vertex; flatly convex above, depressed in front, convex beneath; ver- 
tical margin straight, temples rounded, eyes convex; antenne reaching the 
scutellum, all the segments longer than wide, pedicel more than twice as long 
as wide, antennal fosse 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 to the anterior 
margin of the eyes; mandibles slender, curved, twisted and flattened out- 
wardly, truncate apically and toothed, base not reaching the eye; gula and 
sides of the head rather flat, the former narrowing behind, where it is indis- 
tinctly divided into two lobes by a shallow median depression, anterior mar- 
gin almost straight; propodeum finely rugulose; abdomen short ovate, 
smooth and polished; wings hyaline; length 2 mms. 
Described from one female (type) collected in Nuuanu Valley, Oahu, 
by D. T. Fullaway, March 4, 1912. 
Type: Cat. No. 78, Bishop Museum. 
79. Sterola kilauea n.sp. 
? dull shining black, legs and antennz yellowish brown, the latter fus- 
cous outwardly, the former fuscous basally, mandibles reddish at apex. 
Head and thorax with a microscopically fine and close reticulate sur- 
face sculpture; finely, shallowly and closely punctate; clothed with fairly 
long silvery hairs. Head somewhat longer than wide, widest across the 
eves, narrowing behind and in front, width between the eyes more than the 
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