130 New Species of Sierola, With Explanatory Notes. 
Described from one female (type) collected on Kaala Mountain, Oahu, 
by O. H. Swezey September 7, 1913. 
Type: Cat. No. 114, Bishop Museum. 
115. Sterola mandibulata n.sp. 
2 particolored, the head and posterior half of the thorax shining black, 
prothorax, mesoscutum and abdomen yellowish brown; legs luteous, 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, a little coarse, but shallow, on the head; coarsely, 
shallowly and fairly closely punctate; clothed with short, stiff white hairs. 
Head nearly as wide as long, width between the eyes greater than the length 
from eye to vertex, length in front of the eyes not great; convex above, a 
little tumid beneath; vertical margin straight, temples rounded, eyes convex; 
antenne reaching the mesoscutum, all the segments with the exception of the 
second and third of the funicle longer than wide, pedicel and first funicular 
segment nearly twice as long as wide, antennal fosse deep; clypeus short, 
carinate, apically depressed and projecting slightly in front of the anterior 
margin of the head, declivous at the sides, the carina extending backward 
shortly on the top of the head; mandibles stout, bent and twisted at the 
middle, the distal portion flattened, truncate apically and toothed, base touch- 
ing the eye above; gula and sides of the head flatly convex, the former a 
little foreshortened medially, as wide as long, anterior margin arcuately con- 
cave, posterior margin incised; propodeum finely rugulose; abdomen elon- 
gate ovate, smooth and polished: wings subinfuscate, with a faint fuscous 
pigmentation; length 2.75 mms. 
Described from one female (type) collected on Niu Ridge, Oahu, by 
P. H. Timberlake, February Io, 1018. 
Type: Cat. No. 115, Bishop Museum. 
116. Sverola tuberculata n.sp. 
@ shining black, the legs and antennze yellowish brown to fuscous. 
Head and thorax to the propodeum with a microscopically fine and 
shallow reticulate surface sculpture; fairly coarsely, shallowly and remotely 
punctate; clothed with fairly long silvery gray hairs. Head as wide as long, 
width between the eves twice the length from eye to vertex; convex above, 
tumid beneath, the greatest depth beneath the posterior end of the eye; ver- 
tical margin straight, temples rounded, eyes flatly convex; antenne reaching 
the mesoscutum, all the segments longer than 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, sloping at 
the sides, the carina extending backward shortly on the top of the head; 
mandibles fairly stout, bent at outer third, truncate apically and toothed, 
base touching the eye above, lower lobe protuberant; gula and sides of the 
head flat, the former medially foreshortened, wider than long, narrowing 
behind, where it is divided into two lobes by a deep median sulcus, anterior 
margin arcuately concave, posterior margin incised; propodeum rugulose; 
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