140 New Species of Sierola, With Explanatory Notes. 
Described from one female (type) collected at Kilauea, Hawai, dry 
forest, 4000 ft. elevation by W. M. Giffard, August I, I91T. 
Type: Cat. No. 134, Bishop Museum. 
135. Sicrola pembertoni n.sp. 
9 dull shining black, legs and antennal scape brown, antennz outwardly 
infuscate. 
Head and thorax to the propodeum with a microscopically fine and 
delicate reticulate surface sculpture; closely, shallowly and finely punctate, 
and hairy. Head almost as wide as long, width between the eyes greater 
than the length from eye to vertex; flatly convex above, convex beneath; 
vertical margin straight, temples rounded, eyes convex; antenne a little 
longer than the head, the pedicel twice as long as wide, the following seg- 
ments hardly longer than wide, antennal fosse deep; clypeus 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 stout, curved, 
concavo-convex, truncate apically and toothed, base not quite reaching the 
eye; gula flat, medially foreshortened, as wide as long, anterior margin 
arcuately concave, posterior margin incised, sides of the head convex; pro- 
podeum very finely rugulose; abdomen ovate, smooth and polished; wings 
subinfuscate, with a faint yellowish brown pigmentation; length 2.25 mms. 
Described from one female (type) collected on Tantalus Mountain, 
Oahu, 1300 ft. elevation, by W. M. Giffard, February 12, 1905. 
Type: Cat. No. 135, Bishop Museum. 
136. Sierola lacessita n.sp. 
@ dull shining black, legs yellowish brown, antenne yellowish brown 
to fuscous. 
Head and thorax with a microscopically fine reticulate surface sculp- 
ture, coarser on the head; coarsely, shallowly and fairly closely punctate, 
the punctuation finer on the thorax; clothed with silvery white hairs. Head 
nearly as wide as long, width between the eyes greater than the length from 
eye to vertex; convex above, depressed in front, a little tumid beneath; ver- 
tical margin straight, temples rounded, eyes 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, declivous at the sides, 
the carina extending backward on the top of the head beyond the base of 
the antenne; mandibles fairly stout, curved, concavo-convex, truncate api- 
cally and toothed, base not reaching the eye above, lower lobe protuberant ; 
gula and sides of the head flatly convex, the former medially foreshortened, 
as wide as long, anterior margin arcuately concave, posterior margin incised, 
median groove nearly effaced; abdomen elongate ovate, smooth and _ pol- 
ished; wings subinfuscate; length 2.5 mms. 
Deseribed from one female (type) collected at Lanihuli, Oahu, by P. H. 
Timberlake, September 3, 1916. 
Type: Cat. No. 136, Bishop Museum. 
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