108 New Species of Sierola, With Explanatory Notes. 
71. Sterola agens asp. 
@ shining black, the legs and antenne luteous, the latter fuscous out- 
wardly. : 
Head and thorax to the propodeum with a microscopically fine reticu- 
late surface sculpture, which is very delicate on the head; finely, fairly 
closely and rather sparsely punctate; hairy clothing short and delicate. 
Head longer than wide by a half, width between the eyes a little more than 
the length from eye to vertex; convex above and beneath, depressed in 
front; vertical margin nearly straight, temples rounded, eyes flatly convex ; 
antennze not much longer than the head, pedicel more than twice as long as 
wide, first two funicle segments a little longer than wide, following segments 
as wide as or wider than long, antennal fosse deep; clypeus carinate, api- 
cally 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 stout, curved, concavo- 
convex, truncate apically and toothed, base touching the eye above; gula 
flatly convex, medially foreshortened, wider than long, anterior margin 
arcuately concave, posterior margin incised; propodeum rugulose; abdomen 
ovate, smooth and polished; wings subinfuscate; length 2.75 mms. 
Described from one female (type), collected in Nuuanu valley, Oahu, 
by D. T. Fullaway, August 20, 1916. 
Type: Cat. No. 71, Bishop Museum. 
72. Sierola pygmaca n.sp. 
@ small, the thorax and abdomen unusually short; shining black, not 
brilliant, legs and two basal joints of antenne yellowish brown, antennz 
apically fuscous. 
Head and thorax with a microscopically fine reticulate surface sculp- 
ture, a little coarser on the head; fairly coarsely, shallowly and closely 
punctate; hairy clothing short and delicate. Head wider than the thorax, 
longer than wide by a half, width between the eyes equalling the length 
from eye to vertex, length in front of the eyes not great; flatly convex 
above, depressed in front and a little tumid beneath, the greatest depth 
behind the eye; vertical margin straight, temples rounded, eyes convex; 
antenne scarcely longer than the head, pedicel twice as long as wide, follow- 
ing segments as wide as or wider than long, antennal fossz 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 antennz; mandibles stout, curved, 
concavo-conyex, truncate apically and toothed, base not quite reaching the 
eye above; gula and sides of the head convex, the former a little foreshort- 
ened medially, as wide as long, anterior margin arcuately concave, posterior 
margin incised ; abdomen depressed, short ovate, smooth and polished; wings 
subinfuscate; length 2 mms. 
Described from one female (type) collected on Cooke’s Trail, Nuuanu 
Valley, Oahu, by D. T. Fullaway, August 20, ror6. 
Type: Cat. No. 72, Bishop Museum. 
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