New Species of Sierola, With Explanatory Notes. 107 
margin slightly convex, temples rounded, eyes flatly convex; antennz reach- 
ing the mesoscutum, all the segments a little longer than wide, pedicel twice 
as long as 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 back- 
ward on the top of-the head beyond the base of the antennze; mandibles 
slender, curved, truncate apically and toothed, base not quite reaching the 
eye above; gula and sides of the head flat, the former medially foreshort- 
ened, a little longer than wide, narrowing behind, where it is somewhat 
convex, anterior margin arcuately concave, posterior margin incised; propo- 
deum rugulose, dull; abdomen ovate, smooth and polished; wings subin- 
fuscate, with a very faint yellowish brown pigmentation; length 2.25 mms. 
é smaller, head shorter, abdomen bluntly pointed at the apex. 
Described from eight females and two males (type, allotype and para- 
types). Type from Niu, Oahu, collected by P. H. Timberlake, February 10, 
1918, allotype from Kaala mountain, collected March 4, 1917. Four 2 @ col- 
lected same date, one collected July 9, 1916, and one ¢ collected July 22, 1917, 
on Kaala mountain, together with two 2 2 collected on Tantalus mountain, 
at 1500 ft. elevation, by W. M. Giffard, August 27 and December 22, 1918, 
respectively, paratypes. 
Type: Cat. No. 69, Bishop Museum. 
70. Sierola striata n.sp. 
2 shining black, antenne basally yellowish brown, fuscous outwardly, 
legs brown, the femora somewhat infuscate. 
Head and thorax to the propodeum with a microscopically fine and 
delicate reticulate surface sculpture; finely, closely, somewhat sparsely punc- 
tate: hairy clothing short and inconspicuous. Head wider than the thorax, 
longer than wide by a half, width between the eyes a little more than the 
length from eye to vertex, length in front of the eyes not great; convex 
above, depressed in front, a little tumid beneath, the greatest depth behind 
the eyes; vertical margin straight, temples rounded, eyes flatly convex; 
antenne a little longer than the head, the segments of the flagellum all 
longer than wide, the pedicel twice as long as wide, antennal fosse deep; 
clypeus carinate, apically depressed and projecting slightly in front of the 
anterior margin of the head, sloping at the sides, the carina extending back- 
ward on the top of the head beyond the base of the antenne; mandibles 
stout, curved, concavo-convex, truncate apically and toothed, base touching 
the eye above; gula and sides of the head convex, the former medially 
foreshortened, as wide as long, anterior margin arcuately concave, posterior 
margin incised; pronotum aciculate at the sides; scutellum smooth and 
impunctate; propodeum rugulose; abdomen elongate ovate, smooth and 
polished; wings subinfuscate, with a faint yellowish brown pigmentation; 
length 2.75 mms. 
Described from one female (type) collected in Palolo valley, Oahu, by 
D. T. Fullaway, August 12, 1912. ‘ 
Type: Cat. No. 70, Bishop Museum. 
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