New Species of Sierola, With Explanatory Notes. 77 
narrowing in front, width between the eyes scarcely more than the length 
from eye to vertex; vertical margin strongly concave, temples rounded, eyes 
flatly convex; antenne a little longer than the head, segments of the flagel- 
lum scarcely longer than wide, pedicel twice as long as wide, antennal fossz 
deep; clypeal process a spicate beak, horizontally extended from the anterior 
margin of the head, dorsally subcarinate, the surface smooth and flat, apex 
depressed; mandibles moderately large, curved, concavo-convex, truncate and 
toothed apically, base not reaching the eye; cheeks moderately wide; gula 
flat, medially very much foreshortened, anterior margin semicircularly con- 
cave, posterior margin deeply incised, median furrow nearly effaced; propo- 
deum rugulose, a triangular area at the base smooth; abdomen short ovate, 
smooth and polished; wings subinfuscate with a faint yellowish brown pig- 
mentation; length 3 mms. 
é with the legs and antenne basally yellowish brown, mandibles luteous, 
except at the base; head a little shorter, the sides parallel; clypeal process 
not spicate, and extending little beyond the anterior margin of the head; 
antenne more slender; wings without pigmentation; abdomen bluntly point- 
ed at the apex. 
Described from one female and one male (type and allotype), collected 
on Straussia kaduana, on Lanihuli Ridge, Oahu, 1500 ft. elevation, by P. H. 
Timberlake, September 3, 1916. 
Type: Cat. No. 10, Bishop Museum. 
11. Sierola spicata subspecies hawatiensis new subspecies. 
@ variable but generally wider between, shorter behind the eyes, with 
the surface sculpture more distinct and the punctuation of the head coarser 
than in the Oahu form. 
Described from seven females (type and paratypes). Type collected at 
Kilauea, Hawaii, 4000 ft. elevation, by W. M. Giffard, July 6, 1918. Para- 
types from Puuwaawaa, N. Kona, Hawaii, 3709-3800 ft. elev., Giffard, August, 
IQI7. 
Type: Cat. No. 11, Bishop Museum. 
12. Sierola nitida n.sp. 
@ brilliant black, antenne, tibiz, and tarsi brown to fuscous. 
Head and thorax with a delicate surface sculpture, uniformly closely 
and distinctly punctate and hairy. Head almost as wide as long, widest 
directly behind the eyes, narrowing behind and in front, width between the 
eyes a little more than the distance from the eye to the vertical margin; flat 
above, somewhat tumid beneath, deepest behind the eyes but without great 
depth; vertical margin slightly concave, temples rounded, eyes flat; antenne 
scarcely longer than the head, all the segments beyond the pedicel as wide 
as or wider than long, the pedicel a little longer than wide, antennal fossz 
fairly deep: clypeal process short and stout, bluntly spicate, convex above, 
extending little beyond the anterior margin of the head; mandibles long, 
slender, curved and toothed apically, base not quite reaching the eye; cheeks 
very narrow; gula and sides of the head flat, the former foreshortened, as 
wide as long: propodeum finely rugulose; abdomen elongate ovate, smooth 
and polished; wings hyaline; length 3 mms. 
258 
