New Species of Sierola, With Explanatory Notes. 125 
105. Sierola setosa n.sp. 
Q dull black, the head opaque; legs and antenne brown, the femora a 
little infuscate; mandibles reddish brown except at the base. 
Head and thorax with a microscopically fine and close reticulate sur- 
face sculpture, coarser on the head; coarsely, shallowly and fairly closely 
punctate, the punctuation en the thorax finer; clothed with stiff silvery white 
hairs. Head a little longer than wide, widest across the eyes, narrowmg 
behind and in front, width between the eyes a little more than the length 
from eye to vertex, length in front of the eye not great; flatly convex above, 
depressed in front, a little tumid beneath, the greatest depth beneath the pos- 
terior end of the eye; vertical margin straight, temples rounded, eyes convex ; 
antenne a little longer than the head, all the segments longer than wide, 
pedicel nearly twice as long as wide, antennal fosse deep; clypeus 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, curved, concavo-convex, truncate 
apically and toothed, base touching the eye above; gula and sides of the 
head convex, the former medially foreshortened, wider than long, anterior 
margin arcuately concave, posterior margin incised; abdomen elongate ovate, 
smooth and polished; wings subinfuscate, with a faint fuscous pigmentation ; 
length 3 mms. 
Described from one female (type) collected on the Palolo Hill trail, 
Oahu, by P. H. Timberlake, April 9, 1916. 
Type: Cat. No. 105, Bishop Museum. 
106. Sierola batrachedrae u.sp. 
@ shining brown to fuscous, prothorax and abdomen basally yellowish 
brown; legs, antenne and mandibles luteous. 
Head and thorax with a microscopically fine reticulate surface sculp- 
ture: finely, shallowly and somewhat remotely punctate; hairy clothing 
short and inconspicuous. Head nearly as broad as long, width between the 
eyes a little more than the length from eye to vertex, length in front of the 
eyes not great; flatly convex above, depressed in front, tumid beneath, 
the greatest depth beneath the posterior end of the eye; vertical margin 
slightly convex, temples rounded, eyes flatly convex; antenne not much longer 
than the head, pedicel a little longer than wide, the following segments all 
as wide as or wider than long, antennal fossee deep; clypeus short, 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 antennze; mandibles slender, curved, truncate 
apically and toothed, base touching the eye above, lower lobe protuberant ; 
sula and sides of the head flat, the former medially foreshortened, a little 
longer than wide, narrowing behind, anterior margin arcuately concave, pos- 
terior margin incised; abdomen elliptical, apically acuminate, smooth and 
polished; wings hyaline; length 1.5 mms. 
$ smaller; antennze more slender, the six last segments longer than 
wide: abdomen bluntly pointed at apex. 
Described from a series of males and females (type, allotype and para- 
types) from Palolo Ridge, Oahu, reared by O. H. Swezey, September 4, 191. 
[71 ] 
