96 New Species of Sierola, With Explanatory Notes. 
48. Sierola flavicornis n.sp. 
@ shining black, almost brilliant, antennz and legs flavous 
Head and thorax with a microscopically fine reticulate, surface sculp- 
ture, finely, shallowly and somewhat remotely punctate, hairy clothing incon- 
spicuous. Head considerably longer than wide, width between the eyes 
equalling the distance from eye to vertex, length in front of the eyes not 
great; convex above, depressed in front, a little tumid beneath; vertical 
margin straight, temples rounded, eyes convex; antenne hardly longer than 
the head, pedicel a little longer than wide, following segments as wide as or 
wider than long, antennal fosse deep; clypeus carinate, apically depressed 
and slightly projecting in front of the anterior margin of the head, declivous 
at the sides, the carina extending backward on the top of the head beyond 
the base of the antenne; mandibles stout, curved, concavo-convex, truncate 
and toothed apically, base touching the eye above; gula flatly convex, me- 
dially foreshortened, as wide as long, anterior margin arcuately concave, 
posterior margin incised; abdomen elongate ovate, smooth and_ shining; 
wings hyaline; length 2.25 mms. 
Described from one female (type) collected on Tantalus mountain, 
Oahu, elevation 1300 ft., by W. M. Giffard, January 1, 1005. 
Type: Cat. No. 48, Bishop Museum. 
49. Sierola timberlakei n.sp. 
2? shining yellowish brown, often infuscate, legs, antenne and mandibles 
concolorous. 
Head and thorax with a microscopically fine reticulate surface sculp- 
ture, finely, shallowly and fairly closely punctate and hairy. Head a little 
longer than wide, widest across the eyes, narrowing behind and in front, 
width between the eyes considerably more than the length from eye to ver- 
tex; flatly convex above, depressed in front, a little tumid beneath, the 
greatest depth beneath the posterior end of the eye; vertical margin straight, 
temples rounded, eyes convex; antenne reaching the mesoscutum, segments 
of the flagellum longer than wide, the 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, sloping at the sides; 
mandibles slender, curved, apically truncate and toothed, base reaching the 
eye above; gula and sides of the head flat, the former medially foreshort- 
ened, as wide as long, narrowing behind where it is rather convex, anterior 
margin arcuately concave, posterior margin incised; abdomen ovate, smooth 
and shining; wings subinfuscate with a faint yellowish brown pigmentation ; 
length 2 mms. 
3 a little smaller, the head as wide as long, abdomen bluntly pointed at 
the apex. 
Described from eight females and one male (type, allotype and para- 
types). Type from Tantalus mountain, Oahu, mounted on pin with one 
other lacking head, both of which were specimens reared from larve of 
Batrachedra sophroniella, by O. H. Swezey. August 13. rto1t. One ¢ col- 
lected at Waiawa, Oahu, by O. H. Swezey, May 4, 1913, allotype. Two 2 9 
collected at Kalihi, Oahu, by O. H. Swezey, May 7, 1914, one @ collected on 
| 42 } 
