Nci'^' Species of Sieroki, With Explanatory Notes. 125 



105. Sierola setosa n.sp. 



9 dull black, the head opaque ; legs and antennae brown, the femora a 

 liitlc 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 ]ninctr.aticn en the t!:i!rax liier; clothed with stiff silvery white 

 liairs. Heatl a little longer than wide, widest across the eyes, narrowm.^ 

 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 deptli beneath the pos- 

 terior end of the eye; vertical margin straight, temples rounded, eyes convex; 

 antenna? a little longer than the head, all the segments longer than wide, 

 pedicel nearly twice as long as wide, antennal fossae 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 liead ; mandibles stout, curved, concavo-convex, truncate 

 apically and toothed, base touching the eye above ; gula and sides of the 

 head convex, the fonuer 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 batraehedrae n.sp. 



9 shining brown to fuscous, prothorax and al)domen basally yellowish 

 brown ; legs, antennje and luandibles luteous. 



Head and thorax with a microscopically hne reticulate surface sculp- 

 ture ; finely, shallowly and somewhat remotely punctate ; hairy clothing 

 short and inconspicuous. Head nearly as broad as long, width between the 

 e3es 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 tlie eye ; vertical margin 

 slightly convex, temples rounded, eyes flatly convex ; antennae not much longer 

 than the head, pedicel a little longer than wide, tiie following segments all 

 as wide as or wider than long, antennal fossae 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 antennas ; luandibles slender, curved, truncate 

 apically and toothed, base touching the eye above, lower lobe protuberant ; 

 gula and sides of the head flat, the former medially foreshortened, a little 

 longer than wide, narrowing beliind, anterior margin arcuately concave, pos- 

 terior margin incised; abdomen elliptical, apically acuminate, smootli and 

 polished; wings hyaline; length 1.5 mms. 



S smaller; antenn;e more slender, the six last segments longer than 

 wide ; abdomen blimtly pointed at apex. 



Described from a series of males and females (type, allotype and para- 

 tvpes) from Palolo Ridge, Oahu, reared by O. H. Swezey, September 4, 191 1. 



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