150 New Species of Sierohi. With Hxphuuitory Notes. 



jecliiiK in front of the anterior niar,L;in of llu- liead, slopin.y at tlie sides, the 

 carina exlentling l)ack\var(l on the top of tiie head heyond tlie l)asc of tlie 

 antenna'; niandil)les stont, eiirxid. concavo-convex, truncate apicall\- and 

 tootlied. Ixise not reacliinj^ the eye; v,\\\:\. flatly convex. I'inely and closely 

 punctate, medially foreshortened, ;is wide as Iohl; narrowing; posteriorly, 

 anterior marj^in arcuately concave, posterior margin incised ; proi)odeiini 

 very finely nigulose ; alidomen ovate, smooth and polislied ; wings suljinfus- 

 cate, with a faint yellowish Ijrown pigmentation ; length 3 mms. 



Described from two females (type and paratype) collected on Tantalus 

 Mountain, ();dm, elev.alion 1300 ft., hy \V. M. OifTard. Octol>er 15. 1905. and 

 numbered 10. 



Type: Cat. Xo. 154. P)ishop Miisenni. 



155. Sierola blaclcbiinii n.sp. 



9 shining black, the legs and antenna; brown to fuscous. 



Head and thorax with a microscopically fine reticulate surface sculp- 

 ture ; coarsely and fairly closely punctate ; clothed with short silver gray 

 hairs. Head longer than wide by a half, wndth between the eyes a little 

 more than the length from -.\ve to vertex ; fiatly convex above, a little tumid 

 beneath; vertical margin straight, temples rounded, eyes convex; antennae 

 a little longer than tiie liead, pedicel longer than wide, the following seg- 

 ments as wide as long, antennal fossae deep ; clypeus carinate, apically 

 depressed, hardly projecting in front of the anterior margin of the head, 

 declivous at the sides, the carina extending l^ackward shortly on the top of 

 the head; mandibles short, stout, curved, truncate apically and toothed, base 

 not quite reaching the eye ; gula and sides of the head flat, the former 

 medially foreshortened, as wide as long, narrowing behind, anterior margin 

 arcuately concave, posterior margin incised ; abdomen short ovate, apically 

 acuminate, smooth and polished; wings subinfuscate, with a very faint 

 ftiscous pigmentation ; length 2.5 mms. 



Described from one female (type) collected on Kau. llawaii. a-a flows, 

 3600 ft. elevation, by W. M. Giffard. July 18. 1918. 



Type: Cat. No. 155. Bishop Museum. 



156. Sierola celeris n.sy). 



9 shining l.dack. tlie legs and antennie hasally yellowish brown, hind 

 femora and antennje outwardly fuscous. 



Head and thorax to the propodetun with a microscopically Inie relicu- 

 lalt,- surface sculpture: coarsely, shallowly. fairly closely punctate, and hairy. 

 Head wider than the thorax, longer than wide I)}' a iialf. length from eye 

 to vertex equalling the width between the e\'es ; convex above, a little tumid 

 beneath, the greatest depth liehind the eye ; vertical margin straiglit, tem- 

 ples rounded, eyes flat; antennae a little longer tli.in the head, pedicel and 

 first funicle segment twice as long as wide, second a little shorter, the fol- 

 lowing segments as wide as long, antennal fossae deep; clypeus carinate. api- 

 cally depressed but rather flat, not projecting in front of the anterior margin 

 of the head, sloping at the sides; mandibles stout, curved, a little flattened 

 outwardly, truncate apically and toothed, base touching tlie eye above: gula 



1961 



