New Species of Sierola, With Bxplanatory Xotes. 



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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 ; antennze a little longer than the head, segments of the flagel- 

 lum scarcely longer than wide, pedicel twice as long as wide, antennal fossse 

 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. 



$ with the legs and antenna; basally yelhnvisli brown. mandil)les 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 ; 

 antennas 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. 



II. Sierola spieata stibspecies hawaiieiisis new sul:)species. 



9 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, 3700-3800 ft. elev., Giffard. .August. 

 1917. 



Type: Cat. No. 11. Bishop Museum. 



12. Sierola nitida n.sp. 



$ brilliant black, antennas, tibiae, and tarsi brown to fuscous. 



Head and thorax with a delicate surface sctilpture, 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 ; antennae 

 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 fossse 

 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 hvaline ; length 3 mms. 



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