"8 Nezv Species of Sicrola. With iixplaitatory Notes. 



Described from one female (type), collected on Tantalus Mt., Oahu, 

 1500 ft. elevation, by W. M. Giffard, AuKust 27, 1918. 

 Type : Cat. No. 12, Bishop Museum. 



13. Sierohi bella 11. sp. 



? slender, shining black, anlennie basally, pronolum and pr(jsternum, ex- 

 cept at the sides, and the legs yellowish brown, mandibles reddish apically. 

 Head and thorax with a microscopically fine surface sculpture, fairly 

 closely, finely and shallowly punctate and hairy. Head as wide as long, width 

 between the eyes considerably more than the length from eye to vertex, con- 

 vex above, tumid beneath ; vertical margin deeply concave, temples rounded, 

 eyes convex ; antennae a little longer than the head, segments of the flagellum 

 scarcely longer than wide, pedicel a little longer, antennal fossae deep ; clypeal 

 process short and somewhat spicate ; mandibles short, not very stout, curved, 

 truncate and toothed apically, base not reaching the eye; cheeks moderately 

 wide ; gula flat, wider than long, divided into two lobes posteriorly by a 

 short sulcus, median furrow nearly effaced, anterior margin arcuately con- 

 cave, posterior margin deeply incised, sides of the head slightly convex ; 

 propodeum finely aciculate ; abdomen elongate, smooth and polished ; wings 

 hyaline ; length 3 mms. 



Described from one female (type), collected in Palnlo Crater, Oahu, 

 by P. H. Timberlake, September 8, 1918. 



Type : Cat. No. 13, Bishop Museum. 



14. Sierola gracilis n.sp. 



$ slender, shining black, antenna? basally and the legs yellowish brown, 

 antennae apically and the femora outwardly infuscate, mandibles reddisli brown 

 medially and at the tips. 



Head and thorax with a fine, reticulate surface sculpture, fairly closely, 

 finely and shallowly punctate and hairy. Head considerably longer than 

 wide, width between the eyes not much greater than the distance from the 

 eye to the vertex ; convex above and somewhat tumid beneath, deepest directly 

 behind the eye ; vertical margin very slightly concave, temples rounded, eyes 

 flatly convex ; antennae reaching the mesoscutum, all the segments longer 

 than wide, antennal fossae deep ; clypeus bluntly pointed, flat on top, apically 

 depressed, extended a little beyond the anterior margin of the head ; man- 

 dibles abruptly bent at the middle, rather slender basally, flattened and much 

 wider distally, the apical margin obliquely truncate and toothed, base not 

 quite reaching the eye ; cheeks narrow ; gula and sides of the head flat, the 

 former medially foreshortened, as wide as long, median furrow very fine, 

 anterior margin arcuately concave, posterior margin incised ; abdomen 

 elongate, smooth and polished ; wings subinfuscate, with a faint yellowish 

 brown pigmentation ; length 2.5 mms. 



Described from one female (type) collected on KaunuiDlnina Ridge. 

 Oahu, by P. H. Timberlake, January 7. 1917. 



Type : Cat. No. 14. Bishop Museum. 



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