86 Nczv Species of Sierola, With Explanatory Notes. 



tumid beneatli. the greatest depth, henealli tlie pnslerinr end of the eye, at 

 least two-tliirds the lengtli ; vertical niar.nin straiylit. temples rounded, eyes 

 convex ; antenn.e reaching tlie nicuscutum. all llie segni-ents of the flagelluni 

 longer tlian wide, the pedicel more than twice as long as wide, antennal 

 fossse deep ; clypcus short, medially longitudinally elevate and sloping at the 

 sides, depressed apically and slightly projected in front of the anterior mar- 

 gin of the head ; mandibles slender, curved, concavo-convex, toothed api- 

 cally, base nearly reaching the eye above; gula and sides of the head flat, the 

 former medially foreshortened, considerably wider than long and somewhat 

 protuberant behind where it is divided into two lobes by a wide and shallow 

 sulcus ; propodeum rugulose, flat on top, declivous behind and at the sides, 

 the margins distinct ; abdomen elongate ovate, smooth and polished ; wings 

 subinfuscate, with a faint yellowish brown pigmentation: length 2.5 mms. 



Described from one female (type) collected on Kaala mountain, Oahu, 

 2500-3000 feet elevation, by P. H. Timberlake, July 22, 1917. 



Type : Cat. No. 28, Bishop Museum. 



29. Sierola peleana n.sp. 



$ shining black, almost brilliant, legs and antennal scape flavous. the 

 flagellum fuscous ; mandibles reddish brown. 



Head and thorax with a microscopically fine reticulate surface sculp- 

 ture ; finely, shallowly, and remotely punctate ; sparingly clothed with short 

 stiff white hairs. Head a little longer tlian wide, width between the eyes 

 more than the length from the eye to the vertex ; flatly convex above, 

 depressed in front, tumid beneath, greatest depth beneath the posterior end 

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

 reaching the mesoscutum, all the segments considerably longer than wide, 

 the pedicel and first funicle segment twice as long as wide, antennal fossae 

 deep ; clypeus short, medially elevate and sloping at the sides, depressed 

 apically and slightly projected in front of the anterior margin of the head; 

 mandibles stout, bent in the middle, the distal portion twisted and flattened, 

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

 the head flatly convex, the former medially foreshortened, as wide as long, 

 anterior margin arcuately concave, posterior margin incised ; propodeum 

 rugulose; abdomen ovate, smooth and polished: wings subinfuscate; length 

 3 mms. 



Described from three females (type and paratypes). Type collected on 

 Kaala mountain, Oahu, 2000 ft. elev., on Pclea clusiaefolia, by P. H. Timber- 

 lake. Marcli 4, 1917. Two specimens collected on Niu Ridge, Oahu, In' P. H. 

 Timberlake, February 10, 1918, paratypes. 



Type : Cat. No. 29, Bishop Museum. 



30. Sierola kaala n.sp. 



$ moderately flat and elongate ; dull black on the head, thorax a little 

 more shining, abdomen brilliant; antenna? and legs brown to fuscous, anten- 

 nae fuscous outwardly, legs basally from the apex of the femora. 



Head and thorax to the propodeum with a microscopically fine reticu- 

 late surface sculpture, a little coarser on tlie liead than on the thorax; 



f .^2 1 



