196 FAUNA HAWAIIENSIS 



ventral segment is dull ; there are a few punctures on the flanks of the prothorax, but 

 none elsewhere. 



Four specimens, all females. Three of them are old specimens much worn and 

 broken, the fourth is very immature and shrivelled. 



Hab. Oahu : Kawailoa gulch near the head of the left (or south) branch ; from 

 rocks in the stream, April 1893 (Perkins). 



(2) Anchotcjflus elegans, sp. nov. 



Piceus, antennis, palpis pedibusque dilute rufis ; capite vertice subobsolete punc- 

 tato ; thorace subquadrato, angulis posterioribus perobtusis, dense fortiterque punctato ; 

 elytris sulcatis, sulcis fortiter crenato-punctatis, interstitiis elevatis aequalibus. Long. 

 8^ mm. 



Head shining, eyes prominent, vertex with numerous subobsolete punctures on 

 each side, in the middle the punctures less numerous and distinct. Thorax much 

 narrower than the elytra, a little narrowed behind, hind angles obtuse, front angles 

 slightly prominent, rounded ; the surface with remarkably coarse, close punctuation. 

 Elytra shining, each with eight or nine deep grooves extending quite from base to apex, 

 the grooves are strongly punctured with incomplete punctures, and the interstices — 

 differing little from one another — are rather narrow and strongly elevated ; the inner 

 portion of the basal margin is indistinct. Under-surface shining, with some large 

 punctures about the sides, abdomen impunctate, the first ventral segment obliterated, 

 the others only moderately deep. 



Hab. Kauai : on the high plateau, August 1896 (Perkins). 



P.SEUi)OBKOSCUs, gen. nov. 



Corpus convexuni, elytrorum humeris fere nullis ; prothorax angustus, immargin- 

 atus, ad angulum posteriorem seta erecta munitus ; elytra margine basali fere nulla ; 

 tarsi posteriores minus graciles, supra glabri. 



This genus is readily distinguished from all except Derobroscus by the unmargined 

 edges of the thorax. From Dcrobrosnts it is distinguished by the presence of a thoracic 

 sense-seta, and by the robust build and comparatively thick tarsi. In general ap- 

 pearance it resembles Manna, which however has margined sides to the prothorax. 



(i) Pseudobroscus leiitiis, sp. nov. 



Piceus, antennis, palpis pedibusque rufis ; convexiusculus, sat nitidus ; prothorace 

 basin versus angustato impunctato, utrinque intra angulum posteriorem impression 



