of the Suhfamilij Dyiiastina;. 2G5 



bitubcrculato ; pronoto antice utrinque paulo excavato ct supra 

 processu liorizontali brevi, antice truiicato, munito : 



$ , capite bitubcrculato, pronoto antice transverse cariuato. 



Long. 22*5-28 mm.; lat. max. 11-5-14 mm. 



Ilab. Dutch New Guinea: Utukwa R. [A. F. R. Wol- 

 laston) ; Mt. Goliatli (60wU-7O0O feet— ^. S. Meek). 



Like /■*. trinodosa and uninodtSf Frell, this is a narrow- 

 botlicd species, but it is considerably larger tliuii either and 

 quite difterent in its nrniature. The liead is very smooth 

 and the ely|}eus sharply bidentate in trout, but the teetli do 

 not diverge, the sides of the elypeus are almost straiglit and 

 uniformly convergent, and its front margin strongly excised. 

 Upon the clypeal suture, wiiich is strongly bent forwards, 

 the female bears two sharp conical tubercles placed close 

 together, and the male a short horn, broad at the base, flat- 

 tened or slightl}'' excavated behind and slightly bifid at the 

 end. The prouotuni, like the head, is almost im[)unctate, its 

 sides are strongly rounded and finely margined, the front 

 angles acutely produced, and the hind angles rounded off. 

 In the male there is a horizontal process anteriorly, truncated 

 in front, nearly vertical in the middle, and not reaching 

 beyond the front n)argin. Just within the latter there is a 

 slight rugose excaviition on each side. 



in the female the thoracic process is represented by a 

 transverse carina a little behind the front margin, the inter- 

 vening space being finely punctured. The scutellum is 

 smooth and the elytra are broadly sulcate, with ocellat(;d 

 punctures in the sulci. Tlie latter do not reach the end of 

 the elytra, the posterior outer margins of which are finely 

 punctured. The pygidiiun is finely and densely punctured 

 except at the middle and apex. The front tibite bear three 

 strong teeth, the uppermost one rather remote from the otiier 

 two, which are close together. 



Onycuionyx, gen. nov. 



Corpus elongatum, parallelum, nudum, pedibus absque spinis, sod 

 tibiis omnibus extus dentibus tribus lortibus culcaribusque 

 validis, acutis, armalis, tibiarum anticarum dentibus obliquis 

 collocatis, tarsis mouiliformibus, articulis basalibus baud spinosis, 

 unguibus valde curvatis, baud divergentibus, onychio longo, 

 eurvato, baud setoso. Clypous transversus, margineantico medio 

 bidentato, tuberculisque duobus iu carina trontali. Mentuoi 

 couvcxuni, antice angustatum, truncatum, palpis crassis. Maxilise 

 acute 6-deiitat8e, dentibus 3 inieris connatis. MandibuUu intus 

 ct extus dense setosje, aj)ice subito intus inqiiinato. rrosteruum 

 antice et postice i>roductum. 

 cJ ct $ vix dissimiles. 



