98 Mr. F. P. Pascoe on Additions to 



Isostira crcnata. 



I, supra nigra, infra rufo-castauca ; antennis pcdibusquc rufis ; pro- 

 thorace lateraliter crenato ; elytris acute costatis. 



Hah. Queensland (under bark of decaying trees). 



Oblong, black above ; head vertical, rather finely and closely 

 punctui-ed ; eyes nearly entire ; prothorax covered with a dull 

 brownish exudation, its sides distinctly crenated, the disk 

 raised and having anteriorly two short strongly elevated lines 

 or ridges ; scntelluni rounded behind, indistinct ; elytra glossy 

 black (from abrasion?), each with five narrow sharply elevated 

 ridges and a prominent line at the margin separating the epi- 

 pleura from the upper portion, intervals of the ridges Avith two 

 lines of shallow foveee ; body beneath reddish chestnut ; legs 

 and antennae pale reddish. Length 3 lines. 



Omolij)us^ cyaneus. 



0. supra cyaneus, nitidus, infra fusco-castaneus, antennis pedibusque 

 rufis glaberrimis ; elytris fortiter seriatim at coufertim punctatis. 



Hab. Nicol Bay. 



Very dark glossy blue above ; head and prothorax very 

 smooth and finely punctured ; the latter a little gibbous ante- 

 riorly, the sides well rounded, the base and apex of nearly 

 equal breadth ; scutellum triangular ; elytra rather narrowly 

 ovate, strongly seriate-punctate, the punctures approximate, 

 the intervals of the lines very narrow and convex ; body be- 

 neath brownish chestnut, very glabrous ; legs and antennas 

 reddish, smooth. Length 4| lines. 



Mr. Masters also finds this species at King George's Sound, 

 under the bark of growing trees. It is at present the only 

 one known not entirely black above. 



Pterohela'us f arcanus. 



P. latissime ovatus, brxmneo-piceus, paulo nitidus ; elytris siugulatim 

 unicostatis, lineisque subelevatis granulatis instructis, marginibus 

 late foliaceis. 

 Hab. Queensland (Port Denison, under bark of living trees). 



Broadly ovate, brownish pitchy, slightly nitid ; head im- 

 punctate ; the clypeus, marked off by a fine line, broad and 

 rounded anteriorly ; prothorax very short, deeply and nar- 

 rowly emarginate at the apex, the middle of the disk with tAvo 

 conspicuous fove£e ; scutellum transversely triangular ; elytra 

 moderately convex, with broad foliaceous margins raised and 

 thickened at their edges, each elytron with a glossy elevated 



* Pascoe, Jouru. of Ent. i. p. 127. 

 t Tie Breme, Essai &c. p. 27. 



