OF AUSTEALIAN PHYTOPHAGOUS BEETLES. 463 



oblong punctures. Scutellum oblong, its apex obtuse ; surface 

 shining, impunctate. Elytra as broad at the base as the thorax, 

 slightly narrowed towards the apes ; above convex, closely granu- 

 lose-strigose, opake, the suture and the lateral margin smooth 

 and shining ; surface regularly and distinctly punctate -striate ; 

 interspaces plane, those on the outer disk moderately convex. 

 Under surface nitidous, clothed with adpressed white hairs, front 

 surface of anterior thighs rufo-piceous. 



Btjchaeis martius. Ditropidus martiics, SufFr. MS. Oblongus, 

 niger, nitidus ; pedibus, capite (antennis extrorsum oculisque ex- 

 ceptis) thoraceque rufis, hoc convexo, fere impunctato ; elytris 

 tenuiter punctato-striatis, striis prope marginem exteriorem magis 

 fortiter impressis, interspatiis planis, externis convexis. Long. 

 1 lin. 



Sai. Moreton Bay. 



Eace faintly rugose-punctate ; eyes black, remote ; clypeus 

 sliort, transverse, separated from the face by an indistinct trans- 

 verse groove ; labrum large, its anterior border obsoletely emar- 

 ginate ; jaws prominent, stained with piceous ; five lower joints of 

 antennae obscure fulvous, the rest nigro-piceous. Thorax very 

 convex, smooth and shining, nearly impunctate, only a few fine 

 punctures being visible under a strong lens ; basal lobe strongly 

 produced, its apex entire, obtuse, covering the base of the scutel- 

 lum. Elytra regularly punctate-striate, interspaces plane, those 

 on the outer border convex. Metasternum, together with the 

 apex of the abdomen, stained with rufo-piceous, lateral margin of 

 presternum piceous. 



G-enus Poltachus, Ghapuis. 



PoLTiCHTJS MAEQiisricoLLis. Augusto oblougus, obscuro fulvUS) 

 nitidus ; supra cupreo-seneus ; clypeo, labro antennisque basi fulvis, 

 his extrorsum nigris ; thorace fortiter punctate, utrinque ante 

 basin oblique excavate, lateribus fulvis ; elytris sordide fulvis, 

 punctato-striatis, interspatiis fere planis, ad apicem et prope 

 marginem exteriorem convexiusculis ; subtus niger, tibiis, tarsis 

 femoribusque anticis quatuor fulvis. Long. 1 lin. 



Hab. "Western Australia, Swan River. 



Head minutely granulose ; eyes distant ; antennae with the 

 four lower joints obscure fulvous, the following three nigro- 

 piceous, the four upper ones black. Thorax twice as broad at 



