462 Mr. F. P. Pascoe on some new or little-hnown 



produced ; scutellum subtriangiilar ; elytra lineate-punctate, the punc- 

 tures small, the lines rather widely apart ; body beneath and legs black, 

 shining ; tarsi ferruginous. Length 5-6 lines. 



At once distinguished from P. striato-pimcfatus, Bois., and P. 

 Kollari, de Breme, by the broad semicircular emargination of the 

 apex of the prothorax. From the former, which it more nearly re- 

 sembles, it may also be known by the nearly impunctate prothorax, 

 and the elytra more decidedly lineate-punctate, not irregularly punc- 

 tured on the disk. Dr. Boisduval's name is apt to mislead, as there 

 are no striae. 



Pterohelceus servus. 

 P. oblongus, glaber, obscure fuscus ; prothorace apice anguste sed profunde 

 emarginato, in medio linea impressa ; elytris prothorace paulo angusti- 

 oribus, striato-punctatis, striis approximatis. 

 Hab. Victoria. 



Narrower than P. siljjhoides *, De Br., with the prothorax a little wider 

 than the elytra, its apex more deeply and squarely emarginate — not 

 semicircular — and the narrowly impressed line in the middle more 

 strongly marked ; elji;ra striato-piinctate, the striae approximate ; body 

 beneath and legs glossy chestnut-brown ; sides of the abdominal seg- 

 ments wrinkled. Length 7 lines. 



Pterohelceus memnonius. 



P. oblongus, glaber, niger, subnitidus ; capite angusto ; oculis magnis, 

 subapproximatis ; prothoracis marginibus subtiliter corrugatis ; elytris 

 lineato-pimctatis. 



Ifab. South Australia (Adelaide). 



Oblong, glabrous, black, slightly nitid ; head finely punctured, nar- 

 rowed ; the eyes large and subapproximate, the distance between them 

 in front being rather more than the length of their shortest diameter ; 

 prothorax finely punctured, its margins minutely waved ; elytra closely 

 lineate-punctate, the punctures well marked, the margins very narrow ; 

 body beneath and legs black, shining ; tarsi and lip with ferruginous 

 hairs. Length 11 lines. 



A large species resembling P. silphoides ; but the narrow head, 

 large eyes, and fine waved lines on the margins of the prothorax will 

 differentiate it from all its congeners. 



PteroJielceus hullatus. 

 P. angusto-oblongus, rufo-brunneus vel fuscus ; prothorace subtiliter 



punctato ; elytris submulticostatis, costis granulatis. 

 Hah. South Australia (Queensland). 



* M. Lacordaire puts this species under Saragus ; but it is winged, with the 

 usual correlation of a long metasternum. 



