PTTYSIMERCS. 83 



flavous instead of ashy-grey ; the females (for the most part) have 

 the elytra entirely flavous, with very faint traces, if any, of longitu- 

 dinal bands of pubescence. 



Amazon River ; Ega. Taken by Mr. Bates. In the collection of 

 the British Museum and other cabinets. 



16. Physimerus ephippium. (Tab. III. fig. 4.) B.M. 



P. ovalis, elongatus, ferrugineus, impubescens ; capite brevi, inter 

 oculos transverse et oblique foveolato, punctato, glabro ; thorace 

 quaclrato, ad basin coarctato et transverse obsolete depresso, punc- 

 tato, subtiliter pubescenti, ferrugineo ; elijtris latis, pvactato- 

 striatis, fuseis, ad humeros macula undique pallide ferruginea, 

 elytrorum etiam apice pallide ferrugineo ; antennisfiliformibus, 

 fulvis ; pedibus flavis. 



S Long. corp. 2| lin., lat. 1^ lin. 

 5 Long. corp. 2 lin., lat. 1 lin. 



Oval, elongate, slightly depressed, ferrugineous, shining. Head 

 short, transverse; eyes subprominent, distant, extending laterally 

 beyond the line of the anterior margin of the thorax : between the 

 eyes is a transverse fovea, the terminations of which are obliquely 

 inclined to the upper and inner margins of the eyes ; this fovea is 

 medially connected with the space between the insertion of the 

 antennae by a distinct longitudinal channel : the surface of the head 

 is sparingly punctured throughout and glabrous. Thorax quadrate 

 (almost elongate), at the base coarctate ; the anterior angles de- 

 pressed and subacute ; the sides subsinuate, constricted at the base 

 and finely marginate ; a broad and shallow transverse postmedial 

 depression gives prominence to the anterior surface ; the surface 

 punctate throughout, subpubescent, ferrugineous. Elytra distinctly 

 broader than the thorax, somewhat depressed, punctate-striate, fus- 

 cous, shining ; two large and somewhat irregularly- defined circular 

 spots of a pale ferrugineous colour are situated antemedially, sepa- 

 rated by the distance of two stria3 from the suture, extending late- 

 rally to the margin, and reaching obliquely to the humeral angle ; 

 the apex also of the elytra is broadly ferrugineous. Antennae fili- 

 form, fulvous. Legs flavous throughout. 



From the Amazon district. Taken by Mr. Bates. 



17. Physimerus suboculatus. 



P. oblongo-ovatus, subelongatus, rufo-fuscus ; capite brevi, inter 

 oculos Y foveolato ; thorace quaclrato, ad basin constricto et trans- 



g2 



