DICEEOS. — PLATYNOCErilALUS. i i 



Of the six specimens I have seen the males are considerably 

 smaller than the females. The front tibia of the d is feebly 

 bidentate, that of the $ sti'ongly so. 



Lenr/th 11-14*5 mm. ; breadth 5-G mm. 



Bhutan : Maria Basti ; Burma : ThaiTawaddy. 



Type in coll. O. E. Janson. 



Genus PLATYNOCEPHALUS. 



Narycius, snbyenus Platynoceplialus, Westw., Travs. Enf. Soc. Lond. 

 iii, 1854, p. 07. 



Type, P. luimiltoni, Westw. 



Itanr/e. Burma. 



Prothorax about as broad as it is long, distinctly narrower than 

 the elytra across the shoulders and almost parallel-sided behind, 

 ^\'ith the base very fe«bly emarginate before the scutellum. 

 8cutellum very short, scarcely as long as its breadth at the base, 

 with the sides bisiuuate and the apex very acute. Elytra ratlier 

 straight-sided, narrowing from base to apex, with the shoulders 

 prominent and the margins a little sinuated behind the shoulders. 

 Mesosternum produced into a moderately long, sharp, conical 

 process. Maxillae moderately long, strougly tri-dentate. Mentum 

 broad and fiat, Avith the front margin nearly straight and tlie 

 posterior part dilated. 



5 . Head broad, excavated, Avith a bifid horizontal process from 

 the vertex overhanging the cavity and the clypeus not reflexed at 

 the margin, broadly excised, with the angles rather sharp. Legs 

 robust, with the front tibise broad and armed with three similar 

 oblique teeth. 



Although this is a very isolated genus, it is impossible properly 

 to indicate its generic chai'acters, for the male, which in all proba- 

 bility differs greatly from the female, is entirely unknown and it 

 cannot be determined x'i hat features are peculiar to one sex. It 

 may even prove to belong to a diff extent group from that in 

 which it is here provisionally located. The single type-specimen, 

 although discovered more than half a ceuturj^ ago, still remains 

 the only known representative of its genus. 



46. Platynoceplialus hamiltoni. 



riatynoeephalus hamiltoni, Westw., I. c. pi. 7, fig. 2. 



5 . Testaceous yellow, with the outer margins of the elytra 

 and the abdomen reddish, and the metasternum (but not the 

 mesosternal process), the tibiae, the shoulders, a lateral band 

 parallel to the outer margins of the elytra, the sutural margins 

 and the extreme margins of the head, prothorax, and scutellum, 

 black. 



