﻿60 Major Parry's Catalogue 



A single $ specimen of this interesting new species was re- 

 ceived from Sarawak, Borneo, and is provisionally placed with 

 the gcnn^ j^gus, differing, however, in the short convex character 

 of the elytra, and more especially in the singular trilobate lateral 

 margins of the prothorax. A knowledge of the other sex of this 

 species might possibly throw some light as to whether it might be 

 regarded as the type of a new genus. 



Platycerus Caucasicus $, Parry. 



P. caeruleus, nitidus ; capite parcius punctato, antrorsum pro- 

 funde emarginato, impresso ; mandibulis elongatis, capitis 

 fere longitudine, curvatis, supra sulcatis, extus prope basin 

 angulatis, intus ad basin dente obtuso parvo instructis ; pro- 

 thorace transverso, angulis anticis prominulis, deflexis, late- 

 ribus sinuatis, angulis posticis obtusis, parcius sat fortiter punc- 

 tato ; elytris elongatis, parallelis, punctatis, leviter lineatis ; 

 corpore subtus nigro ; tibiis anticis minute dcnticulatis, 

 quatuor posticis inermibus. 



Long. corp. (mandib. inch) lin. Gg. 



Hab. in Caucaso. Coll. Mniszech et Parry. 



Readily distinguished from its European ally, P. Caraboides, 

 by its narrower and more convex form, its prominent and more 

 slender mandibles, its impressed and sparsely punctate head, the 

 sinuate lateral margins of the prothorax, the obtuse posterior 

 angles and punctuation of that segment, and, finally, by its more 

 parallel and sparsely punctate elytra, the interstices being smooth. 



Platycerus c;erulkscens $ , Leconte, Proc. Acad. Nat. Science, 

 Philadelph. 1861, p. 3\:5, 



P. ccerulescens $ , niger ; capite thoraceque parce grosse punc- 

 tatis, hoc transverso, lateribus antice rectis, paulo convergenti- 

 bus, pone medium inflexis, angulis posticis obtusis, baud 

 rotundatis ; elytris nigro-cyaneis, punctis striatim digestis, 

 interstitiis irregulariter subseriatim punctatis ; mandibulis 

 sursum incurvis, dente interno pone apicem alteroque superno 

 armatis. 



Long, (mandib. inch) unc. 'IS. 



Hab. California. In Mus. Dom. Leconte. 



Platycerus Acassii $, Leconte, Proc. Acad. Nat. Science, 



Philadelph. 18G1, p. 345. 

 P. /fgassii $, elongato-ovalis, supra obscure ccncus; capite 

 thoraceque sat dense punctatis^ hoc linea dorsali la;vi, latitu- 



