1848.] Linnean Society. 3(Jii 



March 21. 

 E. Forster, Esq., V.P., in the Chair. 



Read a Memoir " On the Australian species of the Coleopterous 

 genus Bolboceras, Kirby," By J. O. Westwood, Esq., F.L.S. &c. 



In this paper, which contains the characters and descriptions of 

 five new species of Bolboceras from Australia, Mr. Westwood passes 

 in review the various writers on the subject, and enters into some 

 critical detail on the characters which they have assigned to the 

 genus. The following are the characters of the new species pro- 

 posed: — 



1. B. (Elephastomus) KiRBii ; castaneo-ftilvus, capitis cornu antico por- 

 recto brevi truncato piano subtus in spiiiam bifidam Jiaud pvoducto, 

 vertice carina brevi transversa, protlioracis lateribus valde punctatis 

 utriiique fossulatis ; disco postice canali abbreviate loiigitudinali in- 

 structo. — Long. corp. lin. 9. 



B. (Elephastomus) Kirbii, Hope MSS. 



Hob. in Terra Van Diemen. In Mus. Hope. 



This appears to be the insect given by Mr. MacLeay as the female 

 of Elephastomus proboscideus. It is however a male, and is given by 

 Dr. Klug as a variety of the male of that species. The insect above 

 described appears sufficiently distinct as a species from the former. 



2. B. Reichii ; castaneus nitidus, capite coruu valde elongate erecto, 

 prothorace antice valde deflexo et subconcavo cornubus duebus crassis 

 longitudiue capitis porrectis lateralibus armato : singulo versus basin 

 dente obtuse erecto instructo ; prothoracis lateribus rude punctatis 

 spatioque triangulari impresso et punctato ante scutellum ; margine 

 postico pariim elevate, elytris striis gracillimis punctatis, tibiis anticis 

 extus 5-dentatis. $ . — Long. cerp. lin. 11 ; lat. prothoracis lin. 7. 



Hub. Port Essington. In Muss. Hope et Reich. 



S Bolboceras Reichii, Guerin, Voyage de la Favorite, et Iconogr. da 

 Regue An. Ins. p. 84. 



Bolboceras Kirbii 3 , Hope in Proc. of Ent. Soc, Nov. 1841, p. 43. 



5 Bolboceras Kirbii, Bainbridge in Trans. Ent. Sec- 



DifFert capite mineri, veitice in tuberculum conicum apice bifidum elevate, 

 clypeo et vertice carina tenui angulaia separatis, pronoto antice spatio 

 subhexagone piano polite, in puncta duo profunda antice lateraliter 

 desinente ; disco pone medium valde punctato, versus marginera posti- 

 cum elevate laevi, spatio ovali mediano punctato et impresso relicto, — 

 Long. corp. lin. 11. 



Hob. ad Melville Island, Mus. Hope (etiam in Mus. Gory, nunc Hope 

 cum nomine B. Reichii inscripto). 



No. XXXV. — Proceedings of the Linnean Society. 



