OF THE COLEOPTEROUS GENUS BOLBOCERAS. 13 



the Athyrei, must be regarded as very aberrant species in the family of which our Geo- 

 trupes is the well-known type. 



It has been thought advisable that a continuation of this paper, containing descriptions 

 of many additional new species of Bolboceras from India and other foreign regions, should 

 be published as a distinct memoir, which accordingly appears as the following article. 



1. Bolboceras (Elephastomus) proboscideus, MacLeay, ut supr. citat. 



? Bolboceras Australasia, Kirby, loc. cit. 



Obs. Caput et pronotum delineavi in Tab. III. fig. 1. ex individuo typico in Musaeo Societatis Entomo- 

 logical Londinensis. 



Obs. 2. Figura maris in opere Griffith's Animal Kingdom, Ins. pi. 40. fig. 4, 4 a, 4 b. 



Obs. 3. Varietatem maris (cum foemina Bolb. Australasia omnino congruenti copula captam) Societati 

 Entomologica? Londinensi communicavit D. F. Cox. Caput maris cornu perpendiculari infero caret, 

 angulo parvo prominente locum ejus occupante. 



2. Bolboceras (Elephastomus) Kirbii ; castaneo-fulvus, capitis cornu antico porrecto 



brevi truncato piano subtus in spinam bifidam haud producto, vertice carina brevi 

 transversa, prothoracis lateribus valde punctatis utrinque fossulatis ; disco postice 

 canali abbreviate longitudinali instructo. — Long. corp. lin. 9. (Tab. III. fig. 2.) 



Bolb. {Elephastomus) Kirbii, Hope MS. 



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



El. proboscideo minor, corpus castaneo-fulvum. Caput elongatum; vertice carina transversa, quasi e 

 tuberculis conjunctis formata, in medio instructo ; parte ante carinam porrecta subquadrata gra- 

 nulosa antice parum latiori apice utrinque recte truncato, cornu antico abbreviato piano, antice por- 

 recto, apice truncato arcuato. Caput subtus parte antica tumida ; clypeo deflexo, labro ad apicem 

 ejus affixo. Mandibular angustae, fere similes, apice acuto denteque parvo subapicali armatae. Pro- 

 thorax antice laevis, nitidus ; lateribus punctatis et utrinque fossula rotundata instructus ; disco ante 

 medium carina tenui transversa (in medio interrupts) canalique tenui punctato longitudinali pone 

 medium ante marginem posticum obliterato. Elytra striato-punctata ; striis 14 in singulo elytro ad 

 apicem elytrorum extensis. Tibiae anticae dentibus 6 nigris extus armatae. 



Fig. 2 a, caput et pronotum supra visa ; 2 b, caput a latere ; 2 c, labrum ; 2 d, mandibulas ; 2 e, maxilla *; 

 If, laciniae labii cum palpis labialibus. 



This appears to be the insect given by Mr. MacLeay as the female of Elephastomus pro- 

 boscideus. 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, however, to me to be sufficiently distinct 

 as a species from the former f. 



3. Bolboceras Beichii ; castaneus nitidus, capite cornu valde elongato erecto, prothorace 



antice valde deflexo et subconcavo cornubus duobus crassis longitudine capitis por- 

 rectis lateralibus antice armato : singulo versus basin dente obtuso erecto instructo ; 

 prothoracis lateribus rude punctatis spatioque triangulari impresso et punctato ante 

 scutellum ; margine postico parum elevato, elytris striis gracillimis punctatis, tibiis 



* The upper division of the inner lobe is multispinose ; Dr. Klug has represented it as distinctly bifid in both sexes 

 of B. Australasia. 



t The variety of the preceding species, wanting the perpendicular horn in front of the mouth, received since this 

 sheet has been in type, seems to confirm Dr. Klug's opinion. 



