[39:3 
IV. Descriptions of some new or imperfectly known Species of Bolboceras, Kirby. 
By J. O. Wesrwoon, Esq., F.L.S. 
Read June 6, 1848. 
HAVING in two previous communications described a number of new species of Athy- 
reus, chiefly from South America, and given a synopsis of the Australian species of Bolbo- 
ceras, I shall on the present occasion continue the descriptions of the species of the latter 
genus, especially such as are natives of the East Indies. 
With the view of showing the generic as well as sexual distinctions existing between 
the Bolbocerata and Odontei, I have given figures of the head and front of the prothorax 
of both sexes of Odonteus mobilicornis and Bolboceras Æneas, Pz. (quadridens, Dftschm.) 
from Austria, together with the side of the head (showing the eyes), maxillæ and fore 
femora of both these insects. (Tas. IV. fig. 1 & 2, with the details.) 
1. BoLBOCERAS Cycıors, Fabr. Ent. Syst. i. p. 15; Oliv. Ent. i. 3. t. 15. f. 140; ferrugi- 
neus, clypeo anticè earinà transversà tuberculisque duobus acutis instructo, vertice 
lineà tenui parüm elevatá inter oculos, pronoto utrinque excavatione profundá sub- 
rotundá antic® cornu acuto alteroque minori versus medium armato; spatio inter 
cornua intermedia plano punctato; anticé lined semicirculari parium elevatá cincto 
canali vix distincto longitudinali ante scutellum terminato, elytris punctato-striatis 
striis tenuibus, tibiis anticis 8-dentatis. (Mas.)—Long. corp. lin. 9. (Tas. III. fig. 15.) 
Variat mas magnitudine cornuum capitis et pronoti necnon profunditate excavationum hujus lateralium. 
Hab. in Java, Assam, et India centrali. Muss. Hope (olim Lee) et nostr. (Hearsey). 
` Fig. 15, insectum magnitudine paullo auctum ; 15 a, caput et prothorax lateraliter visa. 
Obs. The figure and description are made from the original specimen described from 
Lee’s Collection by Fabricius, now in the Cabinet of the Rev. F. W. Hope. 
2. BoLBOCERAS GRANDIS, Hope MSS.; rufo-castaneus, capite dentibusque tibiarum anti- 
carum nigricantibus, clypeo carinà tenui semicirculari, vertice cariná transversä inter 
oculorum partem anticam, pronoto convexo carinà semieirculari ‚unesonDsgne duo- 
bus versus marginem anticum lineäque tenui longitudinali impressà media in parte 
posticà. (Foem.)—Long. corp.lin.9. (Tas. IV. fig. 3, caput et prothorax suprà visa.) 
Hab. in Indiá orientali? In Mus. D. Hope. guapa. 2: 
. Caput suprà sub lente granulosum, mandibula dextra extüs ante apicem incisa, pronotum anticè puneti 
tum, posticè læve nitidum, versus angulos posticos utrinque pron prom, Tue gus 
punctato-striata, striis ad apicem elytrorum extensis. Tibiæ anticæ 7-dentatze. rpus subtüs con- 
color, pilis fulvis hirtum. ! ir Dad ar 
Individuum e Calcutta vidi (pro fæminå sp. præcedentis, B. Cyclops, e Parisiis, a Domino Chevro 
mihi transmissum) in quo carina antica clypei magis recta et transversa evadit, — impressa 
D 
