20 MR. WESTWOOD ON SOME NEW OR IMPERFECTLY 



pone carinam verticalem ; prominentiis in parte antica pronoti minus distinctis, lineaque longitudinali 

 postica obliterate ; capiteque corpori concolori. — Long. corp. lin. *]\. 



Obs. Captain Parry possesses a rather smaller specimen, with the central impressed lon- 

 gitudinal line of the prothorax less distinct, the lateral tubercles near its anterior angles 

 not so large, but covered with minute punctures, as is also the front of the prothorax, and 

 the front of the head has the angles more emarginate. 



3. Bolboceras SUBGLOBOSUS *, Westw. ; fere globosus castaneo-rufus, capite et pronoto 



punctatissimis, margine capitis elevato, clypei margine antico recto carinaque trans- 

 versa inter oculos, pronoto carina curvata prope marginem anticum. (Foem.) — Long, 

 corp. lin. 8^. (Tab. IV. fig. 4, caput et prothorax supra visa.) 

 Hub. in India orientali. D, Boys, in Mus. Westw. 



B. grandi valde affinis at magis globosus, capite et pronoto magis granulato-punctatis. Caput latum, 

 carina recta' transversa ad basin clypei alteraque abbreviate recta inter partem anticam oculorum. 

 Mandibular latae, dextra ante apicem profunde incisa, lateribus tenuibus, recurvis, nigris. Pronotum 

 versus marginem posticum parum laevius, carina curvata mediana prope marginem anticum, tubercu- 

 lisque duobus elevatis et sublaevibus inter carinam et angulos anticos, et impressione circulari parum 

 profunda et sublaevi in medio lateris utriusque. Elytra laevia, gracillime striato-punctata. Tibiae 

 anticae latae, dentibus 7 nigris obtusis. 



The insect which has served for the above description appears to be a female, and is 

 closely allied to the preceding. I am unable, however, to surmise whether the male is 

 one of those described in the subsequent portion of this memoir, or is still unknown. 



4. Bolboceras ftjrcicollis, De Laporte, An. Art. Coleopt. vol. ii. p. 104. No. 3 ; castaneo- 



rufus sub lente granulosus, clypeo maris quadrato piano antice bisinuato angulis late- 

 rabVbus anticis in cornua duo porrectis, pronoto postice elevato ; disco in medio cor- 

 nubus duobus erectis distantibus recurvis alterisque duobus intus concavis versus 

 angulos posticos ; canali lsevi mediano versus marginem posticum, elytris punctato- 

 striatis, tibiis anticis extus 6-dentatis. — Long. corp. lin. 10. (Tab. III. fig. 16, 17.) 



B. Lecontei, Dej. Catal. Coleopt. p. 149. 



Differt mas longitudine et magnitudine cornuum clypei et pronoti. 



Hab. in America boreali (test. De Laporte et Muss. Hope et Gory) an recte ? 



Obs. Mr. Melly possesses a specimen exactly agreeing with the male in Mr. Hope's Col- 

 lection, figured above, which he received from Comercolly, in the East Indies. He also 

 possesses a second specimen, from Thibet, very slightly smaller, having the cornuted pro- 

 cesses on the prothorax very slightly smaller, the space between the two porrected points 

 of the clypeus nearly straight, and not sinuated, agreeing in its colour with Mr. Hope's 

 Assamese specimen of B. Cyclops, except that of the tips of the spines of the fore-legs and 

 of the pronotum and clypeus, which are black. A third specimen is also in Mr. Melly's 

 Collection, from Thibet, of an intermediate colour, exactly agreeing with them in general 

 character and punctation, but having the anterior angles of the clypeus very slightly por- 



* This species, as well as Nos. 9, 22, 24, 25, 26 and 27, have been added subsequently to the reading of 

 the paper. 



