80 REV. H. S. GORHAM ON NEW [Mar. 6, 



11. Triplatoma GESTROi. (Plate XVIII. fig. 1.) 

 Triplatoma gestroi, Bedel, Aun. del Mus. Civ. di Geneva, 1882, 



p. 440, t. X. f. 4. 



Nigra, parum nitida, prothorace subquadrato limbo laterali suhin- 

 crassato, rubro variegato, subopaco ; elytris distincte siriaiis, sti-iis 

 obsolete punctntis, striga suhhumerali fasciisque tribus valde un- 

 dulatis hand bene discretis rufis ; femoribus rufo-cinctis. 



Long. 15-17 millim. d $ . 



Mas. tibiis anticis sinuatis, ad apicem torsis, intus carinatis. 



Hab. Borneo, Sarawak ( Wallace, coll. Lewis and Gorham, 6 ). 

 Sumatra (Leyden Mus., 5 ). 



[Since this paper has been read, and the plate drawn, I have 

 received one by M. Louis Bedel, published in the 'Annals of the 

 Civic Museum of Natural History of Genoa' in December 1882, 

 in which he has submitted the genera Coptengis, Triplatoma, and 

 Plagiopisthen to revision. The genus Trijjlatoma is subdivided and 

 its form changed to Triplotoma, which is retained for T. picta, 

 gestroi, and cyprcea. T. gestroi appears to be identical with the 

 species which I have described and figured here, and to which I had 

 given another name. I have seen specimens of this species since in 

 the British Museum and in the possession of Mr. S. Olliff. The 

 new genera proposed are Trichulus for pubescens, Cr., Eudytus for 

 bizonatus, Cr., Nesitis for attenuata, Cr., Linodesmus for cceciis, F. 

 Trichulus and Linodesmus are certainly geographical forms and 

 better separated ; but the remainder seem formed rather on specific 

 than generic differences, a process of subdivision to which most 

 genera of moderate size are equally liable, without any evident 

 advantage being secured. — H. S. G., April 10th, 1883.] 



12. Triplatoma brahminica. 



Nigra, parum nitida, supra opaca ; prothorace oblongo, crebre el 

 distincte punctato ; elytris fortiter sidcatis, interstitiis costatis, 

 sulcis punctatis, fasciis duubus angustis, undulatis, rufis, una 

 subbasilari, altera subapicali. 



Long. 21 millim. 



Hab. India, Assam. 



Head and thorax opaque, thickly covered with shallow but distinct 

 round impressed points, under surface of the thorax nearly smooth, 

 but the prosternum transversely wrinkled, its apex foveate. Elytra 

 evenly and deeply sulcate, the intervening costse smooth and shining, 

 eight in number, uniting near the apex, the fifth and sixth costae 

 uniting some distance higher up, and also joining the fourth. The 

 humerus obsolete, the apex expanded, subtruncate. Allied to T. 

 picta, Perty ; distinguished immediately by the black thorax and 

 two fasciae, deeper sulcation, &c. 



13. Triplatoma siva. 



Nigra, parum nitida, capite profhoraceque vix punctatis, fere 

 alutaceis ; elytris subsulcatis, sulcis obsolete punctatis, annulo 



