beautiful Coleopterous Insects from Silhet. \ \ \ 



Sp. 13. ZONOPTERITS FLAVITARSIS. Tab. X. fig. 7. 



Niger, antennis bicoloribus, thorace nigro-tornentoso, elytris flavo bifasciatis, 

 femoribus tibiisque atris ; tarsis flavis. 



Long. lin. 15 ; lat. lin. 4. 



Caput nigrum, fronte declivi. Antenna articulis quatuor primis atris, reliquis flavis. Tho- 

 rax Callidiiformis dorso depresso. Elytra fasciis tribus atro-tomentosis duabusque aliis 

 flavis. Corpus infra pectore nigrino, annulisque abdominis pubesccntia aurata upenis. 

 Pedes femoribus tibiisque nigris, tarsis flavis subtus spongiosis. 



The above insect appears to be the type of a new genus, and also to be, as 

 far as is known at present, peculiar to the East Indies. The nearest approxi- 

 mation, perhaps, is the Saperda clavicornis of Fabricius ; it cannot, however, 

 be arranged with any of the African longicorn beetles. A somewhat similar 

 form (allied to the above) has lately been brought to this country from Manilla 

 by Mr. Cuming, and no doubt they may eventually form genera of one and 

 the same family. As the figure is ably delineated by Mr. Westwood, the fore- 

 going short Latin characters may be regarded as sufficient to characterise the 

 form, although the manducatory organs remain undescribed. Imperfect as 

 they are, and clothed with the preservatives used, it is useless to attempt their 

 examination, as the specimen, which is unique, would probably be destroyed. 



Colobothea, Serville. 

 Sp. 14. Colobothea rubricollis. Tab. X. fig. 8. 



Rubro-picea, antennis concoloribus, elytris nigricantibus maculis flavo-ochra- 

 ceis aspersis. 



Long. lin. 15 j lat. lin. 4. 



Caput, antenna, femora, tibiaque rubro-picea?. Thorax concoior, cylindricus. Elytra nigri- 

 cantia, humeris apicibusque rufo-piceis, variolosa, variolis fortiter insculptis, maculis 

 bmis majoribus aliisque minoribus flavo-ochraceis per totum discum aspersa. Corpus 

 infra piceum, abdominis segmentis utrinque serie duplici macularum flavarum insigni- 

 tis, annulo ultimo immaculato. Pedes femoribus rubro-piceis, tibiis concoloribus, api- 

 cibus ciliatis. Tarsi quatuor anteriores supra nigro variegati, infra subaurato-spongiosi, 

 postici undique fusco-spongiosi. 



The above insect, remarkable for its size, inhabits Silhet. It diverges from 



