30 Prof. J. O. Westwood's descriptions 



If the characters of these females alone were regarded, 

 I should not hesitate to consider them as congeneric, but 

 the different condition of the legs of the males of the 

 two species indicates the necessity for their subgenerical 

 separation. (Comp. Arc. E., pi. 33, fig. \b, and my 

 pi. I. fig. 4c.) The mesosternal spine is not, however, 

 so much porrected in C. smaragduhis as in N. opahis. 

 Like the male represented in my Arcana Ent., this female 

 is of a rich green colour. 



Subfamily Ceemastocheilides. 



The characters of the two following species were intro- 

 duced into the Appendix of my Thesam-us Entomologicus 

 Oxoniensis, but no figures of them have hitherto appeared. 

 They are, therefore, now added in order to complete the 

 knowledge of the insects, for which in fact (in this difficvdt 

 group) representations are quite requisite. 



Genus Cyclidius, MacLeay. 



Cyclidinus velutinus, Westw. Thes. Ent. Oxon. App. 

 p. 204. (PL I. fig. 5.) 



Totus niger, opacus : capite parvo sub lente puncta- 

 tissimo, inter antennas bi-impresso ; mento et maxillis ut in 

 Cycl. lugubre formatis : pronoto multo latiori quam longo, 

 lateribus in medio dilatato-rotundatis, angulis posticis 

 lateralibus acutis, dorso depresso, utrinque impi-essione 

 ovali parum profunda notato ; elytris basi latis, dorso 

 planis, leviter ovali-cicatricosis ; pygidio leviter rotundato- 

 cicatricosis ; pedibus subgracilibus ; corpoi'is subtus (prte- 

 sertim ventre) rudius punctato, guttisque minutis lutescen- 

 tibus parum irrorato. 



Long. corp. lin. 9 ; lat. himier. elytr. lin. 4. 



Habitat ? In Mus. D. Parry. 



Genus Cremastocpieilus, Knoch. 



Cremastocheihi.s crassipes, Westw. Thes. Ent. Oxon. 

 p. 204. (PI. I. fig. 6.) 



Magnus, latus, supra deplanatus, niger, capite punctato, 

 clypei margine antico parum recurvo, semicirculari, mento 

 rotundato, postice integro, disco glabro; pronoto lateribus 

 rotundatis versus caput angustioribus, dorso parum con- 

 vexo, angulis anticis fere ad oculos porrectis, subacutis, 

 impressione sat profunda intra angulos notato, angulis 



