Zoological Society. 63 



Copt, biguttatus, thorace mutico,ferrug'meus, ehjtris ant'tce jiunc- 

 tato-rugosis, testaceo-macidatis, bldentatis macula Jlava. 

 Long. lin. S ; lat. lin. 2. 



I received this insect from Mr. Donovan, and therefore have no 

 doubt respecting the individual species. The elytra, according to the 

 above description, can scarcely be considered as bidentate ; they 

 appear as if they were abruptly broken oiF at their apex. 'J'he sexes 

 vary very much in size. 



Sp.*2. CoPTOCERcus SEXMACULATrs. Cop/. Jiig'er; anlennis brunneis ; 

 thorace tuberculato et rugose ; elijtris G maculis luteis notatis, 

 pedibus rufesceniibus. Caput atrum antennis brunneis. Thorax 

 utrinque denticulutus, incequalis, rugosus, tuberculatus, macula 

 media elcvata et glabra. Elytra nigra antice varioloso-puuctata, 

 postice punclis minoribus. Sex-maculuta, macula 1 '"'' lutea paullo 

 infra basin, 2^^ fere media seu melius fasciata, 3''^ apicali pal- 

 lidiore. Corpus infra cinereo-piceum ; pedibus rufo-brunneis. 

 Long. lin. 7 ; lat. lin. 1|. 



This species, which appears to have escaped the notice of ento- 

 mologists, is abundant. I suspect that the male sex will have the 

 denticulation on each side of the thorax more marked than in the 

 female described, 



Sp. 3. CoPTOCERCus UNiFASCiATUS. Copt. atcr thorace incequali 

 tuberculato, elycris nigris punctatis, et flavo-fasciatis, punctis 

 ternis, maculisque minutis in singulo, inter basin et medialem 

 fasciam positis. Corpus infra rubro-jiiceum ; jjedibus concolori- 

 bus, aureo-tomentosis ; abdomine nigro, et nitido. 



Long. lin. 6; lat. lin. 1^. 



The above insect I received from Captain Roe, of the Swan River 

 Settlement in New Holland. 



Section 4. Denticolles. 

 Antennis tomentosis, thorace utrinque spinoso ; dorso dentato ; 

 elytris apice obtusis. 



Gen. Trachelorachys*, Nov. Gen. 

 Type of the Genus, Stenochorus fumicolor. 



Caput exsertum, oculis prominentibus, antennis corpore breviori- 

 bus. Palpi maxillares mandibulis longiores. Antenna 11 -ar- 

 ticulatse, l™° cylindrico parum deformi ad basim tenuiori et 

 externe crassiore, 2'^° brevi subcyathiformi, reliquis fere sequa- 

 libus, at extimo minori, apice attenuate. Thorax convexus 

 utrinque spinosus, disco spinis armato. Elytra thorace quad- 

 ruple longiora, depressa, ad apicem obtuse rotundata et inermia. 

 Pedes simplices, femoribus haud incrassatis. 



Hab. In Nova Hollandia. 



Trachelorachys fumicolor. Trach. f usee nig er ; thorace utrin- 

 que spinoso, disco spinis quatuor fere in medio armato. Elytra 

 parallela marginibus undique elevatis ad basim crebre granu- 



* The above word is formed of r^mXi'^'Ko;, collum, and qxx'it <* spine. 



