of Australian Coleoptera. 



cxv 



Family— RHAGIOMORPHID.E. 

 Genus— Teitocosmia, Netvman. 



Generi nostra Rhagiomorpha /or^ nimls affinis at differt antennarum articulo 3tio 

 fasciculo apicali ornatojemoribus brevioribus pedetenthn tumtdis. 

 Of this genus the first-described species, Roei of Mr. Hope, should doubtless stand at 

 the head, that which I am about to notice being probably nothing more than a variety 

 or a different sex. It should be observed that Mr. Hope's allocation of T. Roei under 

 the genus Stenoderus appears scarcely warranted by its structure; Stenoderus has 

 the eyes small and circular after the manner of certain Leptundee ; Tritocosmia 

 large and reniform after that of the major part of the Cerambycid* ; Stenoderus has 

 the antenna simple, Tritocosmia has the first joint elongate externally mcrassated, 

 and the remainder attached at an angle or elbow ; the thud joint in Stenoderus is 

 without ornament, in Tritocosmia it is furnished at the apex with a conspicuous tuft 

 of black hairs : the structure of the prothorax is also decidedly different, that of ln- 

 tocosmia having a stout lateral tooth altogether wanting m Stenoderus. 



Teitocosmia atricilla. 



Nigra, elytris 4-carinatis, Ueti testaceis, apice nigris, scutello lanugine bred nigerrimo 

 dense obsito ; profemoribus, mesofemoribusque Iceti testaceis, apicibus tantum 

 nigris. {Corp. long. '9 unc. Elytrorum lat. max. -225 unc.) 

 Hab.— New Holland. In Mr. S. Stevens's collection. 



Family — CerambycidjE. 



CeRAMBYX? LAT1VITTA. 



Fuscus, elytris impunctis, obsoletissimi bicarinatis, vitta laid communi ante apicem 

 desinente albidd. {Corp. long, 11 unc. Elytrorum lat. max. -325 unc.) 



Head and prothorax umber-brown and shining ; head finely punctured, depressed 

 between the bases of the antenna, and impressed with a longitudinal fovea on the epi- 

 cranium ; antenna moderately distant, seated on slight elevations nearly as ong ^as 

 the body, 11-jointed, simple, slightly downy, and slightly hairy, the joints follow the 

 normal relative proportion as regards length, the apical joint being sesquialterous -. 

 eyes large, prominent, notched in front at the base of the antenna : prothorax slightly 

 wider than the head, its lateral margin armed with a stout obtuse median tooth an 

 impressed line near and parallel to both its anterior and posterior margins its disk 

 distinctly but not strongly punctate : elytra wider than the prothorax, rounded at the 

 shoulders, flattened dorsally, irnpunctate and having two indistinct ridges on each, 

 rounded at the apex and entirely unarmed, umber-brown with the exception of a 

 hroad yellowish-white dorsal stripe or vitta common to both, this commences at the 

 base, and is there as wide as the prothorax, but it decreases very gradually in width 

 and ceases altogether before the apex ; legs below the average size and length, sim- 

 ple, femora scarcely incrassated externally : under side ferruginous-brown. 

 Hab.— North Australia. In Mr. Stevens's collection. 



