512 REVISION OF THE AUSTRALIAN SPECIES OF BOLBOCERAS, 



nearer to each other in front than at their base. The extremities 

 of the clypeal elevation as well as its middle are quite strongly 

 upturned, so that (especially when looked at obliquely from 

 behind) it appears trituberculate (as in the species I have called 

 B. ylobuli/orme, Macl. '?). The frontal elevation, consisting of 

 two strong tubercles joined by a scarcely raised carina, resembles 

 that of B. Icevipes, Blackb. Its prothoracic concavity is not 

 unlike that of B. Loweri, Blackb., but is much larger, especially 

 wider. The extero-front angle of the clypeal wings is a little 

 better defined than in B. ma7idibulare. 

 N. Queensland (Mr. Koebele). 



B. Basedowi, sp.nov. 



FeminaC?). Breve; subrotundatum; satnitidum; supra glabrum; 

 subtushirsutum; obscure piceo-rufum; mandibulosinistro(superne 

 viso) extus vix sinuato; capite fere ut B. mandihularis, Blackb. 

 (ejusdem sexus) sed marginibus frontalibus ante alas frontales 

 elongatis (quam ala3 vix brevioribus) sat convergentibus, alarum 

 frontalium angulis extero-anticis minus rotundatis; prothorace 

 fortiter transverso, supra (partibus lateralibus sat crebre minus 

 acervatim punctulatis exceptis) fere Isevi, antice retuso (parte 

 retusa sat triangulari in medio longitudinaliter linea profunde 

 impressa) utrinque supra partem retusam fovea sat brevi oblique 

 leviter impresso, parte postica aequaliter convexa; scutello Isevi; 

 elytra subtiliter 15-punctulato-striatis, striis 14^ 15^que baud 

 inter se confluentibus (9^ antice abbreviata) interstitiis planis; 

 femoribus posticis sparsim sat fortiter punctulatis; tibiis anticis 

 extus 5-dentatis. Long. 5J, lat. 3| lin. 



One of the largest species of the Third Group. Easily distin- 

 guishable from all the other species known to me of the group 

 (except B. dypeale, Blackb.) by its elongate and strongly con- 

 vergent frontal margins. From B. clypeale it is very distinct by, 

 inter alia, the entirely different sculpture of the retuse front of 

 its pronotum. It was brought by the Wells Expedition (pro- 

 bably from the Musgrave Ranges or thereabouts) and is in the 

 S.A. Museum. 



Central Australia (Mr. Basedow). 



