526 NEW SPECIES OF AUSTRALIAN COLEOPTERA, 



S. CLAVATUS, Sharp. Hah. — Sydney, N.S.W. 



S. Meadfooti, Clark, //a,'.. —Forest Reefs, N.S.W. 



Chostonectes gigas, Bohem. llab. — Sydney, Forest Eeefs, 

 KS W. 



C. nebulosus, Macl. Huh. — Sydney, IST.S.W. 



Antiporus femoralis, Bohem. /yai. — N.S.W. ; W.A. 



A..G1LBERTI, Clark. Hah — Forest Reefs, Bathurst, N.S.W. 



Necterosoma costipenne, n.sp. 



ij. Opaque, depressed, with ver}^ fine pubescence. Piceous; 

 head, antennio and legs obscure testaceous-red. 



Upper surface (except of head, which is finely) rather densely 

 and strongly punctate. Prothorax with a strong curved basal 

 impression bounded at the sides behind by a number of rather 

 strong rugae. Elyti-a almost concave along the middle, each 

 about its middle acutely ridged, the ridges continued towards but 

 almost obsolete at base, and entirely disappearing before apex. 

 Tibite stout, the anterior moderately strongly notched in the 

 middle. Length 4| mm. 



9. Differs in being slightly narrower, the prothorax diluted 

 with red, simple tibiie, thinner tarsi, itc. 



^a6.— Tasmania (Mr. A. Simson, No. 2921; Mr. J. J. Towers). 



The acute elytral costte render this species the most distinct 

 one in the genus. 



Necterosoma vittipenne, Macl. — I have two co-types of this 

 species which agi'ee with the description of penicillahtm. It 

 occurs in all the Australian colonies, with the possible excejDtion 

 of Tasmania. 



Necterosoma Schmeltzi, Sharp. — A moderately common and 

 variable Ijut very distinct species. I liave specimens from Sydney 

 and Galston. 



N. FLAVicoLLE, Macl. Hah. — Gayndah (co-types), Q.; Forest 

 Reefs, N.S.W. 



N. Darwini, Bab. Hah. — W.A. (widely distributed). 



