202 REVISION OF THE AUSTRALIAN CURCULIONID^, 



A peculiar genus closely allied to Melanterius. The difference 

 in the lengths of the 3rd and 4th abdominal segments, though 

 but slight, is sutiiciently distinct ; in but few genera are these 

 segments unequal in size. The only known species may be easily 

 recognised on account of its shape and the large reddish tubercles 

 of the elytra. 



Hybophorus rufotuberosus, Waterh.; Mast. Cat. Sp. No. 5407. 



Piceous-black and shining with a slight satiny lustre; elytral 

 tuberosities, antennae and tarsi reddish. 



Head sparsely and finely punctate. Rostrum slightly longer 

 than prothorax, terminated beyond mesosternum; finely punctate, 

 punctures in rows before antennae. Prothorax strongl}' trans- 

 verse, sides rounded towards base, raised towards middle ; an 

 obtuse carina in middle terminating before base and apex; near 

 apex with a row of deep longitudinal punctures, small punctures 

 sparsely and irregularly distributed on disc, but becoming 

 numerous towards sides. Elytra subtriangular, almost twice the 

 width of prothorax, not much longer than wide (4^ x 5i mm.); each 

 with a number of reddish tubercular elevations of which the largest 

 is on the 3rd interstice about the middle and the next laro-est 

 on the shoulder : irregularly punctate, punctures large, each 

 encroached upon by two or four granules. Metasternuni finely 

 punctate in middle, each side with about six large i-ound punc- 

 tures; episterna impunctate. Basal segment of abdomen with 

 large round punctures, the others impunctate; apical segment 

 transversely excavated in middle. Length 7i, rostrum 2^ 



2 y 



width 4^ mm. 



Hah. — Q. : " Moreton Bay" (Waterhouse); Rockhampton (Mr. 

 Horace W. Brown) — N.S.W. : Richmond River (Lea). 



Arthriticosoma, n.g. 



Head small, not concealed by prothorax; ocular fovea feeljle. 

 Eyes ovate, convex, very prominent, not very distant, coarsely 

 faceted. Rostrum long, rather thin, curved, continued beyond 



