56S STUDIES IX AUSTRALIAN ENTOMOLOGY, NO. XII.. 



Prothorax with posterior lateral sinuosity obsolete, or almost so, 



„ E. rockhamptonensis, Casteln. 



Prothorax with sides strongly sinuate posteriorly. E. comptus, Laf. 

 Elytra with third, fifth and seventh interstices much more raised than 



fourth and sixth. 

 Form short, oval, convex. 



Two inner interstices of each elytron not placed in a wide deep 



sutural channel E. froggatti, SI. 



Third interstice of elytra very strongly raised so that the sutural space 

 between them forms a wide channel ...E. aiistralasice, Chaud. 

 Form oblong. 

 Prothorax decidedly broader than long. 



Elytra convex, oval, with sides rounded; elytral spots orange, round, 



anterior distant from base E. alternam, Casteln. 



Elytra depressed, oval, with sides parallel; elytral spots red, anterior 



large and near base E. mastersi, SI. 



Prothorax hardly broader than long; elytral i E. elongatus, Casteln. 



spots red ( E. australis, Dej. 



Elytral interstices roundly convex, equal and punctulate. (Length 

 9-5 mm.)... E. par villus, 'Ma.cl. 



EpICOSMUS MACLEAYI, n.Sp. 



Eudema nohile, Mac!., Proc. Linn. Soc. N.S.W. 1888 (2), iii.j 

 p. 462. 



Chaudoir, in his Monograph, refers Panageu.s nohilis, Dej., to 

 Epicosmus; Macleay's name E. nohilis, therefore, requires chang- 

 ing. It is closely allied to E. insignis, Schaum, but diHering by 

 prothorax proportionately longer (4-2 x 5 — insiynis -^-'l x 5-8 mm.), 

 much narrower at apex (2-4: — insignis 3-1 mm.), of same width at 

 base (3-4 mm.); sides less ampliate; widest part placed further 

 back; margins less explanate and not the least sinuate towards 

 base, kc. Length 16-5, breadth 7 "7 mm. {E. insignis 18 x 8 5 mm.). 



Hab.—^.^.X. : Behn River (Helms). 



Epicosmus obesulus, n.sp. 



Robust, oval, convex. Black; elytra with four orange-coloured 

 spots; anterior spot small, transverse, distant from base; inflexed 

 margins black (not marked with a red spot near base). Allied 



