574: STUDIES IN AUSTRALIAN ENTOMOLOGY, NO. XII., 



with rounded summit posteriorly. Black; elytral spots red, large; 

 inflexed margin of elytra with a red mark below anterior spot. 



(J. Head stout, convex; frontal impressions punctate; lateral 

 ridges almost parallel; antenna? elongate. Prothorax broader 

 than long (3-1 x 3-9 mm.), widest just behind middle, notconvexly 

 raised in middle of disc, but lightly declivous to sides anteriorly; 

 margins a little flattened at widest part, narrowly so anteriorl}^, 

 widely upturned posteriori}^; anterior angles wide, rounded; sides 

 widely but strongly rounded at widest part, strongly subobliquely 

 narrowed to apex (2-15 mm.), posterior part appearing widely 

 sinuate when viewed from side; base truncate ('J'Smm.); basal 

 angles shortly dentate; median line strongly impressed; a wide 

 shallow concavity on each side of base. El^^traoval (8 x 5*3 mm.), 

 subparallel on sides, sinuate on each side of apex, depressed on 

 disc; interstices 2-7 strongl}'' raised with summits nitid (only 1st, 

 8th and 9th noticeably punctate). Length 13-3 mm. {Hah. — 

 Sydney). 



9. More convex (both prothorax and elytra); prothorax wider, 

 sides less strongly curved at widest part, base wider. Length 

 14-3, prothorax 3'3 x 4*2, apex 2*25, base 3, elytra 8*5 x 5-7 mm. 



Length 12'5-14-3, breadth 5-5-8 mm. 



Hah. — N.S.W. : Neighbourhood of Sydney (Auburn and Home- 

 biish), Narrara (Sloane). 



This seems to be the species Chaudoir regarded as E. altervcuis, 

 Casteln. ; but, if so, his identification was erroneous. It is 

 allied to £. alttrnans, but differs by size smaller; form more 

 depressed; spots of elytra of a darker colour, anterior spot larger; 

 head with lateral ridges less divergent anteriorly; (prothorax very 

 similar); elytra more depressed; interstices less unequal, 4th and 

 6th more carinate. From the species which I regard as E. 

 elorigatus, Casteln., it differs by form less elongate; prothorax 

 shorter and broader, less strongly sinuate posteriorly; and by the 

 features mentioned above as distinguishing it from E. cdternans. 

 The elytra are coloured like those of E. australasice, Chaud., but 

 the anterior spot does not approach so nearl}^ to the base. E. 

 master si is larger, more depressed; prothorax less convex, less 



