282 EEVISION OF THE GENUS XOTONOMUS, 



^. Elongate-oval. Green, nitid ; border of prothorax and 

 elytra black, suture and base of elytra blackish; under surface 

 and legs black, tibiae piceous. 



Head small (3 mm. across eyes), vertex transversely impressed; 

 eyes prominent. Prothorax about as long as wide (4-2 x 4*2 mm.), 

 lightly narrowed to base; apex truncate, hardly as wide (2'7 mm.) 

 as base (2-8 mm.) ; sides lightly rounded, obliquely narrowed 

 without sinuosity to base; basal angles well marked, obtuse at 

 summit; posterior marginal puncture in lateral channel at basal 

 angle ; border narrow; median line lightly impressed ; lateral 

 basal impressions elongate, deep. Elytra oval (9-2 x 5-5 mm.), 

 lightly convex; sides lightly rounded; lateral sinuosities of apex 

 strongly developed ; shoulders rounded ; basal border a little 

 raised above lateral border at humeral angles (these not the least 

 dentiform) ; striae deep ; ninth distinct near apex ; interstices 

 lightly convex, third 3- or 4-punctate, tenth interstice only 

 shortly developed near apex. Intercoxal declivity of prosternum 

 rounded; of mesosternum concave. Length 16, breadth 5-5 mm» 



Hab. — Vic. : Fernshaw (Sloane), Lillydale (W. Kershaw). 



I ascribe the name N. gippslaiidicus, Casteln., to this species 

 from the applicability of the original description to it. Chaudoir 

 thought it only a local variety of N. opulentus, Casteln., but if I 

 am right in my identification of N. opulentus the species are 

 quite distinct. 



]}^ote. — A specimen (9) from the mountains at the source of 

 the Ovens River, Victoria, has been sent to me by the Rev. Thos. 

 Blackburn. Compared with the species I take to be A^. gipps- 

 landicus, Casteln., it is duller coloured; prothorax smaller and 

 narrower (3-6 x 3*6 mm,); elytra more oval (8*5 x 5-3 mm.), and, 

 proportionately to the prothorax, wider ; humeral angles still 

 more obsolete. Length 15, breadth 5*3 mm. An examination of 

 a number of specimens of these two forms would be required to 

 determine if each is entitled to rank as a species. 



