312 REVISION OF THE GENUS yOTOSOMUS, 



Note. — One specimen ((J) is less elongate; prothorax a little 

 shorter; elytra more metallic in colour (bronzy or brassy purple), 

 with more convex interstices, puncture of third interstice near 

 apex, eighth not reaching the base. Length 13, breadth 4-7 mm. 

 I should expect N. simulans, Chaud., to resemble this form in 

 colour, but to be a different species intermediate between N. 

 victoriensis and N. dyscoloides. 



NoTONOMUS OPULENTUS, Castehi.; Chaudoir. 



Feronia (Fterostichus) opulenta, Casteln., Trans. Roy. Soc. 

 Vict. 1868, viii. p. 210; N. opulentus, Chaud., Ann. Mus. Genova, 

 1874, vi. p. 580; Feronia (Pterostichus) auricollis, Casteln., /.c, 

 p. 211; C?) N. parallelomorpha, Chaud., Bull. Mosc. 1878, liii. 

 p. 73. 



Elongate. Prothorax and posterior part of head aeneous (pro- 

 thorax sometimes of a purplish brassy colour); elytra dark violet; 

 under surface black, nitid; episterna of prosternum iridescent; 

 legs black. Head small (2-6 mm. across eyes), oval, convex ; 

 frontal impressions distinct, sharpl}^ defined, short, diverging 

 backwards; eyes convex, not protuberant. Prothorax of equal 

 length and breadth (3-8 x 3*8 mm.), widest before middle, not the 

 least ampliate at widest part, wider across base (3 mm.) than 

 apex (2*7 mm.), depressed across basal third; sides lightly and 

 obliquely narrowed to base, shortly subsinuate before base (the 

 posterior sinuosity sometimes obsolete); anterior angles obtuse, 

 not marked; base emarginate in middle, truncate on each side; 

 basal angles rectangular (sharply marked); border narrow, a little 

 more widely reflexed posteriorly than anteriorly, dilated at basal 

 angles to receive posterior marginal puncture, extending on each 

 side of base to lateral basal impressions — these deep, elongate, 

 narrow, sulciform at bottom ; lateral basal spaces depressed. 

 Elytra long (8x4*8 mm.), subdepressed, strongly declivous to 

 apex, truncate at base; sides lightly rounded, gently narrowed to 

 base; apical sinuosities well developed; basal border raised into 

 a short, strong subdentiform prominence at each humeral angle; 



