BY THOMAS G. SLOANE. 305 



This species has a superficial resemblance to iV. subopacus, 

 Chaud., but differs conspicuously, inter alia, hy the prothorax 

 rugulose-striolate and sinuate on the sides near the base. Its 

 position is intermediate between N. opacicoUis, Chaud., and iV^. 

 disco riniosus, SI. ; from JV. opacicoUis it differs greatly by its 

 smaller size, narrower form, less transverse prothorax, non-foveolate 

 elytral interstices, &c.; from iV^. discorimosus it differs by its 

 prothorax more elongate, with sides sinuate before the base, 

 posterior angles strongly marked; elytra with the eighth interstice 

 wide as in N. opacicoUis. From N. striaticoUis, Casteln., a species 

 not known to me in nature, I think it distinct, because the pro- 

 thorax has the sides sinuate before the base, and the basal angles 

 rectangular. It evidently cannot be iT. depressij^^mis, Chaud., 

 from the description of which it offers conspicuous differences as 

 under : — (a) lateral basal impressions of prothorax longer and 

 quite as deep as in iV. opacicoUis; (b) elytra not flatter; (c) six 

 inner interstices not the least depressed (in (J); (d) eighth inter- 

 stice wide on basal half (not very narrow and convex). 



NOTONOMUS DISCORIMOSUS, n.sp. 



(J. Oval. Prothorax transverse, with sides strongly and evenly 

 rounded : elytra truncate-oval, deeply striate; interstices convex, 

 third 2-punctate, eighth narrow; humeral angles dentate. Head 

 black; prothorax opaque, black with a faint viridescent tinge on 

 disc, becoming metallic near sides; elytra subnitid, dark purple, 

 becoming aeneous near base and on lateral declivities, ninth inter- 

 stice and lateral margin of a bright brassy colour. (9 with elytra 

 not opaque, of a uniform bronzed purple with lateral channel 

 green. ) # 



Head not large; eyes convex, prominent. Prothorax depressed, 

 transverse (3-3 x 4 mm.); wider across base (2*7 mm.) than apex 

 (2-5 mm.); upper surface transversely striolate and longitudinally 

 shagreened ; sides evenly rounded, narrowed posteriorly in an 

 even curve without any antebasal sinuosity; apex emarginate; 

 base lightly and widely emarginate in middle; basal angles obtuse; 

 20 



