BY THOMAS G. SLOANE. 267 



Another reason for so placing it is that the position of the 

 posterior puncture near the extremity of the third elytral inter- 

 stice seems to me of more classificatory value in Notononius than 

 the mere number of punctures on the interstice which is a 

 variable character in some species. N. accedens, Chaud., a closely 

 allied species, has the punctures of the third interstice varying in 

 number and placed as in N. politidus. It may be noted that in 

 all these species the presence of the posterior puncture and its 

 position on the interstice are constant. 



ISToTONOMUS TUBERicAUDA, Bates. 



Cist. Ent. 1878, ii. p. 323. 



From Bates's description, the place of this species is evidently 

 near /V. politidus. I append Bates's Latin diagnosis, and would 

 quote from the note he has attached to it the following : — " The 

 third [elytral] interstice has two large punctures, the posterior of 

 which (near the apex), is the centre of a dilatation, slightly 

 elevated in the (J, but raised into a prominent tubercle in the 



9-" 



" ^y. polltulo (Chaud.), affinis, elongatus, niger politus; thorace 

 fere quadrato, angulis posticis subrectis; elytris apice distincte 

 sinuatis, humeris baud dentatis, supra fortiter, simpliciter striatis, 

 interstitiis prope apicem angustioribus, tertio excepto dilatato et 

 in ^ valde tuberoso. Long. 16 mm. South or Central Tasmania 

 (Simson)," 



NOTONOMQS KOSCIUSKIANUS, n.Sp. 



Oval. Head small, convex; prothorax rounded on sides, wider 

 at base (3 5 mm.) than apex (3 mm.); basal angles rounded; 

 posterior marginal puncture distant from base and a little distant 

 from lateral border : elytra oval, strongly striate ; interstices 

 convex, third 3- or 4-punctate. Black. 



Head 3 mm. across eyes; frontal impressions hardly marked; 

 eyes prominent, hemispherical. Prothorax broader than long 

 (4 X 4*7 mm.), lightly convex, not depressed along middle of base; 

 sides strongly and evenly rounded, a little more gently narrowed 



