Aiistralian and Tasmanian Malacodermidac. 81 



touches the outer of the four discal costae. In both the 

 specimens before me the scuteHum has the appearance 

 of being feebly longitudinally ribbed, but this may be 

 accidental. In the male the abdomen is missing, 



Metriorrhynchus ordinarius, n. sp. 



(J. Black; sides of prothorax, sides and apical fifth of elytra 

 reddish-testaceous. 



Head moderately shining. Rostrum long, thin, and shining. 

 Antennae long (extending to about one-fourth from apex of elytra), 

 strongly serrate ; 2nd joint indistinct, 3rd about twice as long as 

 wide and distinctly longer than 4th, 6th-10th subtriangular. 

 Prothorax feebly transverse, base rnuch wider than apex, posterior 

 angles produced but rounded, sides constricted in middle ; 7-areolate, 

 but the ridges bounding the areolets not very distinct. Scutellum 

 diminishing in width to apex, which is semicircularly emarginate. 

 Elytra narrow, parallel-sided ; quadricostate, tlie interstices with 

 somewhat irregular double rows of punctures, the ridges separating 

 the punctures rather feeble' except towards base, where the longi- 

 tudinal ones are almost as stout as the costae. Abdomen with the 

 penultimate segment deeply excised. 



Length 10| mm. 



9 . Differs in being slightly wider, the antennae shorter and 

 wider and the abdomen simple. 



Hab. Victoria : Monbulk, Studley Park, Qippsland. 



The pale margins of the elytra are very narrow at the 

 basal two-thirds, but then dilate so as to cover the whole 

 of the apical fifth, the black portion consequently is some- 

 what triangularly advanced along the suture. In colour 

 it appears to resemble monticola, but its rostrum is fully 

 thrice the length of the basal joint of the antennae. It 

 would be a Porrostoma according to Waterhouse. 



Metriorrhynchus batesi, n. sp. 



p. Black ; basal three-fifths of elytra of a dark brownish-red. 



Rostrum absent. Antennae stout, strongly serrate, extending to 

 about middle of elytra ; 2nd joint unusually distinct, 3rd distinctly 

 longer than 4th. Prothorax transverse ; distinctly 7-areolate, apex 

 produced and slightly notched in middle, sides not constricted in 

 middle, base deeply bisinuate and with a distinct median notch, basal 

 angles rounded off but rectangular. Scutellum rather narrow and 

 notched at apex. Elytra long, parallel-sided ; each quadricostate, the 



TRANS. ENT. SOC. LOND. 1909. — PART I. (MAY) G 



