Australian and Tasnianian MaJacodermidae. 73 



serrate only, the 11th joint almost twice the length of 10th ; the 

 prothorax also is rather less transverse. 

 Length 8 mm. 



Ifab. N.S. Wales : Richmond River (T. G. Sloane and 

 A. M. Lea). 



Readily distinguished from all the similarly coloured 

 species by the elytral punctures being in single instead of 

 in double rows. Although no species having similarly 

 punctured elytra were known to Waterhouse they appear 

 to be fairly numerous in Australia, as three {insigiiipennis, 

 paradoxa and mcyricM) were described by Blackburn, one 

 (miniatieollis) by Macleay, and several are here described.* 

 I am also acquainted with others which, for various reasons, 

 are not now described. 



In the penultimate segment entire at the apex in the 

 male, the species differs from all others before me. The 

 apical segment however is much narrower than in the 

 female. 



MeTRIORRHYNCHUS CANCELLATUS, n. sp. 



(J . Black ; suture sides and apex of elytra reddish-testaceous. 



Botitrum absent. Antennae passing hind coxae, very strongly 

 serrate (almost ramose); 2nd joint just visible from the sides, 3rd 

 considerably larger but scarcely longer than 4th, its produced 

 portion not as long as the truncated apex, 4th-9th with the pro- 

 duced portion about half the total length of each. Prothorax dis- 

 tinctly 7-areolate, rounded in front, constricted in middle, base 

 slightly produced on each side. Scutellum semicircular at apex. 

 Elytra narrow, parallel-sided ; each cjuadricostate, the interspaces 

 with single rows of large transverse or square punctures, separated 

 by strong transverse ridges. Abdomen with penultimate segment 

 feebly emarginate at apex. 



Length 8 mm. 



Hah. Queensland : Brisbane (B. Illidge) ; N.S. 

 Wales : Blue Mountains {Messrs. Taylor) ; Mount Wilson 

 {A. S. Olliff). 



The remarkable sculpture of the elytra is much as it is 

 described as being in paradoxa, but the connecting ridges, 

 though everywhere distinct, are everywhere below the 



* M. coenosus, Lea, might also be fairly regarded as having she 

 punctures in single row^i. 



