BY ARTHUR M. LEA. 67 



Leptacinus Nov.e-Hollandle, Fvl. 



This appears to be a synonym of L. luridipennis, Macl. 



L. LURIDIPENNIS, Macl. Hccb. — New South Wales (common 

 and widely distributed). 



L. socius, Fvi. JIab. — Tasmania; West Australia; New South 

 Wales. 



L. FiLUM, Blackb. Hab. — New South Wales; West Australia. 



SuNiopsis POLiTus, n.sp. 

 (Plate iv., fig. 2.) 



9. Highly polished and somewhat depressed. Clear 3^ellow, 

 elytra and antennae slightly jjaler than head and prothorax, palpi 

 and legs still paler, mandibles reddish. Head with a few long 

 hairs at base and sides, and two on each side in front and imme- 

 diately in a line with antennae; two long hairs and a few short 

 indistinct ones on each side of prothorax; base of elytra with a 

 long hair on each side. Abdomen with moderately short yellowish 

 pubescence, becoming longer on sides and moderately dense at 

 apex. 



Head subquadrate; with a few small scattered punctures, but 

 with much smaller and denser punctures invisible from most 

 directions. Antennae slender, slightly passing base of prothorax, 

 3rd joint longer than 2nd but shorter than 1st, the others slightly 

 decreasing in length, 11th slightly longer than 10th. Prothorax 

 oblong, angles rounded, apex very slightly wider than base, 

 slightly longer and slightly narrower than head; with scattered 

 a-nd very minute punctures and with a series of small punctures 

 on each side of middle and a few small ones (almost seriate in 

 arrangement) on the sides. Scutellum small, semicircular; im- 

 punctate. Elytra little more than one-half the length of prothorax 

 but at widest quite as wide, shoulders strongly rounded; each 

 separately rounded at apex; the surface rendered slightly irregular 

 by punctures, but these shallow and indistinct. Abdomen slightly 

 increasing in width from base to beyond middle, 7th segment 



