246 NEW SPECIES OF AUSTRALIAN COLEOPTERA, 



their apices. Length to apex of elytra 2^, of abdomen 4 J; width 

 l|^mm. 



9. Differs in having the head narrower and almost entirely- 

 black, a feeble carina separating two shallow impressions in front, 

 a shallow transversely carinate fovea behind it, antennae thinner, 

 legs with less red. 



ffab. — Queanbeyan, Sydney, Clifton, Tamworth, Forest Eeefs, 

 N.S.W. 



I have a male (from Sydney) which has the antennae piceous, 

 and with the five basal joints reddish; a female almost without 

 impressions on the head; another specimen (from Clifton) has the 

 elytra entirely black, the middle discal impression on the head 

 very feeble, and the two lateral ones larger than in the type, the 

 whole insect smaller in size (2 mm. to apex of elytra). 



Var. PALLIDIPENNIS. 



I have from Tamworth a number of specimens which agree 

 with the type except in having the elytra entirely testaceous, the 

 female with the posterior fovese scarcely traceal^le, and the male 

 with the excaA^ations slightly different. As, however, T have a 

 number of close intermediate forms I have thought it advisable 

 not to 2:ive them more than a varietal name. 



Helcogaster tuberculatus, n.sp. 



(^. Elongate, shining, depressed. Head reddish-testaceous, 

 apical two-thirds of antennae infuscate, prothorax reddish- 

 testaceous, the anterior half — except near the sides — black; elytra 

 black with — in some lights— a faint purplish reflection; abdomen 

 black; legs brownish-black, trochantins and base of femora more 

 or less reddish-testaceous; eyes dark green. A very few longish 

 hairs at the sides of prothorax and abdomen. Almost impunctate, 

 the elytra very obsoletely. 



Head transA^erse; largely, deeply and transversely excavated, 

 with four distinct sinuosities; in front with a distinctly raised 

 tubercle, flat on its anterior, feebly divided on its posterior edge, 



