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NEW SPECIES OF AUSTRALIAN COLEOPTERA, 
their apices. Length to apex of elytra 2^, of abdomen 4 J; width 
1^ 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. 
Hab. — Queanbeyan, Sydney, Clifton, Tamworth, Forest Reefs, 
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 traceable, and the male 
with the excavations slightly different. As, however, I have a 
number of close intermediate forms I have thought it advisable 
not to give 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 transverse; 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, 
