126 



comb from base to apex on inner side. Length ( <$ , 9)r 

 2*5-3 mm. 



9 . Differs in having the head smaller, antennae shorter 

 and thinner, joints less strongly transverse, apical one smaller 

 and with its tip pointed, middle legs and front tarsi simple. 



Hab. — South Australia: Adelaide (Blackburn's col- 

 lection and A. M. Lea), Mount Lofty (R. J. Burton, A. H. 

 Elston, J. G. O. Tepper, and Lea), Lucindale (B. A. Feuer- 

 heerdt, F. Seeker, and Lea), Myponga (Elston). Type r 

 I. 11909. 



Readily distinguished from all previously described 

 species by the apical joint of the male antennae ; its most 

 distinctive shape is that viewed at right angles to its greatest 

 width, when it appears rather wide and parallel-sided, with 

 its tip slightly notched, from other directions it appears rather 

 narrow and somewhat lopsided; the middle legs are also dis- 

 tinctive, the head is slightly smaller in the female than in 

 the male, but the frontal foveae are much the same. In my 

 table it would be placed with H. pulchripes. On the male 

 the tarsi and the base of the middle femora are infuscated, 

 the antennae after the third or fourth joint gradually become 

 darker, but even the terminal joint never appears to be black; 

 on the female a greater portion of the front and middle legs 

 is dark. On fresh specimens the prothorax has a decided 

 reddish tinge. 



Helcogaster centralis, n. sp. 



d" . Black; head (except at base), prothorax, base of 

 antennae, and most of legs flavous. 



Head rather wide, with a rounded fovea occupying one- 

 third of^ the interocular space ; between it and eyes flat, and 

 with crowded punctures; an obtuse elevation in front. 

 Antennae moderately long. Prothorax near apex wider 

 than long, but rather strongly narrowed to base, near base 

 with a wide and deep closed depression. Elytra rather short, 

 dilated and rounded posteriorly ; with very minute, rugulose 

 punctures. Basal joint of front tarsi lopsided, with a small- 

 black comb. Length, 2 mm. 



Hab. — New South Wales (Dr. E. W. Ferguson). Type 

 (unique), I. 11923. 



At first glance apparently belonging to H. foveiceps, 

 but head with a large central impression, instead of one on 

 each side, the antennae- pale only at base, and prothorax of 

 different shape; from H. hackeri it is still more distinct. In 

 front of the central fovea there is an elevation which might 

 be regarded as a large tubercle, and hence in my table the 

 species might be placed in i, ' and of those there noted it 

 differs from H. helmd, in being much smaller, head of 



