406 Records of the S.A. Museum 



Hab. Northern Territory: Darwin ( G. F. Hill. No. 289). Type. I. 10860. 



A short almost globular species ; from above the head is completely hidden, 

 tile sides and apex of the prothorax appear to form one continuous outline, and 

 the hind angles to be very acute, and to strongly embrace the shoulders ; but from 

 the sides they are seen to be much less acute, although decidedly less than right 

 angles. Each of the types has a small fovea on the abdomen, but the clothing of 

 the basal segment, the depression between that segment and the apex, and the 

 long front legs are decidedly masculine features. The punctures on the prothorax 

 are so close together, and so frequently confluent, that the sides at first glance 

 seem almost strigose. The shape is much as in D. palmcrstoni, and the colour is 

 somewhat similar, but the prothoracic and elytral punctures are very different. 



DITROPIDUS GLABER sp. nov. 



d Black with a vague bluish or bronzy gloss, basal half of antennae and 

 sides of labrum reddish. Under-surface and legs very sparsely pubescent. 



Head w'ith small and fairly dense punctures at base, irregular elsewhere. 

 Eyes rather close together. Prothorax at base slightly more than twice the median 

 length, sides strongly rounded; with rather small and numerous, sharply defined 

 punctures, no larger on sides than in middle, but slightly denser. Elytra briefly 

 suboblong; with rows of rather small punctures, becoming larger on the sides, 

 and set in deep striae ; interstices with sparse and minute punctures. Front legs 

 scarcely longer than hind ones. Length ( d 9 ). 2-2 -5 mm. 



9 Differs in being more robust, prothorax slightly shorter, elytra less 

 narrowed posteriorly, legs slightly shorter and thinner, and abdomen foveate. 



Hab. New South Wales: Sydney ( W. du Boulay). Type, I. 10857. 



Structurally close to D. tibialis, but liardly metallic, legs entirely dark, pro- 

 thoracic punctures less conspicuous, and elytra almost impunctate ; from D. 

 solitus it differs in having the prothoracic punctures finer, no coarser on the sides 

 than in the middle, seriate punctures on elytra much finer, eyes (sex for sex) 

 slightly more distant, and clothing of under-surface sparser, it is ev^n very 

 sparse on the middle of the basal segment of the abdomen of the male. On the 

 male the eyes are separated about the length nf the basal joint of antennae, on the 

 female of the three basal joints ; the median line of the head is rather vague on 

 both sexes, but occupies almost the whole of the inter-ocular space. On one of 

 the females the prothorax and head have a slight coppery gloss. 



DITROPIDUS SCUTELLARIS sp. nov. 

 9 Coppery or coppery-bronze, labrum and basal half of antennae reddish 

 Under-surface and legs wMth sparse, white pubescence. 



I 



