284 



rugose. Prosternum with front edge of each episternum very 

 gently incurved, lateral extension very narrow; flanks with 

 numerous sharply-defined punctures of moderate size. Length, 

 6^-7 mm. 



Hah. — North-western Australia: Roebuck Bay (C. 

 French). Type, I. 3506. 



Closely allied to the preceding species, but colour, punc- 

 tures, and prosternal episterna different. One specimen has 

 almost the whole of the under-surface infuscated, but on 

 another the infuscation is confined to the metasternum ; one 

 has a fairly well-defined impunctate line on the head, but 

 the other is without same. 



COLASPOIDES COMPLICATA, n. Sp. 



PI. vii., fig. 95. 



(S . Dark reddish-brown, with a conspicuous brassy or 

 brassy-green gloss; under-surface blackish with a metallic 

 gloss, parts of legs and apex of antennae more or less deeply 

 infuscated. 



Head with dense and rather coarse punctures, becoming 

 smaller on clypeus and sparser towards base, with a fairly 

 distinct median line, and with a small impunctate elevated 

 space near each antenna. Antennae rather long, third joint 

 slightly shorter than the fourth. Frofhorocr about once and 

 one-half as wide as long; with dense, rather large, and deep 

 puncf-ures, becoming crowded on sides. Elytra with larger 

 punctures than on prothorax, crowded and in places trans- 

 versely confluent, with deep but irregular striae on apical 

 slope, l^rosfenmm with distinct striae close to coxae; flanks 

 with large but not very dense punctures. Ahdomen with 

 fourth segment strongly incurved to middle, and with fifth 

 overhanging same. Basal joint of four front tarsi strongly 

 inflated. Length, 7-7^ mm. 



9 . Differs in having somewhat thinner antennae, 

 abdomen simple, and basal joint of four front tarsi much 

 smaller. 



Hah. — Queensland (British Museum, from "Challenger" 

 Expedition): Brisbane (A. J. Coates) ; New South Wales: 

 Richmond and Clarence Rivers (Macleay Museum), Rich- 

 mond River (British Museum). Type, I. 3507. 



The fifth segment of the abdomen of the male is very 

 peculiar; it looks as if, when soft, the pygidium had been 

 driven inwards, forcing its middle backwards, an^ with the 

 adjacent sides elevated into keels, these being quadrilobed pos- 

 teriorlv ; the middle of the segment has two small tubercles 

 connected with the base of the keels by slight ridges. Two 

 specimens (sexes) from the Tweed River (H. H. D. Griffith) 



