COLEOPTEFA.—LEA. 233 



Hah. — Queensland (National Museum) ; Cairns (E. Allen and A. P. 

 Dodd) ; Mapleton (H. Hacker). Type, I. 11774 in South Australian Museum; 

 cotypes, C/2328 in Queensland and National Museums. 



On several of the specimens the head and shoulders have a slight mefallic- 

 green gloss ; to the naked eye the red markings of the elytra appear to be almost 

 circular, they almost completely enclose a dark space about the size of the 

 prothorax; on most of them the abdomen is paler than the rest of the under 

 surface, and on several each segment, except the basal one, is darker at its extreme 

 base and apex, so that the middle appears obscurely f aseiate ; on several the large 

 apical joint of the palpi is conspicuously reddish. The species is wider than 

 usual, and the elytral markings are very different from those of any previously 

 named Australian one. 



THALLIS PERPLEXA Blackb. 



Numerous specimens from Cairns, Cooktown, Coen River, and Darnley 

 Island, and one from Manumba in the IMadang district of New Guinea, agree 

 Avith the description of this species ; which is possibly also T. hizonata, but that 

 species was described as having the prothorax "very finely punctate" and the 

 elytra as "very faintly striate-punctate"; on the- specimens before me the 

 prothoracic punctures are of moderate size and sharply defined, and the series 

 of punctures on the elytra are larger than usual, and sharply defined even to 

 the apex. 



THALLIS MACLEAYI Blackb. 



Readily distinguished from several somewhat similarly coloured species 

 by the wide prothoracic margins, the spots close to the suture vary somewhat 

 in intensity of colour; it occurs in Queensland (Brisbane and Bowen), Northern 

 Territory (Darwin), and North-west Australia (Derby and Port George IV). 



THALLIS INSUETA Crotch. 



The four large spots, on the elytra of this species, vary somewhat in size 

 and intensity, but are always conspicuous. The species occurs in Queensland, 

 New South Wales, Victoria, Tasmania, and South Australia. 



THALLIS AUSTRALIiE sp. nov. 



Dark castanoous brown, elytra with two reddish fascia?. Densely clothed 

 with dark pubescence, becoming almost golden on the fasciae, in addition with 

 numerous sub-erect hairs; under surface and legs with almost white pubescence. 



Head sub-op'aque, and with crowded but sharply defined punctures. 

 Antenna? rather short, second to eighth joints sub-equal. Prothorax not twice as 

 wide as long, sides gently rounded and slightly uneven : punctures much as on 

 head. Elytra no wider than widest part of prothorax, parallel-sided to near 

 apex ; with regular rows of fairly large punctures, the interstices with numerous 



