123 



base). The antennae and legs are of an uniform dingy-brown, 

 somewhat paler on some specimens than on others, but of one 

 colour only. 



Three specimens from Mackay are also conspecific. Of 

 these one has the lateral punctures of prothorax more, and 

 the others have them less, conspicuously confluent. The pro- 

 thorax is of a rather dark-brown, and on two of them is 

 notably darker than the head. The elytra are uniformly 

 reddish-brown, becoming slightly paler posteriorly, but one 

 has a vaguely infuscate spot on each side. One has the under- 

 surface black, one has it somewhat paler, and the other has 

 it still paler. 



A specimen from North Queensland is sculptured as those 

 from Gladstone, but has the head of a dark-red, with an obscure 

 median blotch, the elytra with the shoulders and apex flavous 

 and the suture and base obscurely diluted with red, so that 

 an elongated black patch is obscurely isolated on each elytron. 

 The legs and antennae are more or less flavous. 



Four specimens from the Fortescue River (North-western 

 Australia) (^o* also appear to belong to the species ; but have 

 the head with denser punctures, and the median line only* 

 moderately impressed ; the prothoracic punctures are partially 

 confluent at the sides, but not oblong, and the elytra have 

 about one-third of the apex flavous, the pale portion connected 

 with the base at the sides (except on one specimen). One has 

 an elongated black patch on each elytron, as on the North 

 Queensland specimen. 



A specimen from the Behn River is of a rather dingy 

 reddish-brown throughout, except that the legs, antennae, and 

 the lateral and posterior parts of the elytra are somewhat 

 paler. It is rather narrower than the Port Denison ones, 

 and the lateral prothoracic punctures are not confluent. 



A specimen from the Fortescue River is still paler (the 

 elytra are flavous throughout, except for a slight deepening 

 of colour towards the base and on the margins). Its head 

 (except for the clypeus) is impunctate, the prothoracic punc- 

 tures are small and comparatively sparse (even on the sides), 

 and the seriate punctures on the elytra (except for the mar- 

 ginal and sutural rows) are not traceable even to the middle. 



Putting some of the extreme forms together (say the 

 last-mentioned one beside the wider, darker, and more coarsely 

 punctured ones from Gladstone), it is rather difficult to believe 

 that they belong to but one species ; but there are so many 

 intermediate ones that I am convinced all the specimens here 



(40) All the specimens from the North-west are narrower than 

 those from Queensland, but this appears to be of varietal import- 

 ance only. 



