A NEW ARO beetle. 



251 



stripes run along the upper surface of the thorax, and the spines 

 on either side are also black. Upon the elytra are three bold, 

 black marks, which are much too complicated for description, 

 Dut whicli can be understood by reference to the ilhistration. 



Some of the more remarkable insects of this genus are Trago- 

 cephalus pulchella, which is black, witli marks of vivid green and 

 golden yellow ; Tragocephalus gemmaria, fully deserving its name, 

 its velvet-black surface being studded with little azure spots, just 

 like jewels ; TragocejjhahisjJhospJiorus, which is vivid yellow, with 

 a black heart-shaped mark on the elytra; and lastly, Tragoccphah^s 

 nobilis, which is velvet-black, with a golden yellow band round 

 the thorax, and three belts of a similar colour across the elytra. 



The name Tmesisternides, by which the next group of Longi- 

 corn Beetles is distinguished, signifies " cut-thorax," and is given 

 to them because the thorax is narrow behind, broadening rapidly 

 to the front, where it is suddenly truncated, as if a portion had 

 been cut away. 



They have a large range of country, being found spread over 

 the whole of Australasia and Polynesia. The present species, 



^^ 



Fig. I'JU.- 

 (Blue or green, with white marks.) 



Ichthyosoma mirahilis, comes from the Arii Islands, and is quite 

 new to science, having only lately been discovered. It is the 

 largest of the whole genus, and is a very conspicuous insect, the 

 colours being very brilliant and boldly contrasted. The colourinc 

 of the insect is as follows : — 



