Australian Longicorn Beetles. 83 



tubercle, and gibbous above. Elytra broader than thorax, about 

 the length of the abdomen, gradually tapering to a point, and 

 gaping at the suture. Legs robust, moderate in length. 



AMptera semiflava. (Plate IV. fig. 6.) 



Head black, hairy, with a yellow patch. Antennae black. 

 Thorax hairy, dull orange, with the disk black. Elytra hairy, 

 dull yellow, with the apical half black, marked with two elevated 

 longitudinal ridges. Legs hairy ; the anterior dull yellow, with 

 the tips of the femora and tibiae and tarsi black, middle and pos- 

 terior black, the former having the tibiae dull yellow, with the 

 tips black. 



From Australia. 

 Length T 7 ^ inch. 



In the collection of A. Melley, Esq. 



Somewhat allied to Mr. Newman's genus Brachytria, but dif- 

 fering in the length and structure of the antennae, and in other 

 important characters. 



Brachytria, Newman. (Annals, Nat. Hist. vol. v. p. 16.) 

 Brachytria gulosa, Newman, loc. cit. (Plate IV. fig. 3.) 



Hairy, black, with the head and forepart of the thorax bright 

 orange, and three large yellow spots forming a triangle on the 

 elytra, pale yellow. 



Hab. New Holland. 



Length T 6 5 <y inch. 



In the British Museum collection, and in my own cabinet. 



This species varies much in its markings. The dorsal spot 

 is sometimes wanting, and occasionally the three spots are united 

 into one angular band of pale yellow. 



a 2 



