138 Arthur M. Lea : 



a hair or seta at its tip. Front coxae almost touching; front 

 tibiae scarcely, the hind pair distinctly, but irregularly, serrated. 

 Length 7| mm. 



Hab. — Queensland : Cairns. 



The only specimen now before me was obtained from Mr. E. 

 Allen or Mr. H. Elgner, and its middle tibiae are missing. 

 There is, however, a specimen from Cape York in Mr. J. A. 

 Anderson's collection. The elevations of the prothorax are, 

 perhaps, not properly called granules, each appears as a small 

 acute ridge, distinctly separated from its fellows, but so placed 

 as to appear a remnant of a transverse blade-like ridge ; in the 

 middle of the extreme apex they are more distinct and closer 

 together, giving it a serrated appearance. 



Among the Australian Scolytidae readily distinguished by its 

 large size, robust form, and conical tubercles margining the 

 posterior declivity. The only species previously referred to 

 Tomicus from Australia is truncatus (Amasa thoracica), which 

 is a much smaller species, with the posterior declivity abrupt 

 and not margined with tubercles. 



Xykborus compressiis^ Lea. 

 Tlie elytra of this species are usually very little darker than 

 the prothorax. On their posterior declivity there are two small 

 subconical tubercles on the third interstice on each side. The 

 species occurs in Queensland, Victoria and Tasmania, as well 

 as in New South Wales. 



Xykborus parvus. Lea. 

 There are a few small granules on each side near the apex of 

 the elytra of this species. 



Xykborus hirsutus, Lea. 



There are numerous small acute granules on the posterior 

 declivity of this species ; and the elytra, instead of being once 

 and one-fourth the length of the prothorax, as in the original 

 description, are fully once and one-half its length. 



The species occurs in Queensland, as well as in N.S. Wales; 

 and Mr. C. French, junr., has obtained numerous living speci- 

 mens at Melbourne, in logs from the Malay Peninsula. 



