BY ARTHUR M. LEA. 633 



what similar to those of the prothorax, but the disc on each side 

 is marked by a large subtriangular patch of velvety scales; each 

 patch is bounded posteriorly by white scales, and there are a few 

 whitish ones before it. The under surface and legs are clothed 

 with ochreous, intermingled with snowy, scales. 



Genus Odosyllis, Pasc, Journ. Linn. Soc. Zool. xii., p.40. 



This genus appears to be numerously represented in the Malay 

 Archipelago, but hitherto one species only has been recorded 

 from Australia. In his original description of the genus, Pascoe 

 compares it with Nedymora, not even mentioning Euthyrrhinus, 

 to which (at any rate 0. crucigera) it is remarkably close,* 

 differing chiefly by the mesosternal receptacle being slightly 

 cavernous instead of open. As I am acquainted with only one 

 speciesf of the genus, I have not ventured to give its generic 

 characters. I have described the species at length, however, as 

 the original description is somewhat faulty. 



Odosyllis crucigera Pasc; Mast. Cat,, 8p.No.5503. 



^. Black, antennai and claws of a very dingy red. Densely 

 <;lothed with soft pale brown scales, in some places varying almost 

 to white, and in others almost to black. 



Head with fairly dense but more or less concealed punctures. 

 Rostrum apparently slightly longer than prothorax, curved, and 

 rather thin; base considerably wider than apex, sides incurved to 

 middle; with coarse and irregular punctures on basal third, very 

 fine elsewhere. Antennae rather thin, inserted about two-fifths 

 from apex of rostrum; two basal joints of funicle elongate, the 

 second distinctly longer than the first. Prothorax transverse, 

 base strongly bisinuate, sides strongly rounded, apex subtubular; 

 middle of base distinctly impressed; punctures entirely concealed; 

 with rather large shining unisetose granules. Scutelhwi trans- 



t For three cotypes of 0. crucigera, I am indebted to Dr. R. Gestro. 

 * The figure of the typical species, 0. congesta (Plate i., fig.5) is also 

 much like that of a Euthyrrhinus. 



