74 IDiETHINA SOBRINA. 



apical angles rounded. Pygidium finely punctured. Under 

 side coloured as above ; the sterna rather coarsely punc- 

 tured ; abdominal segments as strongly and closely punc- 

 tured as the sterna. Legs ferruginous , femora finely punc- 

 tured, the pubescence yellow. — Length S^/j — 4^/3 mm. 



Aru Islands (v. Rosenberg). 



Very nearly allied to Idwthina longipennis Motsch. and 

 I. densita Reitter^), but broader, less convex, and slightly 

 larger; from the former it may be distinguished by its 

 somewhat narrower head , more strongly punctate-striate 

 elytra ; and the female by the pygidium being rather more 

 pointed. It differs from I. densita in being less closely 

 pubescent , much more strongly punctured , and in having 

 the elytra distinctly punctate-striate. 



This insect appears to be identical with a species from 

 S. E. Australia to which Murray gave the name »/. hrun- 

 nea^\ I do not, however, propose to adopt this name, as 

 it has already been used in the very closely allied genus 

 u^thina. 



Reitter's genus Macroura^) is synonymous with Idcethina 

 Murray {in litt.), the type of which is /. longipennis 

 Motsch. , and as the name Macroura is already used for a 

 genus of Crustacea, I have retained the latter name. The 

 insect described by Reitter as Idcethina DeyroUei, cannot, 

 of course , be retained in the genus here recognised by 

 that name, as it is not permissable to apply the name of 

 a genus , the type of which has been indicated , to another 

 and quite different insect, even if such a genus be an 

 un characterised one. 



Lasiodactylus maculosus , n. sp. 



Elongate-ovate, rather convex, somewhat narrowed poste- 

 riorly , dark brown, opaque, very sparingly and finely 



1) Verb, naturf. Ver. Brünn. XIII (1874). p. 110. 



2) Verb, naturf. Ver. Brünn. XII. p. 80; id. I. c. XITI. p. 108. 



r^ï^otes from thie Leyden IMuseum, "Vol. "VI. 



