326 Mr. G. C. Champion on the 
on the front feet is also present in the corresponding sex of 
the Dasytid-genus Lobonyx, Jacq. Duval, in which, however, 
it is restricted to joints 2 and 3, the basal joint being 
relatively shorter than in the genera here studied; this 
structure, clearly visible in males of Lobonyx captured by 
myself in Spain and Algeria, has been figured and described 
by Duval (Gen, Coleopt. Europ. iii. p. 183, pl. 46. fig. 225 ¢). 
Other ¢-characters, apart from the usually larger eyes, 
the stronger serration of the antenne in J. riridipennis and 
ar 
wr 
ee age 
Idgia plectrophora, sp. n., anterior leg, g (ef. p. 380). 
belli, and the emargination of the fifth ventral segment, 
have been detected in certain cases, such as the thickening 
of the posterior femora, the curvature or sinuation of the 
posterior tibize, the acutely produced posterior trochanters, 
the form of the basal joint of the anterior and intermediate 
tarsi, &e. 
In one species, J. plectrophora, all the tibial spurs are 
longer than usual in both ¢ and 2; and in another the 
