206 CORYNODES BASALTS. 



of the antennae are however black , not blue, in the allied 

 insect, the antennae in C. hasalis are not two thirds the 

 length of the body but much shorter and the elytral punc- 

 tuation is very regular ; in the female insect the elytral 

 costa begins below the middle and is abbreviated before 

 the apex; in C. approximans it is described as extending 

 to the sutural margin. 



The types of Mr. Baly's numerous species of Corynodes 

 are contained in the collection of the British Museum, with 

 all of which I have compared the species described here. 



Chrysochus Hageni^ n. sp. 



Oblong-ovate , convex ; entirely dark metallic blue ; an- 

 tennae black , first joint metallic green ; thorax closely and 

 finely punctured ; elytra closely punctate-striate. — Length 

 3—4^/3 lines. 



Head closely punctured , with a central deep longitudi- 

 nal groove ; inner margin of the eyes surrounded by a 

 metallic green narrow space; antennae half the length of 

 the body, the first joint metallic green, the two following 

 ones fulvous , the rest black ; thorax nearly twice as broad 

 as long, the sides straight, slightly rounded in front, sur- 

 face distinctly and closely punctured ; elytra transversely 

 impressed before the middle , very closely punctate-striate , 

 the punctures more strongly at the sides than at the disk, 

 the interstices slightly wrinkled anteriorly. 



This species is closely allied to C. pulcher Baly, but dif- 

 fers in its entirely metallic blue colour and in the much 

 less coarsely and more closely punctured thorax ; the latter, 

 in the female, is of rather more transverse shape than in 

 the other sex. 



JtalticintB. 



Aphthona sumatrana, n. sp. 

 Black ; legs , basal joints of the antennae and the tho- 



Notes from tlae Leyden IMuseum , "Vol. "VI. 



