li-so.] 235 



NOTES ON OEIENTAL CARABIDAE.—l. 

 BY H. E. ANDEEWES. 



Genus Chlaenius, 



The number of species in this vast genus, described from Eastern 

 and South-Eastern Asia, grows apace, and in this paper I add a few 

 more. As four of the species described come within the cJilorodius-grou]) 

 of Chaudoir's Monograph, I have thought it as well to tabulate it, 

 after which I give descriptions of the species in question, and describe 

 one or two others from different groups at the end. 



The cJilorodius-gron\^ is characterized in Chaudou''s Monograph 

 b}' the smooth ventral surface, a little punctate at sides, metepisterna 

 without external groove, marginal border of elytra angled at shoulder, 

 elytra without coloured spots, prothorax relatively flat, impressed on 

 each side at base, but not sulcate, and labrum emarginate. This last 

 character is enough in itself to distinguish the gi'oup from all others, 

 with the exception of C. varians Chaud., and the little group of which 

 C. tristis Schall. is typical. It should be mentioned that the ventral 

 surface is often more punctate than Chaudoir's table would imply, espe- 

 cially^ so in C. clilorodius itself, but in this group at least it is always 

 shining and never at all densely pubescent. I may add that the sides of 

 the prothorax have always a green margin of varying width. 



Table of chlorodius-yroe<^. 



1 (2) Elytra without a row of punctures along each side of striae, shiuy, 



uniform violet-blue ; legs black. Length 14 mna. .pretiosus Chaud. 



2 (1) Elytra with a row of punctures along each side of striae, dull (or if 



shiny, with green margin) ; legs testaceous. 



3 (8) Elytra more or less shiny, blue-black to blue with green margin, 



intervals more or less convex. Length 12-14 mm. 



4 (5) Elytra with interval 8 more closely punctate than the others ; prothorax 



brilliant coppery, coarsely and sparsely punctate, without any small 

 yiunctures between the larger ones ; ventral surface fairly closely 

 punctate. Length l4 mm chlorodius Dej. 



5 (4) Elvtra with interval 8 like the otliers ; prothorax dark purplish on 



disc, with small punctures between the larger ones ; ventral surface 

 sparpely punctate. 



6 (7) Elytra with coarse punctures along each side of striae; prothorax 



rather flat, with sharp and slightly projecting hind angles. Length 

 1.3 mm liiculentus, n. sp. 



7 (0) Elytra with fine punctures along each side of striae ; prothorax convex, 



with obtuse hind angles. Length 12 mm viddus Chaud. 



8 (3) Elytra dull, with or without green margin, intervals mure or less 



flat. Length 15-18 mm. 



