CICINDELA. 



327 



Group 2. 



The members of this group are small but conspicuous insects, 

 the elytra having broad and shining metallic margins ; the under- 

 side is very slightly pubescent, the episterna of the metasternum 

 being bare on the disc ; length 8-12 mm. 



Key to the Species. 



I. Elytra with the metallic side margins 



neither dentate nor interrupted : 

 length 10J-12 mm. 



1. Elytra with two conspicuous round 



whitish spots on each on the 



posterior half , chloroplewa, Chaud., p. 327. 



2. Elytra without spots viridicincta, W. Horn, p. 328. 



II. Elytra elongate and parallel-sided, 



with the metallic side margins 

 interrupted in the middle, and with 

 a transverse yellow marking at the 

 centre, followed by a spot at some 

 distance before apex ; length 



12 mm , vemts, W. Horn, p. 328. 



III. Elytra short with the metallic side 



margins irregular and dentately 

 produced before and about middle, 

 with two small whitish spots on 

 each on the posterior half j length 



8-9 mm azureocincta, Bates, p. 330. 



102. Cicindela chloropleura, Chaud. 



Cicindela chloropleura, Chaudoir, Cat. Coll. 1865, p. 59. 



This species and its allies may be known by the broad and 

 brilliant metallic colouring of the side margins of the head, 

 pronotum and elytra, and of the suture of the latter ; in C. chloro- 

 pleura the labrum is long, rounded and raised in the middle, more 

 or less metallic ; head rather loug, somewhat excavate and strongly 

 striate between the eyes, which are moderately prominent ; 

 pronotum slightly transverse, with the sides rounded, subglobose, 

 narrowed in front and behind, rather strongly rugose ; head and 

 pronotum coppery, shining, with the sides, two longitudinal 

 markings (somewhat variable) on the former, and the depressions 

 on the latter brilliant blue or green ; elytra dull coppery red or 

 olivaceous, dull, finely punctured, but distinctly at base, with 

 brilliant blue or green margins and suture, and with two white 

 spots on each, just touching the marginal colour, one at middle 

 and one before apex ; antennae with the first four joints metallic ; 

 legs more or less metallic, trochanters red ; underside brilliant 



