340 REVISION OF THE CICINDELIDjE OF AUSTRALIA, 



elytra in the female (tig. 51). Fresh specimens show a few 

 scattered setae rising from punctures near the base of the elytra. 



Tetragramma-Group. 



Dr. Horn has informed me that, in the great genus Cicindela, 



with nearly 600 species, he knows of only one extra-Australian 



species (viz., the African G. intricata Dej.), with all the sternal 



side-pieces and the posterior coxae glabrous. In Australia, among 



the sixteen known species of the Cicindelce verce, there is the 



tetragramma-gvoup of three species with a similar want of 



pubescence. Dr. Horn also expressed in his letter the opinion 



that the tetragramma-gromp is a primitive one; and from this I 



see no reason to dissent, though I believe the tetragramma- and 



ypsilon-growps have branched from the same stem. In the 



case of the tetragramma-growp I believe the pubescence of the 



sternal side-pieces and posterior coxa? has been lost (probably 



because, for some reason, they became of no vital importance to 



the speeies). 



Table of Species. 



Elytra with dark groundcolour compact, without a longitudinal discal white 

 band extending backward from middle of base. (Prothorax with pro- 

 minent posterior angles in both sexes) , C. aurita SI. 



Elytra with dark groundcolour intricate, a longitudinal white band extending 

 backwards from middle of base. 

 Prothorax ( $ ) with posterior angles prominent, triangular. Elytra 



with sutural white vitta extending forward almost to base 



G. tetragramma Boisd. 



Prothorax ( $ ) with posterior angles subprominent, obtuse (in £ not 

 prominent). Elytra with sutural white vitta on apical half — 



extending forward hardly beyond half the length of the elytra 



C. albolineata Macl. 



Cicindela tetragramma Boisduval. 



Dr. Walther Horn has written to me that, from data I supplied 

 to him, he is of opinion that C. trivittata Macl., is a form of C. 

 tetragramma Boisd.; I believe there is but little doubt of the 

 correctness of this view, so I place C. trivittata as a variety of 

 C. tetragramma. It may be noted that Dr. Horn has drawn 



