BY THOMAS G. SLOANE. 341 



attention to the deep excavation of the mesepisterna in G. tetra- 

 gramma, female, which is not found in the male.* G. tetragramma 

 is unknown to me in nature, but the allied species C. aurita SI., 

 has the mesepisterna lightly concave outward from the middle 

 coxse in the male, and far more deeply concave in the female, but 

 in C, ypsilon Dej., G. albicans Chaud., and G. rafflesia the mes- 

 episterna are somewhat similar in form, the sexual difference 

 being sufficiently marked to enable the sexes to be determined 

 by the greater (£) or less (£) concavity of the mesepisterna. 



Ypsilon-Group. 



I look upon G. rafflesia Chaud., as probably the most ancient 

 form of this group in Australia; the emargination of the apex of 

 the elytra in the female (found also in G. w^ruwi Mad, a species 

 not closely allied to C. rafflesia) seems a primitive character. 

 The small second tooth of the mandibles (counting from apex) is 

 characteristic of this group. 



Table of Species. 



Labrum (at least in J ) not unidentate. (Elytra with base of metallic 

 groundcolour compact; apex of each elytron rounded)... G. frenchi Sloane. 

 Labrum in 2 unidentate in middle. 



2 . With each elytron deeply excised at apex and armed at inner angle 

 with a very long spiniform mucro. (Apex of each elytron in $ 



rounded and with a short sutural mucro) G. rafflesia Chaudoir. 



2 . With each elytron rounded at apex and with a short sutural mucro. 

 $■ . Without mucro at sutural apex of each elytron and with apical 



curve hardly serrulate G. ypsilon Dej. 



£ . With a short mucro at sutural apex of each elytron, apical curve 

 strongly serrate G. albicans Chaud. 



ClCINDELA FRENCHI Sloane. 



The type (Q) is in the possession of Mr. French. I have not 

 had it before me when writing this Revision, but have separated 

 it from the rest of the C. ypsilon-gvoup by the form of the 

 labrum, as figured by Mr. Lea (fig. 25). 



* Deutsche Ent. Zeit. 1904, p.88. 



