342 REVISION OF THE CICINDELIDjE OF AUSTRALIA, 



Cicindela ypsilon Dejean. 



I regard the form found about Sydney as the typical form. It 

 has the elytral pattern as in fig.84, the male being without any 

 mucro at the sutural apex. It is hard to tabulate the differences 

 between C. ypsilon and G. albicans Chaud., but, in all the speci- 

 mens of the latter which I have seen, the apex of the suture of 

 the elytra was mucronate in the male as well as in the female. 

 The albescent form shown in fig. 83 has, from a specimen in the 

 National Museum, Melbourne, the sutural apex mucronate. 

 This character and the form of the mandibles require careful 

 attention with a large series of specimens from many localities 

 before one. 



Igneicollis-Group. 



It appears to me that C. blackburni SI., which is evidently 

 closely allied to C. scetigera Horn, yet has head and basal joint of 

 antenna glabrous, is a species which helps to show that too much 

 reliance must not be placed on the pubescence of parts of the 

 body for arranging species in groups. 



Table of Species. 



Front and clypeus (also head beneath eyes) glabrous G. blackburni SI. 



Front and clypeus setose. 



Elytra with a common metallic sutural patch giving off posteriorly a 



spatulate process on each elytron G. scetigera Horn. 



Elytra with a common metallic sutural patch giving off posteriorly a 

 narrow longitudinal subsutural stripe on each elytron, also outside 

 the subsutural vitta two small metallic marks G. ig7ieicollis Bates. 



Cicindela blackburni, n.sp. 



Q. Oval; prothorax (including pronotum), base of elytra and 

 lateral parts of under surface beset with white hairs. Cupreous, 

 elytra widely margined with white; the white margin extending 

 from humeral angles to apex, indenting the cupreous discal 

 area widely and lightly at basal fourth, very deeply at half the 

 length, very lightly at apical third, and deeply and narrowly at 

 apex near suture(fig.86). 



