174 Beetles of the Cicindela brevicollis group 
spots are broader and less elongate than in neglecta. Some of the 
varieties of C. brevicollis can hardly be differentiated from those of 
vivida in pattern. 
The race as a whole appears to be more robust, and a little more 
convex than neglecta. The fringe of white hairs on the lateral 
margins of the prothorax is as thick as in neglecta and rather more 
distributed inwardly. 
There is no perceptible difference in the labrum and antennze 
between this race and neglecta. 
T am unaware on what grounds Dr. Horn has discriminated between 
neglecta as a sub-species and vivida as a variety of C. brevicollis. 
There is no greater approximation to the head of the group, in the 
one form than in the other. The slightly modified pattern of each is 
reproduced among the varietal forms of brevicollis that occur together 
in certain local areas of the Cape Peninsular, but the details that 
separate neglecta from brevicollis are identically the same as those that 
separate vivida from this species. The geographical range of each of 
these forms is fairly strictly defined in the South African sub-region, 
and the only difference in this respect is, as far as I am aware, that 
neglecta has a very extended range over the uplands of the interior, 
and that vivida is more restricted to a comparatively limited eastern, 
principally coastal, belt. They do not, I believe, occur together in 
any one locality of their respective ranges. 
The difficulty of apportioning the relative values to the affinities of 
the closely allied and sometimes intermingled forms of this group, 
leads me to prefer the use of the term race rather than that of sub- 
species and varieties, as being less committal with our present 
knowledge of their relationships. 
C. brevicollis, Wied., the oldest recorded form of the group, whose 
range is purely south-western (almost exclusively limited to the Cape 
Peninsular and adjacent districts), is characterised by its abbreviated 
form, its transverse prothorax and short elytra. In pattern it shows 
considerable variation, between examples without sub-marginal band 
as in vivida, to others in which this band is narrowly continuous from 
base to apex. The vivida-like form, however, never has the humeral 
comma-like patch and juxta sutural band widely divided up into three 
separated spots as in vivida. The indumentum of the pattern is pale 
testaceous yellow. The supra-orbital strize are absent or very faintly 
defined. The prothorax and labrum are very short and transverse. 
In shape the sexes differ more than in the corresponding sexes of 
vivida. The lateral margins of the males are straight and a little 
explanate beyond middle; the females are ampliated about middle. 
a 
