176 Beetles of the Cicindela brevicollis group 
clathrata and fasciculicornis, the two forms with which it sometimes 
associates. The rami of the dorsal pattern are at their finest in this 
race and are more sharply angled; the median is given off at right 
angles to the sub-marginal band and is bisinuate below the elbow ; 
the humeral rami are produced at their termini upwards to a sharp 
point. The pattern is narrowly margined by dark lines, which give 
off shades of purple and green in strong lights. The suture is usually 
glowing metallic, but in some examples with darker ground colour the 
suture is of a dark metallic blue-green. I have a single example from 
Malvern, Natal, and another from the Victoria Falls which in the 
greater width and brighter coloration of the dorsal pattern approxt- 
mate to that of fasciculicornis and clathrata, but in shape and other 
details they are not modified from typical intermedia. These are the 
only cases of slight modification of markings I have met with in this 
race. 
The habits of intermedia are those of a moisture-loving insect, 
preferring low lands and banks of streams. In the rainy season, 
however, it may be met with in damp locations at some distance from 
water. 
C’. differens, Horn, is another distinct race of the group that has a 
very extended, but a strictly local range. The only time I have 
personally met with it, was on the sandy banks of the upper Tugela 
River, running in company with C. regalis, Dej. I have, however, 
received examples from the Umfuli River (Mashonaland), from Water- 
val (Transvaal), Beira (Mozambique) and Namaqualand. In markings 
this species approximates towards that of C. candida, Boh., inasmuch 
as the light yellow pigment of the pattern has invaded the larger half 
of the dorsal area, thus making the dark ground colour appear to be 
the pattern. This is, however, not always the case, for a female 
example from Beira has the bands and rami no wider than in clathrata. 
The Namaqua forms are the lightest, and approximate to C. candida 
both in shape and markings. The mandibles are like those of C. 
candida, Boh., being longer and straighter than in any of the preceding 
forms. The labrum is moderately produced medially, with a con- 
spicuous central tooth in the female. The antenne and tarsi are 
longer and more slender than usual, and the chief distinguishing ° 
feature is the possession of a dense fringe of white decumbent hairs on 
either cheek. 
In C. candida, Boh. the elytral pattern is formed by the black 
ground which has been largely effaced by the invasion of the yellow 
pigmented surface. In some examples from the neighbourhood of Algoa 
