NOTES ON THE LEPIDOPTERA OF LA SAINTE BAUME. 61 
Opinion, but it appears to be very local even where it exists.* 
We found it restricted to quite a small space on the edge of the 
wood which borders the north-east corner of the plateau before 
beginning the descent to Nans. But its allies, A. macilentaria 
and A. litigiosaria, are fairly commonly distributed over all the 
neighbourhood, more particularly the former. From neither of 
these could I pretend to distinguish it in flight; but A. macilen- 
taria, which is most like it on the upper side, is readily distin- 
guished when caught by its dark strongly-marked under side. 
A. determinata is not an active insect and is easily overlooked, 
as it seems rarely to fly unless disturbed; but like other 
** waves,” it is fond of lying spread out on a leaf—not, I think, 
in the full sun, but rather close to the ground, and where longer 
branches above afford a slight shade. In our experience, it was 
always driven out of little stunted oak bushes; whether it had 
any closer connection with these than the fact they provided a 
pleasant resting-place I cannot venture to suggest. From the 
list of captures appended it will be seen that the Acidalids 
proved a strong and interesting family in this region, while the 
Larentids were remarkably few and ordinary. The Zygenids 
provided variety, but with the exception of Z. angelice and 
Z. lonicere coud hardly be considered numerous. That almost 
most beautiful ‘‘burnet” of all, 7. lavandule, appeared only 
separately on the road to Nans; but on crossing the Col de 
Bretagne, I found a large colony feasting on the flowers of 
“hemp agrimony,” or a plant like it, growing in a hollow by 
the side of the Gémenos road. This, I think, is an unusual 
occurrence, for at Bondol, where Z. lavandule was more com- 
mon, I always took it singly and generally on the wing. 
Z. erythus, on the contrary, has the burnet-habit of congregating, 
and was seldom seen alone, but had a restricted headquarters 
of its own; and gave its attentions to a tall wiry scabious with 
little wizened flowers, which would have been justly despised in 
any better watered land. Probably the more active habits of 
lavandule accounted for a difficulty in getting good specimens. 
It seems also to be a slightly earlier species. The most remark- 
able feature in ‘“‘ moth-land,” perhaps, was the extraordinary 
quantity of three small species in the herbage of the plain of 
Plan d’Aup. I have already remarked in a former paper on the 
abundance of Rusticus egon. But even more wonderful—espe- 
cially in 1912—was the enormous number of Acidalia sericeata 
‘and A. decorata, disturbed in walking over the plateau; and 
with them almost as many Crambus craterellus —the only 
Crambus observed, with the exception of two or three C. cwmellus. 
Among the “ pugs,’ Mr. Prout has praise for T’ephroclystia 
* An indirect but suggestive token of the rarity of A. determinata, in 
collections may be gathered from the fact that it is not offered for sale in 
either the Staudinger, Bang-Haas, or Bartel price-lists. 
