176 THE ENTOMOLOGIST. 
and one small crescent-shaped mark next the costal margin ; 
the central and hind marginal streaks are entirely wanting. In 
two or three specimens the ground colour of the under side is a 
rich golden green, very different from the pale blue green under 
sides of my Hungarian specimens, which are all heavily streaked 
with silver; the latter are decidedly larger than the Corsican 
examples, and of course not nearly so dark. 
A few days later and we were back again at Vizzavona. Here 
things had certainly advanced in our absence. A. elisa of both 
sexes was now very common all round Tattone, but not out yet 
at Vizzavona itself. Amongst the chestnut trees or in the hay- 
fields near Tattone station fine fresh Satyrus circe were quite 
common, and S. neomiris was frequent; while on the yellow 
sparttwum—which looks so much like broom but isn’t—LZ. beticus 
was by no means rare, and occurred up to Vizzavona station. 
Near here also we frequently took odd specimens of the fine 
form of C. argiolus var. parvipuncta. Our beautiful purple 
field of knapweed and mallow had been ruthlessly mown, and 
the butterflies had disappeared; but hosts of still fresh 
P. cardui and E. var. hispulla were abundant amongst the 
bracken further up; and C. edusa, with no var. helice, raced 
over the little flowery patches; and before we left odd examples 
of D. paphia were secured, for it was just beginning to come out 
on July 18th. These paphia and those which we took at Corte 
all incline very considerably to var. immaculata. I took none 
that could be considered type, and in many cases there is no 
trace whatever of silver on the under side of the hind wings. 
One or two specimens of var. valezina also have no sign of silver 
markings, but are of a very rich green all over. 
We had naturally been always keenly on the look-out for 
Papilio hospiton, and had searched miles of country all round 
Vizzavona and Tattone for larve, but we never saw a sign of 
anything approaching either the butterfly or the larva, and I 
could only suppose that owing to the late season it was not yet 
out. There was a good deal of a species of fennel growing 
between Vizzavona and Tattone, which I thought very likely 
might be the food-plant of P. hospiton, but there were no larve 
on any of these plants. When we returned to Ajaccio, 1 meta 
French entomologist who lived there, and he gave me a lot of 
information about P. hospiton. He said it was certainly fully 
out, and the previous Sunday he had taken four near a village 
between Tattone and Corte, which he considered its headquarters ; 
but that it was extremely local, and only to be found where its 
food-plant grew, and that the fennel I had seen at Vizzavona 
and Tattone was not the one the larva fed on; in fact it did 
not grow in that district at all. When I asked him why other 
collectors had found P. hospiton near Tattone, he said he con- 
sidered that they were chance examples which had been carried 
