156 {December, 
I have made these notes upon the larva of teucrii because its peculiar — 
habits interested me: but the merit of its discovery, in the first instance, 
belongs to Mr. N. Greening, of W arrington, who has already (E. M. M. iy 
pp. 16 and 39) given a description (under the name of hieracii) differing very 
slightly from my own. 
PTEROPHORUS (MIMasopriLus) PLAGIODACTYLUS. 
On May 19th last, I went over to my favourite chalk-pit, determined, if 
possible, to make the acquaintance of the larva of Pterophorus plagiodactylus, 
The sloping-banks of the pit are covered with a profusion of wild flowers, and 
among them Scabiosa columbaria and arvensis grow in abundance. 
At this time, these plants were throwing up strong shoots, and growing so 
rapidly, that the infested portions of the plant were almost directly covered, 
and concealed by the healthy shoots, so that I had no little difficulty in dis- 
covering the whereabouts of the larva. 
The mode of life is this:—the larva gnaws a hole in the side of a young 
shoot, and, working up, devours its anterior substance, proceeding from shoot 
to shoot till full-fed, when it attaches itself to the plant by the anal segment, 
and becomes an angular, bright green pupa, beautifully edged and pointed 
off with pink, and entirely without hairs. The favourite food-plant is 
Scabiosa columbaria, but 8. arvensis serves as a substitute, and in the fens 
the moth is common among 8. succisa. 
This species is double-brooded, appearing in May and June, and again in 
August, the larva feeding in May and doubtless again in J uly, but in the 
latter case the mode of feeding has still to be observed, as the plants are then 
well grown. 
The larva of plagiodactylus, when full-grown, is about five lines in length, of mo- 
derate proportion, neither stout or slender, tolerably cylindrical, tapering a 
little posteriorly ; the head rounded and rather smaller than the second seg- 
ment, of a very pale colour and shining; the body is very pale olive-yellow, 
with a conspicuous brown dorsal line attenuated at each end, and with two 
faint lines along the side a little deeper than the tint of the ground colour; on 
the lowest line are the black spiracles each on a slight swelling; the tubercular 
warts are of the pale ground colour and furnished with rather long curved 
whitish hairs ; the head and other parts of the body emit short hairs,—W. B. 
My friend Mr. Buckler has figured the larva of this and other plumes, 
and has kindly consented to describe them for me. 
PTEROPHORUS (Leiopritus) Limnictanus. 
Early in July, 1870, in a country lane some miles from Norwich, I chanced 
to find a plant of Artemisia vulgaris, the leaves of which were eaten in a 
fashion different to anything I had before seen, so curiously, indeed, that I 
could not at the time imagine to what Jamily even the larva could belong, and 
to make the matter worse, it appeared to be quite deserted. At homeI again 
examined the plant, but finding nothing, threw it aside, and was not a little 
