430 My. T. H. Briggs on 
In the summer of 1866, I heard that Trifolii occurred 
in Stowe Wood near Oxford, and I found a marshy place 
exactly similar to the spot in Tilgate Forest; here, on 
the 17th May, with the aid of M. Dembski, I found a few 
very young larve of a species of Zygcena, feeding on the 
large species of V'rifoliwm I have before mentioned, 
amongst the rushes; when they were larger I described 
them (see Appendix, No. 1). 
I then wrote at once to Mr. Whall at Thurning, close 
to Barnwell Wold, begging if it were possible, for some 
larvee of the small early V’rifolii found there. One cater- 
pillar of a Zygcena was all that could be found ; Mr. Whall 
stating that the caterpillars were nearly all spun up (Obs.— 
The Stowe Wood larv were quite young). This cater- 
pillar was quite different in its markings from the Stowe 
Wood larve, as will be seen by comparing its description 
(Appendix, No. 3). As Filipendule also occurs here, i 
is just possible that it might have been a variety of that 
insect, but it agreed with Mr. Hellins’ description of T'ri- 
folii (Ent. Mo. Mag. iii. p. 118) in the peculiar shape of the 
dorsal black spots; Mr. Hellins especially mentions the 
x -like dorsal black spots. I have spoken of the dorsal 
line, i. e., the ground-colour, as consisting of a row of 
transverse lozenge-shaped spots, this is the same peculiarity 
differently expressed. I determined to write to Mr. 
Hellins as soon as convenient, asking if his 7'rifolii came 
from a dry or moist locality—I anticipated the answer, 
dry. This caterpillar unfortunately died. 
Before this larva died, I wrote to J. H. Wood, Ksq., of 
Tarrington, in Herefordshire, who had informed me that 
Trifolii and Lonicere both occurred in that neighbour- 
hood. He wrote me at once, stating that he was unsuc- 
cessful in finding me any T’rifolii larvee, but sent six 
Lonicerce larvee feeding on Lotus corniculatus ; these are 
the larvee described in the appendix to this paper as 
Zygena, No. 2. I then wrote to Folkestone for larvee of 
Filipendule, which duly arrived; thus at the same time 
I had four distinct varieties of Zygena larve, Filipendule, 
Lonicere, and the late marsh T’rifolii, all of which I bred, 
and the supposed early Yrifolii which died, but whose 
peculiar characteristics, so different from the late T’rifoli, 
is corroborated by Mr. Hellins, as before mentioned. I 
took all the larve to Professor Westwood, who himself 
enlarged, and closely corrected the appended descriptions. 
