Zygena Trifolit. 435 
is of the size, contour, and has the broad black border to 
the hind-wings, of the early Vrifolii found at Folkestone 
(which was out). Surely these were Hybrids? 
I possess a bred late Trifolii (3) that has assumed the 
more slender antenne of Lonicere ; also a bred Lonicercee 
(3) that has much shorter antenne than usual, approach- 
ing to V'rifolii. These two bred specimens are hard to 
distinguish when placed together. 
I also possess a remarkably large female Zygena with 
jive spots on the upper surface of the fore-wings, and six 
beneath ; I caught it by itself, so cannot decide if it is a 
Filipendule mimicing the late Trifolii, or vice versa ; it 
has none of the appearances of a hybrid. 
This season has been a bad one for V’rifolii, but I shall 
hope next year to be able to elucidate some further facts 
connected with the history of these troublesome little 
creatures. 
APPENDIX. 
Larvee of the genus ZyGmna. 
Generic characteristics. Legs sixteen; head very 
small; larva short and fat, and sluggish; when in repose 
assumes an onisciform appearance, but not.so when 
stretched out feeding. . 
Larva of Z, Filipendule (fall fed). 
Body with whitish hairs scattered over it, but with a 
few black hairs on the back; hairs short, head and fore- 
legs black; head with transverse upper lip, and the 
membrane at the base of the antennz white ; ground 
colour greenish-yellow, arranged in a dorsal line, and 
two lines on each side; dorsal line with a brighter 
yellow spot in the fold formed by the hind-margin of 
Nore. I observed the food plant of the late Trifolii last year, in a 
marshy place on Wimbledon Common, but could find no larva. This 
season I have received information of the capture of a few very large 
Trifolii in July, just in one spot only in the marsh, where I saw the food 
plant. 
HH 2 
