OF INJURIOUS INSECTS. 
15 
At Knebworth, Herts, tliey are noted by Mr. Benj. Brown as first 
observed on tlie 4tli of June ; on the 21st a specimen was seen 
ovipositing on Trefoil; the larva hatched on the 29tli, and fed a few 
days on White Clover, but then died. The second brood began to fly 
on the 30tli of July (one fresh from the chrysalis being taken on that 
day), and the numbers continued to increase till the middle of August, 
a few remaining till the 2nd of October. Near Maldon, Essex, 
Mr. Fitch’s almost daily notes show the imagos as first observed on 
the 6tli of June, and eggs laid the same day on Trefoil, which hatched 
on the 14tli, the first pupa being observed on the 9tli of July; eggs of 
the second brood, laid on the 29tli of July, hatched on the 7tli of 
August, and pupae were observed from the 12th to the 29tli of 
September. The presence of the butterfly was noticed on eighteen 
days from June 6th to July 2nd, and (after its absence during the 
following twenty-eight days of July) it was again noticeable on the 
30tli, and continued, with the exception of the 10th of August, and 
three other days, till the 1st of September, the appearance not wholly 
ceasing till the 6th of October. Of the hundred and six imagos bred 
by Mr. Fitch, from the 21st of July to the 15th of August, forty-nine 
were males, fifty-seven females; those hatched during the first few 
days being only males, those during the last few days only females. 
At Islewortli I observed the butterfly first on the 15tli of June, and on 
the 20th they were moderately plentiful, and continued (but only as 
scattered specimens, or a very few seen near together) throughout the 
warm weather. Of a few eggs sent me by post the larvae hatched, and 
fed on young Clover leaves, but all died in the course of two or three 
days. A few specimens of the Edusa had been seen in the district in 
the previous year. At Addington, Winslow, Bucks, Mr. J. Matlieson 
notes the appearance of the butterfly in some numbers in August, 
continuing till the 6tli of September (the date of the observation); 
two specimens only, a male and a female, having been observed in the 
previous twenty-three years, these appearances years apart, and the 
latest in 1868. At Strathfield Turgiss, Hants, the Bev. C. Griffiths 
gives the earliest of any of the noted dates of appearance; this was on 
the 25tli of May; the butterflies subsequently occurred in profusion in 
July, and were common in August, and—as at Great Cotes—there was 
a great preponderance of males, out of one hundred and fifty captured 
only four being females. The butterfly is also mentioned by Mr. W. 
Buckler as in great quantities near Emswortli, Hants, in June. At 
Marlborough, Mr. Manders notices the first appearance on June 9tli; 
the last, as far as known, not later than October 2nd; the greatest 
amount on August 24tli, nearly all the imagos being female: one 
specimen was observed to lay two eggs on separate plants of Trefoil, 
