A PRELIMINARY LIST OF THE INSECT-FAUNA OF MIDDLESEX. 205 
next day. On July 11th, being just a month since it emerged 
from the egg, the larva commenced crawling restlessly about. I 
then found it time to place a gauze covering over the plant, the 
_ plants having been entirely uncovered since the death of the 
females. After roaming about for several hours it attached itself 
to the gauze, early morning on the 12th, and pupated mid-day on 
the 13th, producing a male imago on the 31st July. 
The above history refers to one individual, but I was successful 
in rearing almost the entire number, as I lost only one larva, 
which apparently was a weakly one all along; it succeeded in 
fixing up for pupation, but then died; two pupe died goon after 
pupation, and a few I sent to a friend; therefore my casualties 
were but very few. I had in all about seventy-five pup, which 
all produced imagines, except those mentioned above. 
My series consisting of sixty fine specimens,—twenty-nine 
males and thirty-one females,—which makes the proportion of 
sexes about equal. They exhibit but slight variation, either in 
size, colour, or pattern. With few exceptions, the most noticeable 
are two males with semitransparent secondaries, which is due to 
lack of colouring pigment, having, in certain lights, the appearance 
of being scaleless; another specimen, a female, has the marginal 
band pale smoky brown, tinged with pink, and the series of spots 
much enlarged, forming almost a median yellow band. Many of 
the males have the secondaries shot with a beautiful rose-purple 
bloom, which is entirely absent in the females. I have just 
succeeded in obtaining a few eggs from a female, captured yester- 
day; therefore I hope to rear a second brood this autumn. 
August 20, 1892. 
A PRELIMINARY LIST OF THE INSECT-FAUNA OF 
MIDDLESEX. 
CompirteD sy T. D. A. Cocxerett, F.Z.S., F.E.S. 
(Continued from p. 185). 
LEPIDOPTERA. 
Cidaria miata, L., Mill Hill, two at sallow and two at sugar 
(South) ; Bishop’s Wood (Knaggs fide Vaughan) ; Chiswick, once 
beaten from ivy (Sich); Oxhey Lane (Rowland-Brown) ; Harrow, 
1881 (Watts) ; Harefield, one or two taken most seasons in the 
gardens (Wall). C.corylata, Thnb., Mill Hill (South) ; Bishop’s 
Wood (Vaughan); Pinner, 1882 (Watts); MHarefield, occurs 
sparingly (Wall). C. truncata, Hufn. (= russata), Mill Hill 
(South); Bishop’s Wood, Hampstead, Kingsbury, Old Oak 
Common (Godwin) ; Whitton (Rendall) ; Harefield (Wall). 
U2 
