ON THE EARLIER STAGES OF COLIAS HYALE. 271 
variety; it is unicolorous dark grey, with the nervules upon the 
superior wings paler. Itis rare. The type has several shades 
of ground colour, but the two black streaks and four rows of 
spots, or interrupted bands, are most constant. A series of fifty, 
picked from quite 200, exhibits the following variation :— 
Males. — 1. Ground colour nearly white, with indistinct 
markings; hind wings pale in central area, darker towards hind 
margins. 2. Ground colour almost black; nervules white, spots 
banded; hind wings dark. 3. Ground colour white and silvery, 
markings very distinct; hind wings pale. 4. Ground colour 
yellowish brown, markings always ill-defined ; hind wings paler 
in central area. 5. Ground colour smoky and brownish; very 
searce. The fringes in all cases are pale grey and unspotted. 
The females are seldom so strongly marked as the males; 
they are larger, as a rule, and frequently granulated with dark 
grey scales, the spots being almost absent; the hind wings very 
dark, and without the central area being paler; but in a few 
specimens there is a pale dash running from near the anal 
angle towards the base, similar to Lithosia mesomella, although 
much finer. 
From the above jottings it will be observed that H. cribrum 
ranges from almost white to black, with the addition of a brown 
form. 
Ringwood, September, 1892. 
ON THE EARLIER STAGES OF COLIAS HYALE. 
By F. W. Fronawsg, F.E.S. 
On September 5th last I had the gratification of receiving a 
few ova of C. hyale, which Mr. R. Adkin most kindly sent me, 
with the information that they were deposited about Aug. 29th, 
by a female taken at Folkestone on the day previous; he has 
since also presented me with the parent, which is of the pale 
form. ‘The eggs duly hatched, when I at once placed the young 
larve on a growing plant of Dutch clover (T'rifolium repens), 
upon which they are still feeding. I therefore hope to be fortu- 
nate in rearing them to perfection, and able to report on the full 
life-history, as I believe C. hyale has been seldom bred in this 
country, and, so far as I am aware, its complete life-history is — 
not published in any British work. Both the egg and young 
larva greatly resemble those of C. edusa; the chief differences 
are as follows :— 
Egg.—The spaces between the keels are flat in C. hyale and 
are concave in C. edusa, the transverse ribs numbering about 
forty-six in hyale and about thirty-six in edusa; the colour is 
paler in hyale, especially at the ends. 
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