VARIATION. 137 
8.—During the whole of the summer months, May-August, the 
larve of Myelois pinguis inhabit the living bark of ash, frequently 
pollard trees, never affecting any dead or decayed portions of a tree, nor 
penetrating into the wood. It does not eat far into the bark, however 
thick, and a few long black grains of frass block the entrance. This 
frass is characteristic, and should be looked for when searching a tree 
on any projecting bosses as well as on the spreading foot, for stray 
grains of frass detected below afford a good clue to the situation of the 
mine above (Buckler). 
9.—The larvee of Crambus salinellus should be searched for in May 
and June, under stones resting on Poa grass. Turning over the stones 
exposes the tubular gallery attached to the lower whitish sheaths of 
the grass towards the roots, or to the stone itself (Buckler). 
10.—From the beginning to the middle of June the larve of 
Plutella annulatella are to be found on Cochlearia anglica. 
11.—The larve of Gelechia albipalpella make conspicuous blotches 
in the young shoots of Genista anglica in the early part of June. 
12.—In early June the pale green larvee of Hypolepia sequella may 
be beaten from maple. They are exceedingly active. 
- 138.—The larva of Penthina corticana feeds on birch and sallow, in 
May and the early part of June. 
14.—The larve of Anarsia yenistae should be collected in May and 
early June, when they are feeding on the shoots of (Genista tinctoria. 
The larvee of A. spartiella feed on shoots and flowers of furze at about 
the same time. 
15.—The larve of Gelechia yerronella may be found in the early 
part of June feeding on furze. 
N.B.—Hundreds of similar ‘‘ Practical Hints’ referring to a very 
large proportion of the British lepidoptera, have been printed in the 
preceding volumes. 
X7 ARIATION. 
ABERRATION OF LopHoPTERYX CAMELINA.—I bred, on July 30th last, 
a curious dwarfed example of Lophopterya camelina, without lobes on 
the inner margin of the forewings.—F. G. Wurrtte, 3, Marine Avenue, 
Southend. 
Aserration oF Nocrurps.—In looking through my collection, I 
have noticed the following forms ali taken near here: (1) Leucania 
favicolor (or very near), spotless. (2) L. pallens var. arcuata, Xylo- 
phasia monoglypha var. aethiops, and Grammesia trigrammica var. 
obscura.—Ieiw. 
VARIATION IN WIDTH OF MARGINAL BAND OF CyYANIRIS ARGIOLUS.— 
Some of my female Cyaniris argiolus, which I have taken here, are 
rather striking on account of the blue having a tinge of chalkiness in 
the tint, whilst the black on the costa and the hind-marginal black band 
of the forewings are of considerable width. This is in marked contrast 
to two which I have bred this year from pup kindly given me by my 
friend Dr. Crallan, in which the band in the forewings narrows rapidly 
after about the middle of the wing, in one insect to a point, and in 
both specimens disappearing before reaching the inner margin. My 
first bred specimen—a male—emerged on April 6th. The first cap- 
tured—likewise a male—was on April 20th.—JosepH ANDERSON, 
Chichester. ay 2nd, 1900. 
