3 
of this species : “I commenced forcing the pupae at the end of August, 
when the bulk had been brought in, but 5 or 6 were brought to me 
later in the year. My forcing arrangement is simply a deep box, 
half filled with earth, upon which the pupae were placed, and covered 
with moss. The box, covered with muslin, was placed upon a couple of 
bricks standing upon the kitchen oven, and was copiously watered with 
warm water morning and evening. The temperature remained pretty 
constantly at from 80° F.to 90° F., only rarely being observed to fall 
below this. The imagines began to appear in a fortnight, and con¬ 
tinued to do so for about six weeks ; but the later specimens bred 
belonged to pup® found later, and these also appeared after a fort¬ 
night to three weeks’ treatment. The whole number dealt with was 
42. Of these 15 died under the process, 5 came out hopelessly 
deformed, and 22 are set out, and appear to be more or less perfect. 
The two dark specimens at the top of the first row were the last to 
appear, and belonged to the latest pupae captured. The deformed 
specimens appeared to me to owe their misfortunes to insufficient 
moisture, when, being absent from home, I was unable to give the 
water required.” Larv/e op Acxdalia dilutaria (holosericata).— 
Mr. Riches exhibited larvae of Acidalia dilutaria (holosericata ), from 
ova laid on Oct. 12th, and hatched on Nov. 13th. Bohemian bat. —Mr. 
Sauze : Iihinolophus hipposideros (the Lesser Horseshoe Bat), from 
Johannisbad, Bohemia. Variation of Acherontia atropos. —Mr. 
Tutt made the following remarks on the series of A. atropos , bred by 
Mr. Burrows : — “ The specimens vary in the shape of the wing, the 
costa being much more hollowed in some specimens, and more convex 
in others, than is normally the case. The apices of the fore-wings are 
rounded in the least pigmented specimens. Sometimes the outer 
margin is more angular. In others, again, the wings are distinctly 
narrower. The hind-wings, in some specimens, are quite hollow. 
The skull mark on the thorax varies. In some the colour of this is 
whitish-grey, in others dark, in others, again, ochreous; in the more 
extreme it becomes deep brown, until in one or two the mark is only 
faintly traceable, having blended, as it were, into the ground-colour. 
The anterior edge of this mark is very variable; in some specimens it 
forms a simple convex curve ; in others a series of three small curves; 
in others, again, it is angulated or pointed. The abdomen varies from 
pale yellowish to darker orange, which in some inclines to brownish. 
The black longitudinal streak down the centre of the dorsum of the 
abdomen is much broader in some specimens than others. On the 
fore-wings the basal marking is distinctly double, and traceable to the 
inner margin ; in others, only the inner line is shown, and this does 
not reach the inner margin of the wing. In some the marking is 
concolorous with the rest of the wing. The angulated line, which 
extends occasionally from the costa to the inner margin, is pale; 
usually it is not to be traced on the inner half of its course. The 
subterminal is less distinct, but very variable in intensity. The brown 
colouring, extending from the costa along the upper half of the wing 
to the centre, is very much developed in some specimens, almost 
absent in others. In three or four specimens the wings are badly 
scaled at the tips, the rest of the wings being unicolorous, blackish. 
The central spot is much larger in some specimens than others. In 
the hind-winys the nervures between the two bands are very variable 
