THE LEPIDOPTERIST’S CALENDAR 97 
SEPTEMBER. 
“Second appearances” are now becoming more common. Among the Bombyces ae 
cially, it is not unusual to find two series of transformations in the twelve months; but, b 
a wise provision of nature, the development of a portion of the brood is sometimes ined: 
With some of the Geometrina, THREE broods are regularly obtained in confinement; while 
some of the Bombyces, Psycidie, and Coleophore, require twenty-four months, and even 
more, to enable them to complete their round of metamorphoses. 
It is impossible to detail the mode best adapted for the capture of each individual 
i deca in this or any other month; if will be sufficient separ to remind the collector 
that the character of the locality in which he happens to be, and the nature of the species 
he is seeking, must be his chief guide, not forgetting the fact that, however far Moths may 
fly, they generally return for rest to, or near, what were their food-plants when Larve. 
There is no more a ‘royal road” to rarities than there is to learning. The collector may, 
however, be reminded with advantage of the value of the etthiig-attas ; while by sweeping, 
many species, both in the Imago and Larva states, which would remain invisible, are brough 
to light. All kinds of places form a harbour for insects. The beating-stick should be ener- 
getically applied to heaps of dry rubbish, masses of grass, reeds, weeds, &e., tangled 
underwood, haystacks, and thatch (the latter harbours many Depressaria, &e.;) while 
scarecrows,” tree trunks, leaves, flowers, palings, posts, fences, walls, heaps of stones or 
sticks, logs of wood, out-houses, roofs, &c., all furnish lodgment-space, and a means of con- 
cealment to various species, and should be scanned vigilantly. Vigilance, indeed. is 
especially required, for many species closely resemble the substances on which they are in 
the habit of resting. 
