18 
THE WEEKLY ENTOMOLOGIST. 
Entomologists are reckless in their 
use of the means that nature has given 
them, — that instead of using them in 
the way she desires, they employ a 
part of them for other purposes. This 
being the case, we can easily under- 
stand how it is that species are exter- 
minated. "What mean those long rows' 
of local insects in a collector’s box ? 
Ask him, and hear what he tells you. 
“I got those specimens in a meadow 
last year. They were very local, but 
common where they occurred, so I 
soon succeeded in taking fifty or sixty 
of them. It was well I did, for I 
went again this year, and there was 
not one to be found.” 
Now doubtless, many insects are 
captured in this •wholesale way, for 
exchange, or, worse still, for sale; 
but very many, we believe, by truly 
liberal Entomologists, who take them 
to supply vacancies in their friends’ 
cabinets. To the rigorous exchanger 
of, or dealer in insects, wo know 
that we address ourselves in vain, 
but to the class alluded to above, we 
venture to say, in passing, Forbear! 
Never mind your friends. If they 
are worthy of your intended kindness 
wo feel sure that they would far 
rather go long without a specimen oi 
an insect, than have a species exter- 
minated on their behalf. 
"By these remarks we mean to point 
out that there cannot bo too many 
Entomologists, so long as they arc 
Entomologists of the right sort, — that 
is, students of the science. If every 
body would constantly bear in mind 
that specimens are not of the slightest 
value, except as they are the means 
of gaining scientific knowledge, 
and would keep the means clearly 
distinct from the end, we should 
hear no more about the extermination 
of species. In closing then, we 
would say emphatically, — Wanted 
Entomologists. 
LEPIDOPTEKA. 
Double-broodedness of Eupithecia 
virgaureata. — During the month of 
May Mr. D’ Orville of Alphington, 
kindly sent me a number of impreg- 
nated eggs of Eup. virgaureata, laid 
by females bred in confinement : these 
hatched in the course of a few days. 
I supplied the young larvae with 
flowers of Antliiscus sglvestns, — com- 
mon parsley. Upon this they fed 
and had all spun up and turned by 
the end of June. They were in 
colour and general appearance almost 
precisely the same as the ordinary 
autumnal larvae which I have been in 
the habit, for some years past, of 
taking upon the golden Rod, Solidago 
virgaurea, in September and October. 
The perfect insects began to emerge, 
during the last week in July, and 
had all come out by the end of the 
second week in August. They Avere 
rather smaller and Tlarker in colour 
than the spring brood. I obtained 
impregnated eggs by putting a sprig 
of Golden Rod in a bottle in the 
breeding box. They hatched in a 
few days, and tho young autumnal 
