THE ENTOMOLOGIST. 407 
forty hours after I found it, in its present very mutilated 
condition. I supposed a bird might have been the cause of 
this mutilation. What is the insect? —G. Bentley Corbin ; 
Ringwood, August 24, 1871. 
The insect is Eristalis tenax : its abdomen was completely 
gone. 
Moths and “ Sugar.”"—Why is it that we so much more 
frequently take males than females of those species which are 
attracted to our sugar-bait? And the same question may be 
asked of “light.” Are we to suppose there are a super- 
abundant number of the former, or that the latter are less 
active, and, consequently, less oftener met with? In rearing 
we often find a pretty equal balance in the number of the two 
sexes; but at sugar, and even with the net, the males are ten 
to one of some species. ‘The other day in speaking on this 
point to a friend, who is much in the habit of sugaring, he 
introduced what to me, at least, was a new hypothesis, v7z., 
that a female of any moth taken at sugar seldom deposited 
eggs, and if such a thing happened they never produced 
larve. Is such a fact proved, and is it well known? It 
would depend, I should say, upon what the so-called “ sugar” 
was composed of, as we are well aware the receipts for it are 
various; some containing poison, others none.—G. Bentley 
Corbin. 
These are questions which my kind correspondents, the 
Rev. Joseph Greene and Mr. Doubleday, are far better 
- qualified.to answer than I am: my experience in sugaring is 
very limited. J hope they will kindly reply. 
Larva of the Cinnabar Moth.—I have forwarded to you a 
box containing a larva, and shall be much obliged if you 
will be kind enough to let me know its name (Latin and 
English). Ihave sent some of the’food I found it reposing 
on; and shall also feel it a favour if you will tell me whether 
it feeds on anything else?’—B. W. Neave; 6, Montague 
Street, Worthing, August 6, 1871. 
The Cinnabar (Euchelia Jacob) is figured No. 68, at 
p. 31, of ‘ British Moths:’ it feeds on the Ragwort (Senecio 
Jacobea), and nothing else. 
Tape-worm in the Biliary Ducts of Salmon.—Can you 
tell me the name of a tape-worm which inhabits the biliary 
ducts of salmon? I got some a few days since, and 
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