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5102 Views 2 Replies Last post: May 12, 2010 10:49 PM by Spooked RSS
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May 9, 2010 11:11 AM

Large Cocoons

Hi all.

In the shed at the top of my garden I have found several large cocoons of a VERY strong thread like substance.

The first time I found one I was trying to lift a old riding boot from the floor but had to pull very hard.

The boot came away and underneath was the cocoon with several long, straight chambers.

In the chambers were yellowy coloured grubs about 2-3cm long.

Can someone tell me what they are please?



BTW, is there an option to receive an e-mail when I get a reply??

  • Currently Being Moderated
    May 9, 2010 9:50 PM (in response to Spooked)
    Re: Large Cocoons

    These sound like a very good description of the cocoons of the Bee moth, Aphomia sociella. The female of this common moth lays her eggs in the abandoned nests of bumblebees and wasps, the ensuing caterpillars feed on the old comb, detritus, wax and any dead bodies of the former occupants. When they are ready for pupation they up and leave and pupate together in these masses, which are often spun between planks of wood or narrow gaps between two adjacent surfaces. These are usually an indication that there was bumblebees nest beneath the shed last year.

    The cocoon mass looks like this:

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