Entomology (Study of Bugs)/cocoon identification

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Question
cocoon found in loft
cocoon found in loft  
hi my friend in the uk has found this in her loft. she said it is about 10cm x 4cm. do you have any idea what it is please?

Answer
Hey Emma!

Thanks for the ID question!
WOW that is large! Cocoon or pupae that is the question?

This is what looks like to be a pupa stage of a large beetle. The only way to know more is to dissect the pupa or cocoon shell, and we do not want to damage the creature. Though if you do not mind then dissect it! Then we will be able to positively ID it.

These stages are terrible for ID purposes! If you want to know more dissect the critter or wait until it hatches! I would love to see more if you do which ever option you choose.

I hope this was helpful. If you want more information of time duration for incubation periods I can provide more for you!

Thanks
Chris

Entomology (Study of Bugs)

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Christopher A Rice

Expertise

I can identify and provide clear information on all insects, any of the following: Ants, Aphids, Bagworms, Bats, Bees, Beetles, Birds, Black widow spiders, Brown recluse spiders, Carpenter Bees, Carpet Beetles, Centipedes, Chipmunks, Cicada Killers, Cloth Moths, Cluster Flies, Cutworms, Deer, Drain Flies, Earwigs, Fleas, Flies, Fruit Flies, Gnats, Grasshoppers, Ground Hogs, Grubs, Japanese Beetles, Lice, Lizards, Mice, Midges, Millipedes, Moles, Mosquitoes, Noseeums, Opossums, Pantry Beetles, Pantry Moths, Pantry Pests, Pill Bugs, Rabbits, Raccoons, Rats, Roaches, Scorpions, Silverfish, Skunks, Snakes, Snails, Slugs, Sod webworms, Spiders, Sprintails, Squrriels, Termites, Thrips, Ticks, Turtles, Voles, Weeds, Weevils, White Flies, White grubs and many more..

Experience

I have over 10 years in Animal Identification, Wild Life Diseases, and MED VET Entomology

Organizations
Quora.com yahooanswers.com Allexperts.com (pest control) ID specialist at DMOPC.com

Publications
All about articles @ www.domyownpestcontrol.com for the following: Bed bugs Ants Cockroaches Termites (pending) Rats Mice

Education/Credentials
BS in Biology, minor in chemistry at Valdosta State University

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