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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Butterflies and Moths (Lepidoptera) » Moths » Bombycoidea » Giant Silkworm and Royal Moths (Saturniidae) » Silkmoths (Saturniinae) » Attacini » Hyalophora » Cecropia Moth - Hodges#7767 (Hyalophora cecropia)
Photo#126848
Cocoon - Hyalophora cecropia
Copyright © 2007 Gord Harrison

Cocoon - Hyalophora cecropia
Munden, Haliburton, Ontario, Canada
June 28, 2007
Size: 4 inches long
This is a very large fibrous, but light, cocoon about 4 inches long and 3.5 inches in circumference at the widest point. It is not a cecropia because it lacks its darker color and strength. I found it in a cluster of saplings at the base of a large ash tree. There is no visible exit hole and I'm certain it is not a gall. Can someone help me identify it?
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Contributed by Gord Harrison on 13 July, 2007 - 4:03pm
Last updated 25 November, 2009 - 12:11am

Moved
Moved from Giant Silkworm and Royal Moths.
… Charley Eiseman, 25 November, 2009 - 12:11am login or register to post comments

We get the sense that this image is upside down
Would that help with the ID, if true?
… john and jane balaban, 25 December, 2008 - 9:56am login or register to post comments

Cocoon
I agree that doesn't look much like a cecropia, but I've been researching cocoons lately and I've found nothing else that even approaches that size. Also, the way it is attached to the twig along one whole side matches what cecropias do, and I haven't found descriptions of any other silk moths attaching them that way. Maybe it looks like that (and is flimsier) because it's old and decomposing? It seems to have a trace of the pale bluish tinge that was on the only cecropia moth cocoon I have seen in person.
… Charley Eiseman, 15 December, 2007 - 10:26pm login or register to post comments

Cocoon
I have been watching this posting hoping someone would tell you what it is. It looks like some kind of Saturniidae, Giant Silkworm Moth, cocoon but what type I do not know.
… Richard Wasson, 21 July, 2007 - 10:24am login or register to post comments

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