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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Butterflies and Moths (Lepidoptera) » Moths » Bombycoidea » Sphinx Moths (Sphingidae) » Sphinginae » Sphingini » Ceratomia » Waved Sphinx - Hodges#7787 (Ceratomia undulosa)
Photo#303385
Large Green Catepillar on ash tree - Ceratomia undulosa
Copyright © 2009 Troy S.

Large Green Catepillar on ash tree - Ceratomia undulosa
st. cloud, stearns County, Minnesota, USA
July 13, 2009
Size: 1 1/2 inch
Saw this climbing slowly up my tree. Just wondering what it is and if it is tree friendly or an invasive insect. I think it could be a Waved Sphinx.
Thanks

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Large Green Catepillar on ash tree - Ceratomia undulosa Large Green Catepillar on ash tree - Ceratomia undulosa Large Green Catepillar on ash tree - Ceratomia undulosa
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Contributed by troymeister on 13 July, 2009 - 1:02pm
Last updated 1 August, 2009 - 9:23am

Moved
Moved from ID Request.
… Beatriz Moisset, 1 August, 2009 - 9:23am login or register to post comments

great ash sphinx??
see this:
http://bugguide.net/node/view/13870/bgimage
… Roar, 13 July, 2009 - 2:14pm login or register to post comments

 
probably
Based on the size its an early instar and may differ from full grown larva.
… Ryan, 13 July, 2009 - 3:54pm login or register to post comments

 
Waved Sphinx
Ash sphinx should have spiracles with a black center, ringed with white. Wagner's guide says that the waved sphinx has many foodplants in common with the ash sphinx, and its spiracles are orange anteriorly and posteriorly with a white center. If you look at the 2nd image, you can see that the spiracle matches the waved sphinx (Ceratomia undulosa) better.

Also, looking at the full resolution of this image, the anal plate has black spots, and the horn is tinted pink, both of which help distinguish the waved from the ash sphinx.
… Mark Fox, 31 July, 2009 - 12:38pm login or register to post comments

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