Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Information about the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

big brown caterpillar - Xylophanes tersa

big brown caterpillar - Xylophanes tersa
Meadowlark Botanical Gardens, Fairfax County, Virginia, USA
October 11, 2009

Moved from ID Request.

looks like
Tersa Sphinx - Hodges#7890 (Xylophanes tersa)

i dont know what that scabbyness on it is from, maybe a fungus..

very interesting. so the whit
very interesting. so the white coloration could be a fungus? if it helps to figure out what it is I have a bunch more pictures on my website here:

I didnt want to flood the guide with all of these but some are very closeup and may give some clues.

It does look like a fungus.
Poor caterpillar! Did you decided to rear it or leave it where it was? It'd be interesting to see if it makes it through pupation to adulthood of if perhaps this growth gets worse. Those are some nice pictures though. Perhaps one of the editors who is good with fungi will make a comment on it and want you to post the pictures.

I would be happy to post any
I would be happy to post any of those pictures if it would be helpful. I did not rear it and found it at the Botanical Gardens so I doubt I will see it again. Too bad!

A quick Google search shows that it is on Fairfax county. It is always a good idea to fill in that field so that it can show in Google maps when you use the advanced search. I suggest that you do the same for your other submissions.

Sphinx Moth
I'm not sure which genus, but I think its Xylophanes. There are a few people on here that are great with this family though so I'm sure they'll correct me or confirm :)

thanks for the info.
thanks for the info.

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.