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

Calendar
Upcoming Events

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

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

TaxonomyBrowseInfoImagesLinksBooksData
Photo#401239
Tree grub or larvae?

Tree grub or larvae?
Hartford County, Connecticut, USA
May 27, 2010
Size: 1.75-2 inches long
A maple tree in our back yard fell last night during a lightning storm. There was quite a bit of rot in the tree trunk, and this large grub-like larvae had fallen out of the tree trunk. Next to it was this capsul created from saw dust. What type of insect is this? It's startlingly large!

Moved
Moved from ID Request.

Not Cotinis
Cotinis ("green june bug")larvae develop in the soil. This is one of the scarabs that develops in dead, rotting wood.

Scarabaeoidea: Scarabaeidae
Definitely a Scarab Beetle grub (Scarabaeoidea: Scarabaeidae)

f.y.i. - The color of the grub indicates that it is dead (they change to a dark slate gray, brown or black when dead. White to yellowish white when alive)

--------------------------

We really need a closer look to make and accurate id. (if that's even possible).

BEST GUESS - possibly a Green June Beetle ???
1) grub proportions (grubs are often much larger than the adult!)
2) size of grub and pupa chamber
3) some experience rearing a number of native eastern Scarab species incl. Cotinis spp.

 
Great, thanks! I can't get an
Great, thanks! I can't get another shot with more detail since it's gone now (An animal probably had a large meal!)
Sorry about the duplicate, thanks!

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