Subject: Green tubular bug
Location: Albuquerque, New Mexico, Rio Grande Valley
October 15, 2014 6:48 am
Found this in the sand under a tree that has had a moth infestation. Facebook friends say it is a tomato hornworm, but it has no horns or spots and is a long way from the garden.
In our opinion, this is a pre-pupal Caterpillar in the family Sphingidae, and it is burying itself in the ground prior to pupation. As you mentioned, there are no obvious features apparent. If you provide us with a side view and the name of the tree you found it under, we will pursue this identification.
Thanks for the quick response! I can’t find another one, but it was under a cottonwood tree. I will look again later today.
The tree has been suffering from a tent caterpillar infestation.
Thanks for the quick response. This is not a Tent Caterpillar, but since the host tree is a cottonwood, we believe this is in the genus Pachysphinx, most likely a Big Poplar Sphinx or Modest Sphinx caterpillar which is pictured on the Sphingidae of the Americas site.