Dagger Moth Caterpillar Infestation in Florida

Caterpillar
Hi I’d like ot know what kind of caterpillar this is…  (Please see attached)
Thanks in advanced!
I live in Daytona Beach, Florida, USA
Nick’s Photography & Video to bugman

Hi Nick,
We have spent considerable time unsuccessfully trying to identify these Caterpillars.  Can you provide any additional information on the sighting, including the plant they were feeding upon or observations on their behavior?

Well I can send u a picture of the tree they are feeding on… there are all over coming down and also dropping out of the tree… they also seem to be using around the truck of the tree as a sleeping haven also even all branches … Also we have a link for you to click on to view what ever talking about…
also the fresh leave are falling from the tree they are half chewed away and they also i c like the stem of the leaves so i have alot of fresh leave from every minute from the tree…They walk very fast!!!
http://homepage.mac.com/nicksphotovideo/Caterpillars/
Thanks
Nick
Daytona Beach, Florida
p.s. I will be also contacting the news on Monday….

Thanks for the additional information Nick.  Having more photos to consider is wonderful.  We suspected that this must be an unusual sighting due to the number of Caterpillars in your photo.

Update:  January 3, 2016
We just received an update indicating that this is a Dagger Moth Caterpillar.  According to BugGuide, the caterpillars feed upon:  “Elm, hackberry, sumac.”