Thanks for the suggestions. I can tell you that this is definitely not a sawfly larva. These were not living in any communal nests either (per BugGuide description of Y. cagnagella larvae). I finally had a bit of time to look. It looks a lot like this: http://bugguide.net/node/view/715628
I only know one type of such yellow caterpillar with a completely black head: Yponomeuta cagnagella. But I might be miles away, just a hint. Maybe a early instal? I first also thought about saw fly larva. Just a few thought, nothing really serious... http://bugguide.net/node/view/194368 http://bugguide.net/node/view/70367/bgim...
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It makes more sense that I found an adult moth of this species in the same area of the garden in 2012: http://www.projectnoah.org/spottings/115...
I'm a bit surprised I haven't seen more of them. I guess they are good at hiding. They are not large moths. :-)
Cool!! Good job! For me a perfect match!
http://bugguide.net/node/view/715641/bgi...
Note the "forked" tail, I forgot to mentioned in my first comment.
Thanks for the suggestions. I can tell you that this is definitely not a sawfly larva. These were not living in any communal nests either (per BugGuide description of Y. cagnagella larvae). I finally had a bit of time to look. It looks a lot like this: http://bugguide.net/node/view/715628
I only know one type of such yellow caterpillar with a completely black head:
Yponomeuta cagnagella. But I might be miles away, just a hint. Maybe a early instal? I first also thought about saw fly larva. Just a few thought, nothing really serious...
http://bugguide.net/node/view/194368
http://bugguide.net/node/view/70367/bgim...