Common Sawfly
Genus Tenthredo

This is about the strangest face I've seen on a sawfly or wasp but I haven't seen all that many yet.
Aren't the yellow markings neat in contrast with the orange and black? This one was gawking at me
 at Brighton, Utah.  © Carol Davis, 7-13-2010

Most of the Common Sawfly larvae feed on leaves but some are borers or leaf miners. Eric Eaton has a
great article on this genus of sawfly here.

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