identify 2 insects on aspen trees - Ask Extension
Can you identify these two insects. Both were found on aspen trees a few miles northwest of Leadville, Colorado. The wasp was hovering on aspen bark. ...
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identify 2 insects on aspen trees #849860
Asked September 14, 2023, 8:07 AM EDT
Can you identify these two insects. Both were found on aspen trees a few miles northwest of Leadville, Colorado.
The wasp was hovering on aspen bark. The larvae was on sapwood beneath aspen bark.
Are they both wood borers?
Eagle County Colorado
Expert Response
I think the wasp is a Sirex horntail (https://webdoc.agsci.colostate.edu/bspm/arthropodsofcolorado/Sirex-Horntails.pdf). It is a wood borer.
The caterpillar looks like a carpenterworm. There are several species that bore in aspens and poplars, this one looks like Prionoxystus robiniae.
The caterpillar looks like a carpenterworm. There are several species that bore in aspens and poplars, this one looks like Prionoxystus robiniae.
Thank you very much Frank.
I appreciate it.
