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Leaf-footed bug, maybe Acanthocephala terminalis? - Acanthocephala terminalis

Leaf-footed bug, maybe Acanthocephala terminalis? - Acanthocephala terminalis
Pinellas County, Florida, USA
March 1, 2012
Is this Acanthocephala terminalis? I had several leaf-footed bugs on several Horrible thistle plants and the antennae coloration varies on several of my photos. The one attached has antennae that are distally red/orange and on another photo it is distally light gray. Are the antennae different color based on age or does this always point to a different species of Acanthocephala?

Moved from ID Request.

A. terminalis would be my call.
It's got a tachinid egg on its back.

The antennae vary a bit, and different shades don't necessarily mean a different species. Check the shape of the tibial extensions. If they match the ones on this specimen, you've got another terminalis.

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