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Nogales, Santa Cruz County, Arizona, USA
December 29, 2017
Size: 1.2 mm (ABL)
Found on a small oak tree
Coordinates: 31.336166, -110.966246

Images of this individual: tag all
Eriosoma? Eriosoma? Eriosoma? Eriosoma? Eriosoma?

Not Eriosoma, Maybe Aphis.
Eriosoma has annular antennae with the processus terminalis shorter than the base; the m-vein is only once-branched; and the siphunculi are poriform.

This specimen has circular sensoria with the processus terminalis many times longer than the base, the m-vein is twice branched, and the siphunculu are tough to see but look short and cylindrical. I'm not positive it's Aphis with these pics but that's what it looks like to me.

Thank you Natalie!

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