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Photo#1194056
Parasitic or phoretic mites?

Parasitic or phoretic mites?
Las Cruces, Dona Ana County, New Mexico, USA
February 25, 2016
Size: approx. 0.25 mm
This female bee (Andrenidae?) was caught in a pheromone trap for Mexican Fruit Fly. The ethylene glycol used as the killing agent gave the specimen a greasy appearance. Upon closer inspection, I noticed a group of mites still clinging to the dorsal area of the first abdominal terga. Parasitic or phoretic mites?

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Parasitic or phoretic mites? Parasitic or phoretic mites? Parasitic or phoretic mites? Parasitic or phoretic mites?

Moved
Moved from ID Request.

Phoretic
Look like Uropodidae to me, but wait comment from real expert:

 
Thank you Pierre!
I appreciate your hint.