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Photo#291368
Hover fly parasite - Diplazon laetatorius - female

Hover fly parasite - Diplazon laetatorius - Female
Bear, New Castle County, Delaware, USA
June 19, 2009
Size: ~ 7 mm
This Wasp was jumping around a Spoonleaf Yucca, same plant as shown here, stealing liquid/honey from Aphids which were being guarded by Ants. The Wasp was using same technique as the ants, using its antennae to poke the Aphids until they produced a bubble of liquid. Even though the Ants are smaller, they attacked the wasp but he just jumped to another group of Aphids.

Images of this individual: tag all
Hover fly parasite - Diplazon laetatorius - female Hover fly parasite - Diplazon laetatorius - female

Moved
Moved from Diplazontinae.

Moved
Moved from Ichneumon Wasps. Thank you Ross!

Diplazontinaeā€¦
Sorry for missing this earlier, but it does fit this subfamily in the head shape, coloration, and the distinctive leg patterning and wing stigma. This is likely a male grabbing an energy drink. Domingo was right!

See reference here.

Ichneumonidae...
This is a known but rarely seen behavior you have observed (parasitic wasps feeding on honeydew from aphids). Nice work. I don't believe there is enough details here to determine a subfamily here, so I would leave at the family level for now.

 
Thanks Ross!
..

Maybe a syrphid fly parasitoid.
For more about this story, see here.

 
Thanks Domingo!
Thanks for the link to a very interesting story. I did not see any Syrphid Fly larvae but they may be along soon to feed on Aphids so I can see a possible connection. At this point the Wasp was just taking the opportunity to get some honeydew.

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