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Photo#171014
spider parasitoid - Acrocera unguiculata - female

spider parasitoid - Acrocera unguiculata - Female
Ithaca, reared from Salticidae sp. found near Beebe Lake; 238 m; N42°27' W76°28.5, Tompkins County, New York, USA
September 16, 2006
A jumping spider my friend J. DeNicola was keeping grew larger, stopped moving, and finally this fly emerged. The date above is when this fly emerged.
Image taken using Dr. Andy Deans's EntoVision imaging system at the NC State Insect Museum.

Moved
Moved from Ogcodes.

Acrocera unguiculata
The antennal attachment point is high on the face, near the top of the eyes. This is a key character that separates Acrocera and Ogcodes (below the middle of the face). The reduced venation in hyaline wings; dark head and thorax; and abdomen with vague orangish-brown spots along the posterior margins of the dorsal segments of the abdomen; and the pale squamae, legs, and coxae all point to a female Acrocera unguiculata.

 
thanks
how do you see the antennal insertion? I don't see anything near the top of the eyes except for the ocelli.

 
Actually the antennae appear
Actually the antennae appear to have been lost. You can see the paired points of attachment just below the central forward ocellus.

 
ah, that's why i didn't see them
i extracted the fly from the webbing in the spider's container, unfortunately it must have suffered some damage.

 
The antennae in Acrocera are
The antennae in Acrocera are small and fragile, and they're placed where they're easily lost. I assumed they were lost when extracting it from the web. Great picture by the way!