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Observed: 19th May 2013 By: Martincito
Added: 20th May 2013
Copula of small black flies photographed today on the outside of a window, here in Ipswich, Suffolk. Each about 7 mm from head to tip of abdomen. I can see the apical circlet of spines on the tibia and some medial spines. Reflection in photos caused by the flies posing on outside of conservatory.