Wednesday 4 March 2020

Opacifrons humida at Dalgety Bay, 03/02/2020

A few small flies were swept around the edge of the bay and the pond margin. Leptocera fontinalis and Lonchoptera lutea were featured along with the ephydrid Parydra quadripunctata.

However, new to me and the second location for Fife was Opacifrons humida (as NBN and the key but in the new British list Pseudocollinella humida). This is a sphaerocerid which is so dusted it's almost olivaceous. It has prominent pre-sutural acros and three pairs of DCs.

Habitus

3 DCs, pre-sutural acrostichals

Wings of O.humida and L.fontinalis

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