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Hello, a friend took the photo of what looked to me like a biting midge on a Cape river frog in the wild at Kleinmond in South Africa in spring this year. Google Earth location about -34.34, 19.00.

I assumed that it was Ceratopogonidae, of which we have plenty of local spp as far as I know. Whether this specimen has its mouthparts extended,or whether I just imagined that I saw a proboscis touching the frog, I don't know, but in either case I clearly was wrong and Stephane Lebrun kindly assisted me as he has done in the past.

Stephane's diagnosis is Ephydridae cf Hydrellia or a similar genus. This leaves me wondering about its biology, and whether it is a common visitor to frogs, or whether this observation is strictly adventitious.

Comments welcome, as always.

Jon