Oldbull, thank you, a comprehensive and faultless list.
Perhaps just one to disagree on: "
Arthroplea congener no longer occurs in the British Isles. The only record is of a single adult male taken in 1920 at Stanmore, Middlesex. As a result, a voucher specimen is required for all records of this species."
I hope, as interest in angling entemology increases, that a previously undiscovered stronghold will be found, perhaps by kicksampling?
Quote:
Arthroplea congener
Nymphs: Flattened nymphs with broad heads. The eyes are large and placed on the back of the head. Long brush-like structures (maxillary palps) extend forward from the head.
Adults: Medium sized flies with two tails and large hindwings. The body is dark brown, almost black with each segment slightly paler on the sides and rear edge. Segments 2 to 8 have two dots on either side of the mid-line. The wings are slightly opaque, particularly in the lower half. The legs are brown to dark brown and the foot is much paler. The tails are a smoky grey colour with rings at the joint of each segment, particularly in the segments closer to the body.
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