Caperer Caddis Fly Halesus radiatus

Caperer Caddis Fly Halesus radiatus

A side benefit of my moth trap is that it also attracts a lot of other insects that are on the wing at night, especially beautifully patterned and coloured caddisflies like this one.

Caperer Caddis Fly Halesus radiatus

There are only 8 species of this genus Halesus in Europe, and only 2 in Britain. They are known as the angler’s Caperers. They can be very hard to separate without close scrutiny of the genitalia.

Caperer Caddis Fly Halesus radiatus

Halesus radiatus has a forewing length of 17-23mm, and the dark speckling between the forks in the veins help to form well-defined pale streaks compared to Halesus digitatus.  Found in streams, rivers and lakes. The adult flies July to August. Common and widespread throughout.

Caperer Caddis Fly Halesus radiatus

October 2017, rear garden, Staffordshire, England.

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