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Orange-striped stonefly

Perlodes mortoni


A stonefly nymph (Order: Plecoptera).


Clean, rural stream in Wales.


"The Orange-striped stonefly, Perlodes microcephalus, is widespread in Europe. However due to differences between British and other European populations, the British Orange-striped stonefly has now been classified as a separate species, Perlodes mortoni. The most recognisable difference is that in Britain the adult males are flightless with wings reduced to a stub, whereas elsewhere they have a variety of wing length, some having fully formed wings. Note – the adult females in all populations have fully formed wings." Information from

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Wales, United Kingdom

Spotted on Apr 7, 2013
Submitted on May 6, 2013

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