BIOTA
(living things)

Eukaryota
(eukaryotes)

ANIMALIA
(animals)

EUMETAZOA
(metazoans)

BILATERIA
(bilaterally symmetrical animals)

PROTOSTOMIA
(protostomes)

ECDYSOZOA
(skin shedders)

ARTHROPODA
(arthropods)

HEXAPODA
(hexapods)

INSECTA
(insects)

PTERYGOTA
(winged insects)

Palaeoptera
(dragonflies, damselflies and mayflies)

EPHEMEROPTERA
(mayflies, upwinged flies)

HEPTAGENIIDAE
(a family of mayflies)

Ecdyonurus
(a genus of mayflies)

Ecdyonurus
is also a member of:

Invertebrates
(via Arthropoda)

BioImages: The Virtual Field-Guide (UK)

Ecdyonurus (a genus of mayflies)

Warning:	Identification questionable
Date:	7 June 2008
OS grid ref:	SU87
Lat/Lon:	51° 30' N, 0° 50' W
Location:	Vice County: Berks, VC22, England
Voucher:	07/06/2008[B] (Please quote this in any queries about this record)
Stage or state:	Female imago
Record Summary:	Female, at MV
Identification Notes:	Hind claws dissimilar. Keys out to Ecdyonuridae sensu Kimmins. Harker: subanal plate is broadly emarginate, sternite 7 covering 2/3 of sternite 8.

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