EPHEMEROPTERA ANNUAL REPORT 2009

Cyril Bennett

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1. Details of any species recorded that are new/rare/unusual to Wiltshire.
(a) Mayfly (Ephemeroptera) – Nigrobaetis niger (Southern Iron Blue) – BAP species. River Avon (Amesbury. River Wylye (South Newton).

(b) Mayfly (Ephemeroptera) Ecdyonurus insignis (Large Green Dun) River Nadder (Barford St. Martin).

2. Have you noticed any significant changes in the distribution of one or more species in the County?
Most mayfly species have reduced considerable over the past 20 years and Wiltshire would seem to be the same.

3. Was it a good or bad recording season? Give details as to why.
Difficult to say has I have only been working on mayflies in this county for 2 years.

4. Were most of the records collected by yourself/ recording groups/public?
Self