FSC | Field Studies Council

Field Studies Council: Bringing Environmental Understanding to All

Mayfly Larvae ID with Microscopes (SE Region)

  • Location: FSC London: Bushy Park
  • Tutor: Steve Brooks
  • Date: Thursday 10 October 2019
  • Times: 10 am - 4 pm
  • Level: Intermediate
  • Course Fee: £5
  • Course Fee + Pictorial Guide: £21

Mayflies are often found around rivers and streams and are excellent indicators of pollution – the aquatic larval stages are widely used to monitor the health of freshwater. They are also a vital food resource for many other aquatic species including many fish species.  

Adults are often found as ‘bycatch’ in moth traps, and many are readily identifiable with a little practice, a good hand lens or microscope, and the right ID guide. The Larvae can be slightly more difficult to identify so their identification requires microscopic identification and a little more practice.  


This course will provide an introduction to mayflies, their natural history, how to identify the larvae to species level using microscopes and keys and how to record mayflies.


Please note that this course may involve using specimens that have been killed and preserved.  This course is intended for adults only so it is not suitable for children. 

Steve Brooks has been interested in freshwater insects since an early age. He studied freshwater ecology at the University of Newcastle upon Tyne and freshwater insect taxonomy during a 38-year career at the Natural History Museum (London). He has since retired but continues to take an active interest in all things freshwater. He is particularly keen to encourage amateur enthusiasts to become involved recording and monitoring freshwater insects, especially through engagement in the riverfly monitoring initiative to assess river water quality. Currently Steve is chair of the Riverfly Partnership, sits on the Conservation Committee of the British Dragonfly Society and is a Scientific Associate at the Natural History Museum. 


This course is heavily subsidised by the FSC BioLinks Project (funded by the Heritage Fund).


Booking Options:

  • £5.00 to attend the course.
  • £21.00 if you wish to attend and purchase a copy of the FSC Pictorial Guide to British Emphemeroptera (Mayflies), for any attendees who wish to take their interest further after the course. 


Op 129-ephemeroptera _2019 (1)

Further Information

Course Brochure

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Since the course starts within sixty days, we would ask you to pay the full amount.

Course Fee : £5

Course Fee + Pictorial Guide : £21

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