Steven Falk (@stevenfalk1) 's Twitter Profile
Steven Falk

@stevenfalk1

Naturalist with passion for invertebrates, trees, habitats etc. Author of #BestBeeBook. Consultant keen to help you help our pollinators. Cyclist!

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linkhttp://www.stevenfalk.co.uk calendar_today19-05-2011 13:56:39

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Steven Falk
@stevenfalk1

2 months ago

Bob Chapman Dipterists Forum E. crassipennis is incredibly variable (like Phasia heliptera) - some Jersey ones featured here. The Central European key suggests crassipennis can have a dark abdomen but not the second species, E. oblonga.

<a href="/bobservablelife/">Bob Chapman</a> <a href="/DipteristsForum/">Dipterists Forum</a> E. crassipennis is incredibly variable (like Phasia heliptera) - some Jersey ones featured here. The Central European key suggests crassipennis can have a dark abdomen but not the second species, E. oblonga.