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 Major Groups | Insecta (insects) | Coleoptera (beetles)

 
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1. Animal without wings or elytra

Larvae  

Key from Lawrence 1995, Watts 2002

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Dyttiscidae 

no wings or elytra

Elmidae 

no wings or elytra

Hydrophilidae 

no wings or elytra

Psephenidae 

no wings or elytra

-Animal has wings and hardened elytra

Adults

Key from Lawrence 1995

  More ››› 26  

 

 
Dytiscidae 

with wings & hardened elytra

Elmidae 

with wings & hardened elytra

Hydrophilidae 

with wings & hardened elytra

Psephenidae 

with wings & hardened elytra