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 Major Groups | Insecta (insects) | Ephemeroptera (mayflies) | Caenidae

 
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2(1). 1st abdominal tergite with setae; gill covers usually with long setae dorsally (NOT referring to the fringe of setae), setae are visible on specimens greater than 1 mm long
Distribution: Australia wide
(part)  More ››› Tasmanocoenis  

 

 
Tasmanocoenis 

Tasmanocoenis 

1st tergite with setae

Tasmanocoenis 

gill covers with long setae

-1st abdominal tergite without setae; gill covers without long setae dorsally

Note: The setae on 1st abdominal tergite may not always be visible in Tasmanocoenis which has gill covers with setae.

 More ››› 3  

 

 
Irpracaenis  

1st tergite without setae

Irpacaenis  

gill covers without setae

Tasmanocoenis 

Tasmanocoenis
gill covers with setae