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Length: 13.5-16.5mm
| Egg | Nymph | Adult | 
| August - April | March - July | July - April (Earliest: 4.3)  | 
| Biotopes: | 
 
Ponds  | |||
| Possible Food: |  
 
Corixidae  | 
 
 
Gerridae  | 
 
Ephemeroptera  | 
 
Dytiscidae  | 
 
Amphibia  | ||||
| Predators: | 
 
Dytiscus  | 
Nature Spot: Notonecta maculata
Pictures © 2003, 2007 J.K. Lindsey
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