Summer Azure ( Celastrina neglecta )
 
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French common name: Azur estival
 

 
 Transcanada trail (west of) Port Colborne, ON 
 2011/07/19 
 
Summer Azure ( Celastrina neglecta )
Female - Friendship trail    Port Colborne, ON 
2015/06/11 
 
 
Summer Azure ( Celastrina neglecta )
Male - Point Pelee NP, ON  2014/09/19


 
Summer Azure ( Celastrina neglecta )
Point Pelee NP, ON  2013/06/21
 
  
This species can be difficult to distinguish from the other closely related Celastrina species  based solely on appearance ( especially in photographs ).  It is likely to be the more common species found in Southern Ontario later in summer, though there is supposed to be a spring flight of the species ( which looks more like the Northern Spring Azure ).

There is still uncertainty about the taxonomy of the Celastrina species in Ontario and the rest of Eastern Canada, and experts are not in agreement on where species boundaries should be drawn.  Some more recent research is available here: Ontario Insects page on Azures


To see where this butterfly has been reported, visit:  The Ontario Butterfly Atlas Online

For further info on this species, refer to the Butterflies of Canada  ( en français )