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Photo#342649
Dytiscus alaskanus - male

Dytiscus alaskanus - Male
West Campus Park, Calgary, Alberta, Canada
August 2, 2009
Size: 30 mm
From bottle trap; large males of this species are very similar to small males of D. dauricus- dissection of adeagus is usually best to reliably identify such individuals

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Dytiscus alaskanus - male Dytiscus alaskanus - male Dytiscus alaskanus - male