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Dytiscus dauricus
Photo#1599499
Copyright © 2018
J. Burke Korol
Dytiscidae in Yellowknife -
Dytiscus dauricus
Kam Lake, Yellowknfie, Northwest Territories, Canada
August 20, 2018
Size: 34 mm long
Images of this individual:
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Contributed by
J. Burke Korol
on 5 October, 2018 - 11:35am
Last updated 24 January, 2019 - 4:35am
Comments
Moved
Moved from
Dytiscus
.
…
John F. Carr
, 24 January, 2019 - 4:35am
Dytiscus dauricus
Only 3 female species, with sulcate elytra and metacoxal process with sharply pointed apex:
D. alaskanus
,
D. circumcinctus
and
D. dauricus
.
Now,
D. alaskanus
is smaller than 30 mm.
D. circumcinctus
has inner margin of eyes yellow, while
D. dauricus
has black along margin of eyes (which seems to be the case here). The measurement also fits the range of
D. dauricus
(30-40 mm) and not so much
D. circumcinctus
's range (27-34 mm)
…
Claude Tessier
, 23 January, 2019 - 10:09pm
Moved
Moved from
Beetles
.
…
John F. Carr
, 8 December, 2018 - 6:52pm