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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Adephaga » Predaceous Diving Beetles (Dytiscidae) » Copelatinae » Copelatus » Copelatus caelatipennis
Photo#288257
Copelatus caelatipennis princeps ? - Copelatus caelatipennis - female
Copyright © 2009 Bruce Getty

Copelatus caelatipennis princeps ? - Copelatus caelatipennis - Female
Middleburg, Clay County, Florida, USA
June 9, 2009
Size: 4.63mm avg (8)
Collected at light. Keyed via "Identification Manual for the Water Beetles of Florida -
Epler". Going with "princeps" because of the lighter transverse fascia at the base of
the elytra. The other possibility is C. glyphicus, but I don't do genitalia. Both of
these are females.

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Copelatus caelatipennis princeps ? - Copelatus caelatipennis - female Copelatus caelatipennis princeps - Copelatus caelatipennis - male
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Contributed by Bruce Getty on 14 June, 2009 - 2:23pm
Last updated 14 June, 2009 - 6:03pm

Agree with the id
other than the pale basal band, I also see longitudinal strioles on the pronotum, which is also a diagnostic character. I will leave out subspecies for now though...the 2 (princeps and angustatus) are both found in FL.
… Tim Loh, 14 June, 2009 - 6:01pm login or register to post comments

 
Copelatus
Thank you for the confirmation Tim. I also saw that angustatus
was in South Florida, and that the two may be separated by the
absence of strioles on the pronotal disc on C.c.angustatus.
… Bruce Getty, 14 June, 2009 - 8:51pm login or register to post comments

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