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Photo#14674
Fringed Diving Beetle - Cybister fimbriolatus - male

Fringed Diving Beetle - Cybister fimbriolatus - Male
Hwy 55 and Sedwick, Durham County, North Carolina, USA
April 4, 2005
Size: 32 mm
Detail showing spurs of metatarsi. Cybister has lower/outer spur larger than inner. (1) (2) The lower/outer spur is projecting out to the right in this photo, I believe.

There are supposed to be four or five ridges in the hollows behind the metacoxae of male Cybister, used for stridulation (1). This region is shown here, and I guess I see a couple of ridges.

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Fringed Diving Beetle - Cybister fimbriolatus - male Fringed Diving Beetle - Cybister fimbriolatus - male Fringed Diving Beetle - Cybister fimbriolatus - male Fringed Diving Beetle - Cybister fimbriolatus - male Fringed Diving Beetle - Cybister fimbriolatus - male