Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Donate
Giving Tuesday, November 30. Please consider a gift to BugGuide!

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Previous events


TaxonomyBrowseInfoImagesLinksBooksData
Photo#14672
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
Ventral surface showing the lovely hydrodynamic shape of the body. Here are the differences between Cybister and Dytiscus visible on the underside, according to Dillon (1) and Ciegler. (2)
  • Lower hind tibial spur much wider than upper in Cybister, spurs similar in size in Dytiscus. This can just be seen in this photo, I think.
  • Metatibia of Cybister is short and broad, that of Dytiscus is longer.
  • Prosternum of Cybister is greenish, that of Dytiscus is reddish.
  • Structure of adhesive pads on male protarsi differs between the two genera.

Images of this individual: tag all
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