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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Adephaga » Predaceous Diving Beetles (Dytiscidae) » Agabinae » Agabini » Agabus » Agabus crassipes
Photo#365840
Carrhydrus crassipes Fall - Agabus crassipes - male
Copyright © 2010 Tim Loh

Carrhydrus crassipes Fall - Agabus crassipes - Male
Sibald Creek beaver dams, near Sibald Flats, Alberta, Canada
May 14, 1970
Size: 13.5 mm
Specimen curated at the U. of C. research collection
Collected by D. Larson
R.D. Kenner det. (2008)

A rare and unusual dytiscid; One of the few true Canadian insects (no records in Alaska and continental USA). Displays marked sexual dimorphism. Males are significantly larger than females, have clubbed antennae, and greatly enlarged pro and meso tibiae.

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Carrhydrus crassipes Fall - Agabus crassipes - male Carrhydrus crassipes Fall - Agabus crassipes - male Carrhydrus crassipes Fall - Agabus crassipes - male
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Contributed by Tim Loh on 20 January, 2010 - 8:04pm

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