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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Staphyliniformia » Hydrophiloidea » Helophoridae » Helophorus » Helophorus (Helophorus) grandis (Helophorus grandis)
Photo#605699
H. grandis - Helophorus grandis
Copyright © 2012 okeller

H. grandis - Helophorus grandis
7 mi S of Harbor Beach, Huron County, Michigan, USA
April 9, 2011
Size: ~7 mm
I used (1) to key this specimen to Helophorus grandis. A factor for this species is its size. No other member of the genus reaches 7 mm according to Downie and Arnett. The next one would be H. oblongus which can reach up to 6.3 mm but is more piceous in color.

Does anyone have any experience with this genus?

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H. grandis - Helophorus grandis H. grandis - Helophorus grandis H. grandis - Helophorus grandis
Contributed by okeller on 5 January, 2012 - 7:39pm
Last updated 5 January, 2012 - 10:48pm

Moved
I agree with your conclusions assuming your size measurements are correct.
… Tim Loh, 5 January, 2012 - 10:48pm

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