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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Beetles (Coleoptera) » Ground and Water Beetles (Adephaga) » Predaceous Diving Beetles (Dytiscidae) » Dysticinae (Dytiscinae) » Acilius » Acilius semisulcatus
Photo#84869
Predacious Diving Beetle - Acilius semisulcatus
Copyright © 2006 tom murray

Predacious Diving Beetle - Acilius semisulcatus
Shirley, Middlesex County, Massachusetts, USA
October 26, 2006
Size: 15mm
Found in a vernal pool.
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Contributed by tom murray on 26 October, 2006 - 8:49pm
Last updated 12 April, 2009 - 7:59pm

Moved
Moved from Acilius mediatus.
… Tim Loh, 12 April, 2009 - 7:59pm login or register to post comments

Not A. mediatus
Too large and given it's a female, the elytra are sulcate (A. mediatus females are non-sulcate); it's most likely A. semisulcatus.
… Tim Loh, 12 April, 2009 - 7:58pm login or register to post comments

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