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

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

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

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Genus Ilybiosoma

Black Water Beetle? - Ilybiosoma Black Water Beetle? - Ilybiosoma Ilybiosoma seriatum - female Agabus 02 - Ilybiosoma seriatum - male Dysticidae - Agabinus? - Ilybiosoma Predaceous Diving Beetle - Ilybiosoma seriatum Predaceous Diving Beetle - Ilybiosoma seriatum Dytiscidae - Ilybiosoma
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Dytiscidae (Predaceous Diving Beetles)
Subfamily Agabinae
Genus Ilybiosoma
Synonyms and other taxonomic changes
Includes the former Agabus seriatus group (1). The following Nearctic Agabus species are now classified under Ilybiosoma: A. perplexus, A. ilybiiformis, A. pandurus, A. brevicollis, A. regularis, A. lugens, A. roguus, A. minnesotensis, and A. seriatus (as I. seriatum). See Nilsson (2001) for more details.
With the exception of I. seriatum, it is generally difficult to separate the species based on external characters alone- dissection and examination of male genitalia are usually needed.
Mainly western with center of diversity in the southwest (1); only I. seriatum is transcontinental and thus the only one found in the east (1).
Lotic, in streams and springs (1)
Print References
Nilsson, Anders N. 2001. World Catalogue of Insects, volume 3: Dytiscidae (Coleoptera) Apollo Books, 395 pp.