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Genus Ilybiosoma

6026820 - Ilybiosoma Dytiscidae - Ilybiosoma Predacious Diving Beetle - Ilybiosoma seriatum Agabus 02 - Ilybiosoma seriatum - male Dytiscid - Ilybiosoma seriatum - female Dysticidae - Agabinus? - Ilybiosoma Predaceous Diving Beetle - Ilybiosoma seriatum Predaceous Diving Beetle - Ilybiosoma seriatum
Classification
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.
Identification
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.
Range
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).
Habitat
Lotic, in streams and springs (1)
Print References
Nilsson, Anders N. 2001. World Catalogue of Insects, volume 3: Dytiscidae (Coleoptera) Apollo Books, 395 pp.