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Photos of insects and people from the 2024 BugGuide gathering in Idaho July 24-27

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Species Cercyon ustulatus

Cercyon - Cercyon ustulatus Cercyon - Cercyon ustulatus Cercyon - Cercyon ustulatus Cercyon ustulatus? - Cercyon ustulatus Cercyon ustulatus? - Cercyon ustulatus Cercyon ustulatus Cercyon - Cercyon ustulatus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Staphyliniformia)
Superfamily Hydrophiloidea
Family Hydrophilidae (Water Scavenger Beetles)
Subfamily Sphaeridiinae
Tribe Megasternini
Genus Cercyon
No Taxon (Subgenus Dicyrtocercyon)
Species ustulatus (Cercyon ustulatus)
Explanation of Names
Cercyon ustulatus (Preyssler 1790)
Size
2.6‒3.2 mm
Identification
See Ryndevich 2008 for a diagram showing the separate convexities of the pronotum and elytra. (At ResearchGate).
Range
native to the Palaearctic, adventive in our area (east coast of NA)(1); now in BC, too (BG data)
Works Cited
1.Review of the Family Hydrophilidae of Canada and Alaska
Ales Smetana. 1988. Entomological Society of Canada.