Pisenus humeralis
(Kirby, 1837)
Pisenus humeralis is a of polypore fungus beetle in the Tetratomidae, originally described as Cryptophagus humeralis by Kirby in 1837. It is one of approximately 20 described species in the Pisenus, which are specialized associates of polypore fungi. The species is documented from eastern North America, with records from Canada (New Brunswick, Ontario, Québec) and the United States.
Pronunciation
How to pronounce Pisenus humeralis: /paɪˈsiːnəs hjuːməˈreɪlɪs/
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Habitat
Associated with polypore fungi (Basidiomycota), which grow on dead or decaying wood in forested environments.
Distribution
Eastern North America; confirmed records from New Brunswick, Ontario, and Québec in Canada, and the United States.
Host Associations
- polypore fungi - specialized associatelarval and development occurs in association with polypore fruiting bodies
Ecological Role
Decomposer; contributes to nutrient cycling through association with wood-decaying polypore fungi.
Similar Taxa
- other Pisenus speciesapproximately 20 share similar and ; precise identification requires examination of genitalia and other fine structural characters
More Details
Taxonomic history
Originally described in the Cryptophagus ( Cryptophagidae) before transfer to Pisenus upon establishment of Tetratomidae as a distinct family. The basionym Cryptophagus humeralis Kirby, 1837 reflects this earlier classification.
Family characteristics
Tetratomidae (polypore fungus beetles) are a small of mycophagous beetles closely related to Melandryidae and Mordellidae. Members are obligate associates of polypore fungi, with larvae developing within fungal fruiting bodies.