Mycetophagidae

Leach, 1815

Hairy Fungus Beetles

Genus Guides

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Mycetophagidae, commonly known as hairy fungus beetles, is a of small beetles in the superfamily Tenebrionoidea. The family comprises approximately 200 across 18 worldwide. Species range from 1.0 to 6.5 mm in length. Both larvae and inhabit decaying leaf litter, fungi, and subcortical environments, with most species feeding on fungi.

Mycetophagus fulvicollis by (c) Michael Knapp, some rights reserved (CC BY), uploaded by Michael Knapp. Used under a CC-BY license.Berginus by (c) Paul Cook, some rights reserved (CC BY), uploaded by Paul Cook. Used under a CC-BY license.Berginus by (c) Paul Cook, some rights reserved (CC BY), uploaded by Paul Cook. Used under a CC-BY license.

Pronunciation

How to pronounce Mycetophagidae: /ˌmaɪsɛtoʊˈfædʒɪdiː/

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Images

Habitat

Decaying leaf litter, fungi, and under bark. Some occur in stored grain facilities where they feed on fungal growth.

Distribution

Worldwide distribution. Recorded from Peru ( Litargus and Thrimolus), northern Iran (Mycetophagus quadripustulatus on oyster mushrooms), and North America including Kansas oyster mushroom .

Diet

Most feed on fungi. Typhaea stercorea feeds specifically on Aspergillus, Eurotium, and Penicillium growing on stored grains. Mycetophagus quadripustulatus has been observed grazing on oyster mushrooms (Pleurotus).

Host Associations

Behavior

Typhaea stercorea mycotoxigenic fungi throughout storage structures. Some complete their entire lifecycle on fungal . and larvae are found together in fungal substrates.

Ecological Role

Secondary post-harvest pest of stored grains (Typhaea stercorea). Contributes to degradation of fungal organic matter. Gut bacterial (Pseudomonas, Enterobacteriaceae, Enterobacter) may aid in nutrition uptake, immune defenses, and protection. Serves as for specialized mites.

Human Relevance

Typhaea stercorea is a documented pest of stored grains, feeding on fungi and vectoring mycotoxigenic fungi that produce toxins hazardous to humans and livestock. Some are found in mushroom settings.

Similar Taxa

  • ErotylidaeBoth are fungus-associated ; Erotylidae (pleasing fungus beetles) often occur alongside Mycetophagidae on mushrooms but typically have more vivid coloration and different body proportions
  • EndomychidaeAnother fungus-feeding in same ; Endomychidae (handsome fungus beetles) differ in antennal structure and body shape
  • CryptophagidaeSilken fungus beetles share preferences but differ in and silk-producing

More Details

Gut Microbiome

Typhaea stercorea harbors distinct bacterial across life stages. Larvae are enriched with Pseudomonas (47.67%), while are dominated by an unspecified Enterobacteriaceae (90.97%). Field-collected individuals show greater microbial variability than laboratory-reared .

Parasitoid Associates

The mite Aethiophenax mycetophagi (Acari: Acarophenacidae) is an of Mycetophagus quadripustulatus, inhabiting the space beneath the 's .

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Sources and further reading