Mycetophagus punctatus

Say, 1826

hairy fungus beetle, punctured hairy fungus beetle

Mycetophagus punctatus is a in the Mycetophagidae, commonly known as the hairy fungus beetle. It occurs throughout North America and is frequently found in human dwellings where damp conditions and decaying organic matter are present. The is not considered a pest as it does not cause damage to structures or stored products.

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Pronunciation

How to pronounce Mycetophagus punctatus: /maɪˌsɛtəˈfæɡəs pʌŋkˈteɪtəs/

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Identification

are 4.0–5.5 mm in body length with black bearing red-yellow markings. are red-brown, darkening to black at the tips. The body is covered with short hairs. The combination of punctate elytral pattern, hairy body, and antennal coloration distinguishes this from other Mycetophagus.

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Habitat

Moist environments with decaying organic matter, including cellars, houses around bathtubs or sinks, and areas with damp cereals, herbs, spices, cheese, fruit preserves, and fibers including carpet.

Distribution

North America, including Canada (Manitoba, New Brunswick) and the United States.

Seasonality

Proliferates during late summer to early fall.

Diet

Feeds on fungi growing on decaying plant material and damp organic substrates including cereals, herbs, spices, cheese, and fruit preserves.

Behavior

Attracted to light sources. Does not bite humans or spread .

Ecological Role

Decomposer; feeds on fungi associated with decaying organic matter.

Human Relevance

Occasionally found in households where damp conditions exist. Does not cause damage to structures or belongings. use is known to limit their presence.

Similar Taxa

  • Other Mycetophagus speciesMay share general appearance and preferences; distinguished by specific elytral color patterns and punctation
  • Other MycetophagidaeSimilar size and fungus-feeding ; identification requires examination of antennal structure and body punctation

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Sources and further reading