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Species Ischyrus quadripunctatus - Four-Spotted Fungus Beetle

Pale Form - Ischyrus quadripunctatus Erotylidae - Ischyrus quadripunctatus Four-Spotted Fungus Beetle - Ischyrus quadripunctatus Four-spotted fungus beetle - Ischyrus quadripunctatus Ischyrus quadripunctatus - Four-Spotted Fungus Beetle - Ischyrus quadripunctatus Beetle with 4 spots - Ischyrus quadripunctatus Four-spotted Fungus Beetle? - Ischyrus quadripunctatus Coleoptera - Ischyrus quadripunctatus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Cucujoidea (Sap, Bark and Fungus Beetles)
No Taxon (Erotylid series)
Family Erotylidae (Pleasing Fungus Beetles)
Subfamily Erotylinae (Pleasing Fungus Beetles)
Tribe Tritomini
Genus Ischyrus
Species quadripunctatus (Four-Spotted Fungus Beetle)
Pronunciation
is-KAI-rus
Synonyms and other taxonomic changes
Ischyrus quadripunctatus (Olivier)
Orig. Comb: Erotylus quadripunctatus Olivier 1791
Explanation of Names
quadripunctatus - four-spotted
Numbers
4 Nearctic spp.
Size
7-8 mm
Identification

Four black pronotal spots diagnostic.
Range
AZ-FL-NY-IA / MB-PQ (BG data)
Habitat
under rubbish in the winter and on fungi in the summer. (1)
Season
Feb-Sept (BG data)
Food
Primary food is fungi.
Remarks
Typically found feeding in reasonably large groups.
Pattern is likely aposematic. These beetles were seen to be ignored by an insectivorous Five-lined Skink, Eumeces fasciatus, in Orange County, NC--the beetles even brushed against the basking skink while traversing a log! (Personal observation, P. Coin, 5/21/10.)
Print References
(2)
(3)
Works Cited
1.A Manual of Common Beetles of Eastern North America
Dillon, Elizabeth S., and Dillon, Lawrence. 1961. Row, Peterson, and Company.
2.Peterson Field Guides: Beetles
Richard E. White. 1983. Houghton Mifflin Company.
3.How to Know the Beetles
Ross H. Arnett, N. M. Downie, H. E. Jaques. 1980. Wm. C. Brown Publishers.