Glischrochilus quadrisignatus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Infraorder: Cucujiformia
Family: Nitidulidae
Genus: Glischrochilus
Species:
G. quadrisignatus
Binomial name
Glischrochilus quadrisignatus
(Say, 1835)
Synonyms[1]
  • Glischrochilus canadensis Brown, 1932
  • Glischrochilus sexpustulatus (Reitter, 1873)
  • Glischrochilus similis (Melsheimer, 1846)

Glischrochilus quadrisignatus, known generally as four-spotted sap beetle, is a species of sap-feeding beetle in the family Nitidulidae. Other common names include the beer bug and picnic beetle.[1][2][3][4][5][6] It is found in North America.[1]

Four-spotted sap beetle, Glischrochilus quadrisignatus

Four-spotted sap beetles (and other sap beetles) feed on fruits and vegetables that are either damaged, overripe, or decomposing. At times they can also feed on intact fruits and vegetables after first being attracted to and feeding on the damaged or decomposing fruits and vegetables. They often leave deep holes in fruits and vegetables. These look similar to holes made by slugs.[6]

They recommend sanitation as the best method for managing sap beetles in a garden. They also say that pesticides are not very effective and they recommend against using them to manage sap beetles.[6]

References

  1. 1 2 3 "Glischrochilus quadrisignatus Report". Integrated Taxonomic Information System. Retrieved 2018-03-31.
  2. "Glischrochilus quadrisignatus species details". Catalogue of Life. Retrieved 2018-03-31.
  3. "Glischrochilus quadrisignatus". GBIF. Retrieved 2018-03-31.
  4. "Glischrochilus quadrisignatus Species Information". BugGuide.net. Retrieved 2018-03-31.
  5. "Glischrochilus quadrisignatus Overview". Encyclopedia of Life. Retrieved 2018-03-31.
  6. 1 2 3 "Sap beetles in home gardens". University of Minnesota Extension. Retrieved 2023-07-09.

Further reading


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