Megalopsidiinae

Megalopsidiinae
	Megalopinus caelatus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Staphyliniformia
Superfamily:	Staphylinoidea
Family:	Staphylinidae
Subfamily:	Megalopsidiinae; Leng, 1920

The Megalopsidiinae are a monogeneric subfamily of the Staphylinidae, which includes only the genus Megalopinus.^[1] They have large eyes, antennae with distinct di- or trisegmented clubs. The tarsal formula is 5-5-5. They have unique elongated processes at the anterior margin of the labrum. They are found in decaying trees and fungus-infested logs.^[2] Four species are found in North America: Megalopinus caelatus (Gravenhorst, 1802), Megalopinus punctatus (Erichson, 1840), Megalopinus rufipes (LeConte, 1863) and Megalopinus lingafelteri Mainda, 2023.

So far, 333 species are known from the entire New World.^[3] From the Orientalis 74 (+ one fossil, Megalopinus extinctus Yamamoto & Solodovnikov, 2016, described from Burmese amber^[4]) species are known.^[5]

Megalopinus caelatus
M. caelatus

References

^ Newton, A. F., Jr., M. K. Thayer, J. S. Ashe, and D. S. Chandler. 2001. 22. Staphylinidae Latreille, 1802. p. 272–418. In: R. H. Arnett, Jr., and M. C. Thomas (eds.). American beetles, Volume 1. CRC Press; Boca Raton, FL. ix + 443 p.
^ Leschen & Newton (2003). "Larval description, adult feeding behavior, and phylogenetic placement of Megalopinus (Coleoptera: Staphylinidae)". The Coleopterists Bulletin. 57 (4): 469–493. doi:10.1649/586. S2CID 85394537.
^ Puthz, Volker. "Über die neuweltlichen Megalopinus-Arten (Coleoptera, Staphylinidae)" (PDF). Linzer Biologische Beiträge. 44 (1): 613–834.
^ "Fossilworks: Megalopinus extinctus". fossilworks.org. Retrieved 7 January 2019.
^ Mainda, Tobias (2022). "Contribution to the knowledge of the genus Megalopinus Eichelbaum, 1915 in the Oriental region (Coleoptera: Staphylinidae)" (PDF). Tropical Journal of Coleopterology. 3 (1): 45–54. doi:10.53716/jtc.3.1.7.2022.

External links

Megalopsidiinae at Bugguide.net. [1]

[1] Newton, A. F., Jr., M. K. Thayer, J. S. Ashe, and D. S. Chandler. 2001. 22. Staphylinidae Latreille, 1802. p. 272–418. In: R. H. Arnett, Jr., and M. C. Thomas (eds.). American beetles, Volume 1. CRC Press; Boca Raton, FL. ix + 443 p.

[2] Leschen & Newton (2003). "Larval description, adult feeding behavior, and phylogenetic placement of Megalopinus (Coleoptera: Staphylinidae)". The Coleopterists Bulletin. 57 (4): 469–493. doi:10.1649/586. S2CID 85394537.

[3] Puthz, Volker. "Über die neuweltlichen Megalopinus-Arten (Coleoptera, Staphylinidae)" (PDF). Linzer Biologische Beiträge. 44 (1): 613–834.

[4] "Fossilworks: Megalopinus extinctus". fossilworks.org. Retrieved 7 January 2019.

[5] Mainda, Tobias (2022). "Contribution to the knowledge of the genus Megalopinus Eichelbaum, 1915 in the Oriental region (Coleoptera: Staphylinidae)" (PDF). Tropical Journal of Coleopterology. 3 (1): 45–54. doi:10.53716/jtc.3.1.7.2022.

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