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Jacobsoniidae Temporal range: latest Albian - Present ~100–0 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Sarothrias sinicus in various views, scale bar = 0.5 mm
Saphophagus minutus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Superfamily:	Staphylinoidea
Family:	Jacobsoniidae Heller, 1926
Synonyms
Sarothriidae Crowson, 1955 Derolathriinae Sen Gupta, 1979

Jacobsoniidae are a family of tiny beetles belonging to Staphylinoidea. The larvae and adults live under bark, in plant litter, fungi, bat guano and rotten wood. There are around 28 described species in three genera:

Description

Members of this family have a small body size (0.7-2.1mm in length). Their bodies are narrow, and are four times as long as they are wide. They are often a yellowish-brown in color.

Ecology

Members of the group have primarily been found in leaf litter or in rotting wood, but some has have also been found in fungal fruting bodies or bat guano. The biology of members of this group is essentially unknown.

Taxonomy

Their taxonomic position has long been controversial, originally they were placed in Dermestoidea, before being considered Polyphaga incertae sedis. They were later placed in the Staphylinoidea, which is supported by characters of the wing venation as well as the morphology of the larval galea of the maxillae.

Distribution

Members of this family have been found in Alabama, Florida, South America, Central America, Polynesia, Africa, Australia, New Zealand, Europe and Asia.

Taxonomy

• Genus Sarothrias Grouvelle, 1918 (India, Southeast Asia, China, Oceania)
  • Sarothrias amabilis Ślipiński & Löbl, 1995
  • Sarothrias audax Ślipiński & Löbl, 1995
  • Sarothrias bournei Ślipiński, 1986
  • †Sarothrias cretaceus Cai et al., 2017 (Cenomanian, Burmese amber)
  • Sarothrias crowsoni Löbl & Burckhardt, 1988
  • Sarothrias dimerus (Heller, 1926)
  • Sarothrias eximius Grouvelle, 1918
  • Sarothrias fijianus Löbl & Burckhardt, 1988
  • Sarothrias hygrophilus Pal, 1998
  • Sarothrias indicus Dajoz, 1978
  • Sarothrias lawrencei Löbl & Burckhardt, 1988
  • Sarothrias morokanus Poggi, 1991
  • Sarothrias pacificus Ślipiński & Löbl, 1995
  • Sarothrias papuanus Ślipiński, 1986
  • Sarothrias sinicus Bi & Chen, 2015
  • Sarothrias songi Yin & Bi, 2018
• Genus Saphophagus Sharp, 1886 (New Zealand)
  • Saphophagus minutus Sharp, 1886
• Genus Derolathrus Sharp, 1908 (Oceania, Macaronesia, North America, Mauritius, Indian subcontinent)
  • †Derolathrus abyssus Yamamoto & Parker, 2017 (Cenomanian, Burmese amber)
  • Derolathrus anophthalmus (Franz, 1969)
  • Derolathrus atomus Sharp, 1908
  • Derolathrus cavernicolus Peck, 2010
  • †Derolathrus capdoliensis Tihelka et al., 2022 (Cenomanian, Charentese amber)
  • Derolathrus ceylonicus (Sen Gupta, 1979)
  • †Derolathrus groehni Cai et al., 2016 (Eocene, Baltic amber)
  • Derolathrus insularis (Dajoz, 1973)
  • Derolathrus parvulus (Rücker, 1983)
  • Derolathrus sharpi Grouvelle, 1912
  • Derolathrus troglophilus (Sen Gupta, 1979)

References

1. Zhang, S. Q.; Che, L. H.; Li, Y.; Liang, D.; Pang, H.; Ślipiński, A.; Zhang, P. (2018). "Evolutionary history of Coleoptera revealed by extensive sampling of genes and species". Nature Communications. 9 (1): 205. Bibcode:2018NatCo...9..205Z. doi:10.1038/s41467-017-02644-4. PMC 5768713. PMID 29335414.
2. ^ Michael A. Ivie (2002). Ross H. Arnett & Michael Charles Thomas (ed.). American Beetles: Polyphaga: Scarabaeoidea through Curculionoidea. Volume 2 of American Beetles. CRC Press. ISBN 978-0-8493-0954-0.
3. ^ Háva, Jiří (2022). "World catalogue of the family Jacobsoniidae (Coleoptera: Staphylinoidea)" (PDF). {{cite journal}}: Cite journal requires |journal= (help)
4. ^ Tihelka, Erik; Peris, David; Cai, Chenyang; Perrichot, Vincent (20 January 2022). "A Jacobson's beetle from Cretaceous Charentese amber (Coleoptera: Jacobsoniidae)". Geodiversitas. 44 (3): 47–56. doi:10.5252/geodiversitas2022v44a3. S2CID 246297785.
5. Cai, Chenyang; Ślipiński, Adam; Leschen, Richard A. B.; Yin, Ziwei; Zhuo, De; Huang, Diying (2 May 2017). "The first Mesozoic Jacobson's beetle (Coleoptera: Jacobsoniidae) in Cretaceous Burmese amber and biogeographical stasis". Journal of Systematic Palaeontology. 16 (7): 543–550. doi:10.1080/14772019.2017.1314388. S2CID 91087174.
6. Yamamoto, Shûhei; Takahashi, Yui; Parker, Joseph (May 2017). "Evolutionary stasis in enigmatic jacobsoniid beetles". Gondwana Research. 45: 275–281. Bibcode:2017GondR..45..275Y. doi:10.1016/j.gr.2016.12.008.
7. Cai, Chenyang; Leschen, Richard A. B.; Liu, Ye; Huang, Diying (28 March 2016). "First fossil jacobsoniid beetle (Coleoptera): Derolathrus groehni n. sp. from Eocene Baltic amber". Journal of Paleontology. 89 (5): 762–767. doi:10.1017/jpa.2015.65. S2CID 131477117.

External links

• Jacobsoniidae at Fauna Europaea

• v
• t
• e

• Staphylinoidea
• Beetle families
• Taxa named by Karl Borromaeus Maria Josef Heller
• Staphylinoidea stubs