Blapsium

Blapsium; Temporal range: Middle Jurassic, Bathonian PreꞒ Ꞓ O S D C P T J K Pg N ↓
	John O. Westwood's figure of Blapsium egertoni
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Family:	Ommatidae
Genus:	†Blapsium; Westwood, 1854
Species:	†B. egertoni
Binomial name
	†Blapsium egertoni; Westwood, 1854
Synonyms
	Blapsidium Phillips, 1871;

Blapsium is an extinct genus of beetles from the Middle Jurassic of England.^[1]^[2] The only described species is B. egertoni,^[3] which is known from a single specimen found by the Earl of Enniskillen at the Taynton Limestone Formation, also known as the Stonesfield Slate.^[4] The specimen is deposited in the Natural History Museum, London. It is incompletely preserved, lacking a head, pronotum and legs. It has a broad, convex body. It has a very short metathorax, which suggests that it was possibly apterous.^[1]^[5]

In his original description of the genus, John O. Westwood compared Blapsium to the darkling beetles and ground beetles.^[3] Ponomarenko (2006) redescribed the holotype of B. egertoni and referred it to the tribe Notocupedini in the family Ommatidae (considered in the paper to be a subfamily of Cupedidae), which was followed by Kirejtshuk (2020).^[1]^[5]

References

^ ^a ^b ^c Ponomarenko, A. G. (2006). "On the Types of Mesozoic Archostematan Beetles (Insecta, Coleoptera, Archostemata) in the Natural History Museum, London". Paleontological Journal. 40 (1): 90–99. doi:10.1134/S0031030106010102.
^ Walker, Cyril Alexander; Ward, David (2002-01-01). Fossils. DK. p. 78. ISBN 9780789489845.
^ ^a ^b Westwood, J. O. (1854). "Contributions to fossil entomology". Quarterly Journal of the Geological Society of London. 10: 378–396.
^ United States Congressional Serial Set. U.S. Government Printing Office. 1892-01-01.
^ ^a ^b Kirejtshuk, Alexander G. (2020-02-17). "Taxonomic Review of Fossil Coleopterous Families (Insecta, Coleoptera). Suborder Archostemata: Superfamilies Coleopseoidea and Cupedoidea". Geosciences. 10 (2): 73. Bibcode:2020Geosc..10...73K. doi:10.3390/geosciences10020073. ISSN 2076-3263.

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[Ponomarenko2006-1] Ponomarenko, A. G. (2006). "On the Types of Mesozoic Archostematan Beetles (Insecta, Coleoptera, Archostemata) in the Natural History Museum, London". Paleontological Journal. 40 (1): 90–99. doi:10.1134/S0031030106010102.

[2] Walker, Cyril Alexander; Ward, David (2002-01-01). Fossils. DK. p. 78. ISBN 9780789489845.

[Westwood-3] Westwood, J. O. (1854). "Contributions to fossil entomology". Quarterly Journal of the Geological Society of London. 10: 378–396.

[4] United States Congressional Serial Set. U.S. Government Printing Office. 1892-01-01.

[Kirejtshuk2020-5] Kirejtshuk, Alexander G. (2020-02-17). "Taxonomic Review of Fossil Coleopterous Families (Insecta, Coleoptera). Suborder Archostemata: Superfamilies Coleopseoidea and Cupedoidea". Geosciences. 10 (2): 73. Bibcode:2020Geosc..10...73K. doi:10.3390/geosciences10020073. ISSN 2076-3263.

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