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Date: | Sat, 4 Dec 2021 08:15:28 -0500 |
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recent writing
The fossil record of Mesostigmata is surprisingly sparse. Only nine fossil families from the lineages Gamasina and Uropodina (Mesostigmata: Monogynaspida) have been recorded. All recorded fossil mesostigmatans are from the Cenozoic period [from Palaeogene (Eocene, ca. 44–49 Ma) to Neogene (Miocene, ca. 16 Ma)]. Here, we illustrate and describe two deutonymphs from mid-Cretaceous Burmese amber.
Specimens were found in the amber piece along with a wasp (Hymenoptera: Scelionidae), flies (Diptera: Ceratopogonidae) and thrips (Thysanoptera: Adiheterothripidae). This record traces the Sejida back to the mid-Cretaceous (ca. 100 Ma) and represents not only the oldest valid record of Mesostigmata, but it is also one of the oldest examples of the entire Parasitiformes clade.
oharchi O. et al. (2021), Oldest determined record of a mesostigmatic mite (Acari: Mesostig- mata: Sejidae) in Cretaceous Burmese amber. Acarologia 61(3): 641-649. https://doi.org/10.24349/goj5-BZms
notes
Mesostigmata is an order of mites belonging to the Parasitiformes. They are by far the largest group of Parasitiformes, with over 8,000 species in 130 families. Mesostigmata includes parasitic as well as free-living and predatory forms. They can be recognized by the single pair of spiracles positioned laterally on the body. Amongst the best known species are Varroa destructor, an economically important parasite of honey bees, as well as the red mite (Dermanyssus gallinae) a parasite of poultry, most commonly chickens.
PLB
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