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#proterosoma — Public Fediverse posts

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  1. Stefan F. Wirth @[email protected] ·

    A striking #character of adult #mites in #Histiostomatidae (#Astigmata) is a highly #sclerotized area on the upper surface of #proterosoma. Its #latticelike #structure forms a #taxonomically relevant #symmetrical #pattern of windows, for which I introduced a #nomenclature in my PhD thesis. This area is a site of #muscleorigins (see #SEM section through a bigger specimen of #Acaridae).
    ©#StefanFWirth 2026

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    #pics
    ©S.F. Wirth edit 2026

    #character #mites #histiostomatidae #astigmata #sclerotized #proterosoma
  2. Stefan F. Wirth @[email protected] ·

    Overview of the topic of #muscleattachment and origin points and #muscle #morphology in #Astigmata #mites (#Acariformes). Figs. 1-3 show a view from the #proterosoma towards the #gnathosoma of a mite of the #Acaridae. Fig. 4 shows a female of a #Histiostomatidae mite in the area of #​​legs 1 and 2 with the associated muscles and muscle attachment points. The already older preparations were critically - point dried before #SEM observations. #acarology #biology
    © #StefanFWirth Berlin 2025

    #muscleattachment #muscle #morphology #astigmata #mites #acariformes