Species of Mesaphorura are very small (typically 0.7 mm in length) soil-dwelling Collembola. Until relatively recently, most Mesaphorura have been recorded under the name Mesaphorura krausbaueri but following work by Rusek and others, it is clear that there are several species 'hiding' under this name. Bagnall published several records for Mesaphorura iowensis and there are numerous of his slides in the NHML collection bearing this name. However, all of these specimens are referable to modern descriptions by Rusek, Fjellberg and others of Mesaphorura krausbaueri, Mesaphorura macrochaeta or Mesaphorura tenuisensillata. Thus Mesaphorura iowensis should be removed from the UK & Eire checklist.

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