Genus
Pseudoscorpiones de Geer 1778
Order
Iocheirata Harvey 1992
Suborder
Neobisioidea Chamberlin 1930
Superfamily
Syarinidae Chamberlin, 1930
Family
Chitrellinae Beier 1932
Subfamily
Obisium caecum Simon, 1883, by original designation.
Microcreagrella Beier, 1961a: 70-72; Beier, 1963b: 224; Harvey, 1991a: 426.
Microcreagrella caeca (Simon, 1883)
Species
Microcreagrella caeca madeirensis Beier, 1963
Subspecies
Microcreagrella caeca caeca (Simon, 1883)
Microcreagrella caeca (Simon, 1883)
Species