Phylogenetic analysis, complete mitochondrial genome, and redescription of the East Asian genus Aphaenomurus (Collembola: Tomoceridae)

[Display omitted] •Phylogenetic placement of Ahaenomurus interpositus Yosii is investigated.•Complete mitochondrial genome of A. interpositus is reported.•Redescription of A. interpositus is provided with illustraions of diagnostic characters. The genus Aphaenomurus Yosii, 1956 includes one species and one subspecies, with a limited distribution in Korea and Japan. The phylogenetic relationships between Aphaenomurus and other genera of the subfamily Tomocerinae have not been resolved. In Korea, Aphaenomurus is generally observed in caves. In this study, specimens collected from the twilight zones of caves were used for an expanded phylogenetic analysis, complete mitochondrial genome analysis, and morphological redescription of Aphaenomurus interpositus Yosii, 1956. Maximum likelihood, Bayesian, and parsimony analyses based on five regions (COI, 16S rDNA, 18S rDNA, 28S rDNA D1–2, and 28S rDNA D7–10) indicated that A. interpositus is a sister group to the genus Plutomurus Yosii, 1956 with strong support.