Ontogenetic instars of Hermannia longisetosa Subías & Shtanchaeva, 2013, with remarks on juveniles of Hermanniidae (Acari: Oribatida) Author Bayartogtokh, Badamdorj 0000-0002-6370-5759 Department of Biology, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar, Mongolia. bayartogtokh @ num. edu. mn; https: // orcid. org / 0000 - 0002 - 6370 - 5759 bayartogtokh@num.edu.mn Author Ermilov, Sergey G. 0000-0002-0913-131X Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, Tyumen, Russia. ermilovacari @ yandex. ru; https: // orcid. org / 0000 - 0002 - 0913 - 131 X ermilovacari@yandex.ru Author Shtanchaeva, Umukusum Ya. Complutense University, Madrid, Spain. Author Subías, Luis S. Complutense University, Madrid, Spain. text Zootaxa 2021 2021-12-30 5086 1 49 68 journal article 2824 10.11646/zootaxa.5086.1.6 7053faf5-1d44-4c80-bb83-a072a966aeb6 1175-5326 5814477 2170BF6C-B3D3-473C-A123-B8D3B6EAEC94 Hermannia longisetosa Subías & Shtanchaeva, 2013 Diagnosis Adult . Body size: 498–610 × 249–320. Integument microporose. Rostral and lamellar setae narrowly phylliform, interlamellar seta broadly phylliform; ro shortest, le longest. Bothridial seta long, bacilliform, with weakly developed clavate head. Dorsal notogastral setae very long, posterior setae p 1 – p 3 of medium length, all setae narrowly phylliform; setae d 1 – d 3 inserted in transverse row. Adoral setae or 1 and or 3 bifurcate, or 2 rod-like. Epimeral setal formula: 3-1-3-5; all setae setiform. Two concavities located before genital aperture. Two pairs of narrowly phylliform aggenital and nine pairs of setiform genital setae present. Adanal seta narrowly phylliform. Leg tarsi I-IV with setae it’ and it” . Juvenile instars . Prodorsum partially foveolate-reticulate; gastronotum and basal part of prodorsum wrinkled. Rostral, lamellar and interlamellar setae narrowly phylliform; ro shortest. Bothridial seta long, bacilliform, with unclearly developed clavate head. Larva with 13 pairs ( h 3 vestigial), nymphs with 161 pairs of narrowly phylliform gastronotic setae. Line of dehiscence represented by transverse line (longitudinal median line nor observed). Larva with two pairs, nymphs with three pairs of adoral setae; or 1 and or 3 bifurcate, or 2 rod-like. Second pair of subcapitular setae m 2 added in protonymph. Setal formulas for epimeres: 3-1-3- 3 in deutonymph, 3-1- 3- 4 in tritonymph. Genital setal formula in nymphs: 1-4-6. Genital, aggenital and adanal setae narrowly phylliform; anal seta setiform. Solenidion ω 2 on leg tarsus I added in tritonymph.