A new species of Formicomotes Sevastianov (Acari: Heterostigmata: Dolichocybidae) associated with termites (Isoptera: Termitidae) from Brazil, with redescription of Formicomotes octipes Sevastianov, 1980 Author Khaustov, Alexander A. Author Frolov, Andrey V. text Zootaxa 2018 2018-02-21 4382 2 393 400 journal article 30699 10.11646/zootaxa.4382.2.10 bc8e7b7b-d323-4aa7-9300-52c2b6021b82 1175-5326 1182002 57B10067-790D-4F7F-96F6-4D51C28158D0 Formicomotes octipes Sevastianov, 1980 ( Figs 4 , 5 ) Formicomotes octipes Sevastianov, 1980 , p. 1454, Figs 1 –7. Description . Phoretic female ( Figs 4 , 5 ). Body weakly sclerotized, round. Length of idiosoma 120–125, maximum width 105–110. Gnathosoma ( Figs 1 , 2 ). Length of gnathosoma 21–23, width 25–27. Cheliceral stylets large, thick, directed anteriorly. Seta dGe distinctly longer than seta m and slightly longer than length of gnathosoma, pointed, smooth. Subcapitular seta m 12–13 smooth, pointed. Both palpal solenidia weakly clavate; outer solenidion striated, slightly longer and thicker than non-striated inner one. Idiosomal dorsum ( Fig 4A ). All dorsal shields smooth. All dorsal setae smooth. Setae c 1 and f moderately blunt-ended, other dorsal setae pointed. Posterior margins of dorsal shields non-dentate. Cupules ia and im large, round. Lengths of dorsal setae: v 1 17–22 , v 2 24–25 , sc 2 24–25 , c 1 11–12 , c 2 12–14 , d 14–15, e 12–14, f 6–7, h 1 vestigial, h 2 82–87. Distances between setae: v 1 –v 1 23–25 , v 2 –v 2 27–30 , sc 2 –sc 2 71–74, c 1– c 1 34–39, d–d 82–85, e–e 36–37, f–f 22–23, e–f 7, h 1– h 1 7–8, h 2– h 2 15–16. Idiosomal venter ( Fig 4B ). All ventral plates smooth. All ventral setae smooth, needle-like. Prosternal apodeme absent. Weak linear depressions visible between coxal fields I and II, III and IV, and between coxal fields IV. Soft, striated cuticle located between posterior sternal plate and plate HPsAg. Lengths of ventral setae: 1 a 5–6, 2 a 6–7, 3 a 5–6, 4 a 5–6, ag 4. Plate HPsAg with one pair of suboval weak depressions located laterad anal opening. Legs ( Fig 5 ). All legs subequal in length. All legs setae smooth. Leg I ( Fig 5A ). Tarsus with two symmetrical claws and semi-oval empodium. Eupathidium k flattened, lanceolate, with distinctly rounded tip. Setae ( u ), tc” on tarsus and v” on tibia pointed. Other leg setae blunt-ended. Lengths of solenidia ω 1 6, ω 2 3, φ 1 7–8, φ 2 4. Leg II ( Fig 5B ). Solenidion ω 8, solenidion φ 4–5. Setae tc” , pv’ on tarsus and v” on tibia pointed. Other leg setae blunt-ended. Setae pl” , tc’ and pv” slightly thickened. Leg III ( Fig 5C ). Solenidion φ 3. Setae tc’ , tc” , pv’ on tarsus and v” on tibia pointed. Other leg setae blunt-ended. Leg IV ( Fig 5D ). Solenidion φ 3–4. Setae tc” , pv’ on tarsus and v” on tibia pointed. Other leg setae blunt-ended. Male and non-phoretic female unknown. Material examined. Seven female paratypes, Ukraine, Khmelnitsk Province, vicinity of settlement Chemerovtsy, 31 July 1963 , V.D. Sevastianov leg., on ant Lasius fuliginosus : 31 females, Crimea, South Demerdjy mountain, 24 September 2001 , A.A. Khaustov leg., in wet forest litter under oriental beech Fagus orientalis Lipsky. Remarks. The original description of F. octipes of Sevastianov (1980) is incomplete; thus, we prepared a redescription of this species. The present redescription of F. octipes is based mainly on material from Crimea . The female paratypes available for this study were found to be in poor condition, yet sufficient to confirm its conspecificity with the material from Crimea .