Phthiracarus ranomafanensis Niedbała & Starý 2016, n. sp

Phthiracarus ranomafanensis n. sp. (Figures 4) Description Measurements of holotype: Prodorsum: length 364, width 273, height 136; prodorsal setae: sensillus (ss) 45, interlamellar (in) 94, lamellar (le) 53, rostral (ro) 76, exobothridial (ex) 43; notogaster: length 515, width 454, height 485; notogastral setae: c 1 61, c 1 / c 1 - d 1 =0.4, h 1 and ps 1 30; genitoaggenital plate 151 × 126, anoadanal plate 227 × 111. Medium-sized species; colour light brown. Prodorsum — with distinct sigillar fields. Lateral carinae absent. Sensilli (ss) short, club-shaped with rounded head. Other prodorsal setae fine, attenuate, in > ro > le > ex, rostral setae (ro) procumbent. Notogaster — with 15 pairs of fine, attenuate and very short notogastral setae, setae c 1 shorter than half of distance between setae c 1 - d 1. Setae c 1 and c 2 remote from anterior margin of notogaster, setae c 3 situated near this margin. Vestigial setae f 1 located anterior of h 1 setae (left side of holotype) or at the level of h 1 setae (right side of holotype). Four pairs of lyrifissures ia, im, ip and im present. Ventral region — Setae h of subcapitular mentum slightly longer than distance between them. Formula of genital setae 4: 5. Anoadanal plates with 5 pairs of very short setae, adanal setae ad 1 the longest. Adanal setae situated near paraxial border of plates, adanal setae ad 1 at the level of anal setae an 1 and adanal setae ad 2 at the level of anal setae a n 2. Legs — Chaetome of legs of "complete type "; setae d of femora I long, robust and slightly remote from distal end of article. Material examined — Holotype is deposited at DATE from locus typicus: Madagascar, Ranomafana National Park, 15. IV. 2011, secondary forest, latitude 21°13’03.6" S, longitude 47°22’02.9" E, altitude 1198 m, Amboditanimena village environs, sifted sample of forest litter, Winkler apparatus extraction, leg. P. Ba ˇnaˇr and R. Raveloson. Etymology — This new species is named after Ranomafana National Park. Comparison — The new species has the arrangement of genital setae similar to that of some South African species of the genus Phthiracarus such as P. densus Niedbała, 2006, P. endroedii (Mahunka, 1984) (Niedbała 2006). It is easily distinguishable from its congeners by the unusual arrangement of adanal setae situated near paraxial borders, adanal setae ad 1 and ad 2 at the level of anal setae an 1 and an 2, very short and fine notogastral setae, and by the presence of four pairs of notogastral lyrifissures.
Published as part of Niedbała, W. & Starý, J., 2016, Six new species of ptyctimous mites (Acari: Oribatida) from Madagascar, pp. 485-496 in Acarologia 56 (4) on page 491, DOI: 10.1051/acarologia/20164134, http://zenodo.org/record/5402188
{"references":["Niedbala W. 2006. - Ptyctimous mites (Acari: Oribatida) of South Africa - Annales Zoologici, 56 (Supplement 1): 1 - 97."]}