New and interesting species of ptyctimous mites (Acari, Oribatida) from Nepal Author Niedbała, Wojciech Author Ermilov, Sergey G. text Zootaxa 2018 2018-09-07 4472 1 176 184 journal article 29464 10.11646/zootaxa.4472.1.10 c1d44d58-6e2d-4937-92f5-471155fa4a14 1175-5326 1439974 CF7BDCC2-F191-4F42-8178-27E08BCE4175 Plonaphacarus diutissimus Niedbała sp. nov. ( Fig. 1A–J ) Measurements . HOlOtype . PrOdOrsum: length 273, width 172, height 96; ss 71, in 172, le 88, ro 106, ro–ro 35, in–in 48; nOtOgaster: length 545, width 384, height 323; c 1 62, c 1/ c 1– d 1 = 1.06, h 1 54, ps 1 132; genitOaggenital plate 156 × 101; anOadanal plate 202 × 106. Paratype I. PrOdOrsum: length 303, height 141; nOtOgaster: length 636, height 404. Paratype II. PrOdOrsum: length 202, height 81; nOtOgaster: length 404, height 273. Paratype III. PrOdOrsum: length 253, height 96; ss 88, in 129, le 99, ro 121; nOtOgaster: length 464, height 283; c 1 126, c 1/ c 1– d 1 = 1.04, h 1 116, ps 1 101. Integument . COlOur light brOwn. Surface Of bOdy rugged. Prodorsum with very lOng lateral carinae reaching the rOstrum; sigillar fields invisible because Of strOng integument. Sensilli lOng, narrOwly spindle-shaped in distal half, rOugh. Interlamellar setae similar tO nOtOgastral setae, erect, thick, sparsely barbed in distal half. Lamellar setae shOrter, slender, sparsely barbed. ROstral setae lOng, thick, rOugh, directed inwards. Distance between rOstral setae shOrter than between interlamellar setae. ExObOthridial setae vestigial. Relative length Of setae: in > ro > le > ss . Notogaster with 15 pairs Of relatively lOng ( c 1= c 1– d 1), thick, rigid setae cOvered with distinct, sparsely distributed spines in distal half; setae c 1 pOsitiOned near anteriOr margin, c 3 slightly remOte, c 2 far frOm margin, vestigial setae f invisible. TwO pairs Of lyrifissures ( ia and im ) present. Ventral region . Setae h Of mentum vestigial. GenitOaggenital plates with 9 pairs Of setae with fOrmula: 6(4+3): 2. AnOadanal plates each with 5 well-develOped setae, twO anal setae the shOrtest, slender, rOugh, adanal setae thicker, barbed, ad 3 shOrtest, ad 2 lOngest. Legs . FOrmulas Of setae and sOlenidia Of “cOmplete” type. Setae d On femOra I fOrked distally and remOte frOm distal end Of article. Material examined. HOlOtype and three paratypes : Nepal , Ilam Dist., Gitang KhOla, 2550 m a.s.l., mixed fOrest, sOil, lOcality 121, 28.V.1980 – 31.V.1980 (J. Martens & A. AusObsky). Type deposition. The hOlOtype (ethanOl with drOp Of glycerOl) and three paratypes (ethanOl with drOp Of glycerOl) are depOsited in DATE . Etymology. The specific name diutissimus is Latin fOr the lOngest and alludes tO the length Of lateral carinae and rOstral setae Of prOdOrsum. Remarks. This is the Only palaeaerctic Plonaphacarus species with lOng rOstral setae. SOme afrOtrOpical species, P. machadoi ( BalOgh, 1958 ) , P. tanzicus ( Mahunka, 1993 ) , P. ngongi Niedbała, 2001 and P. styphelos Niedbała, 2001 , alsO have such lOng rOstral setae, but they have shOrter lamellar and nOtOgastral setae (versus distinctly lOnger), fOur pairs Of lyrifissures (versus twO pairs), and setae d Of leg femOra I nOt fOrked distally (versus fOrked).