Revision of Fenestrobates (Acari, Oribatellidae) with description of F. marauni sp. nov., from South America, and new diagnosis for Oribatellidae Author Ermilov, Sergey G. Tyumen State University, Tyumen, Russia 625003. E-mail: ermilovacari @ yandex. ru Author Behan-Pelletier, Valerie M. Invertebrate Biodiversity Program, Research Branch, Agriculture and Agri-Food Canada, K. W. Neatby Bldg., Ottawa, Ontario, Canada K 1 A 0 C 6. E-mail: Valerie. behan-pelletier @ agr. gc. ca text Zootaxa 2014 2014-07-03 3827 2 258 272 journal article 5318 10.11646/zootaxa.3827.2.7 bc9e21fb-d9df-44fa-a329-c0557fa713d3 1175-5326 4920524 C3BBEA41-3032-4366-B31E-F4AD8E0AA672 Fenestrobates capucinus Balogh and Mahunka, 1969 ( Figs. 19, 20 ) Oribatella ( Fenestrobates ) capucinus ( Balogh and Mahunka, 1969 ) Subías, 2004 , p. 172 . Material examined. Two paratypes (male, female) kindly loaned from the Hungarian National History Museum, Budapest. Diagnosis. Body size 289–333 by 196–225 (measurements from Balogh & Mahunka 1969 ). Interlamellar setae about 120, setiform, slightly thickened, barbed, inserted posterolaterally on lamella, just anterior of bothridium. Anterior margin of notogaster distinctly flattened between bothridia. Granular cerotegument evident in dorsosejugal scissure. Notogastral setae, barbed, long 45–50 (based on unbroken setae h 1 , p 1 , p 2 ). Epimeral setal formula 2–1–3–2; setae 3b and 3c thick, barbed, long, about 45–50; seta 4b thick, barbed, long, about 60. Other epimeral setae about 20–24, thin, barbed. Ventral depression between pedotectum I and the lateral body wall, about 21 long × 15 wide, when viewed in ventral aspect. Description. Integument : Micropunctate. Body dark brown. Lamellae, pedotectum I and anterior of coxisternal region with distinct longitudinal striae, striae on lamella longitudinal, striae on pedotectum I transverse, those of coxisternum transverse anteriorly, longitudinal laterally. Distinct transverse line anteriorly on epimere I extending between pedotecta I. Prodorsum . Rostrum with two blunt teeth, margin concave between teeth. Strong, medial, longitudinal ridge posterior to indentation, extending to level of rostral setae ( Fig. 20 ). Lamella broad, straight, almost contiguous anteromedially, fused posteromedially, interlamellar pocket very small. Lamella about 129 long, lamellar cusp (measured from translamellar region) about 93, lateral and medial dentes subequal in width, tapered, smooth, about 45 long and about 53 long, respectively. Rostral seta about 85 long, barbed, curved anteromedially. Lamellar setae about 91, thick, heavily barbed, tapered, blunt, directed anteriorly. Interlamellar setae about 120, setiform, thick, heavily barbed, inserted posterolaterally on lamella, just anterior of bothridium. Sensillus thick, setiform (without developed head), barbed, about 143, thickest about 2/3 along length, tapered. Exobothridial seta not evident. Tutorium weakly sclerotized, narrow, curved ventromedially, about 115 long, of which cusp about 60 long, with three or four strong teeth distally, two to four small teeth dorsally, with tooth ventrally ( Fig. 20 ). Notogaster . Anterior margin truncate, outline straight between bothridia. Granular cerotegument evident in dorsosejugal scissure. Dorsophragmata weakly visible (not illustrated in Balogh & Mahunka 1969 ), pleurophragmata clearly evident. Four pairs of porose areas small, rounded. Notogastral setae, setiform, barbed, long; 45–50 (based on unbroken setae h 1 , p 1 , p 2 ). Lateral podosomal and epimeral regions . Genal teeth strong, triangular ( Fig. 20 ). Pedotectum I (Pd I) large, convex, appearing weakly pointed anteriorly because of ridge extending laterally on epimere I between bases of pedotecta I. Pedotectum II (Pd II) of medium size, scale-like, posterolateral tooth not visible. Porose areas Am elongate, poorly visible; Ah oval, with distinct borders; Al not visible (only visible with dissection). Custodium short, blunt-ended, directed anteriorly. Epimeral setal formula 2–1–3–2; setae 3b and 3c thick, barbed, long, about 45–50; seta 4b thick, barbed, long, about 60; setae 3b, 3c, 4a, 4b directed anteriorly. Other epimeral setae about 20–24, thin, barbed. Depression in pedotectum I oblong, about 21 long × 15 wide. Anogenital region . Genital setae barbed; anterior two pairs about 16; other four pairs shorter. Anal and adanal setae barbed, anal seta about 16, adanal setae about 20. Anal and adanal setae directed anteriorly. Anal setae spaced medially on anterior and posterior of anal plates. Lyrifissure iad longitudinally oriented, positioned anterolateral to anal aperture, anterior of seta ad 3 ( one paratype specimen with iad unilaterally positioned anterolateral of ad 3 ). Postanal porose area about 7 × 3. Legs . As for Fenestrobates marauni sp. nov. (see below).