Mesotritia paraflagelliformis Niedbala, sp. nov.
Creators: name: Niedbała, Wojciech
name: Ermilov, Sergey G.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Oribotritiidae
Mesotritia
Mesotritia paraflagelliformis

description: Mesotritia paraflagelliformis Niedbała sp. nov.
(Fig. 1, A–E)
Description. Measurements of holotype. Species of medium size. Prodorsum: length 318, width 212, height 121; setae: ss 38, in 68, le 91, ro 94, ex 20; notogaster: length 576, width 384, height 376; setae: c 1 76, h 1 and ps 1 71; length of setae h of mentum 71, h / h–h =4; genital and aggenital plates 145 × 45, anal and adanal plates 293 × 40. Integument. Colour dark brown. Surface of body punctate.
Prodorsum with long lateral carinae, ventrally to it a trace of another carinae only half the size. Sensilli slightly fusiform, swollen in the middle. Rostral setae situated in the middle, slightly anteriorly of interlamellar setae. Relation of lengths: ro=> le> in> ss> ex.
Notogaster with fine and short (c 1<c 1 –d 1) setae. Setae of row c remote from anterior margin, c 1 and c 2 slightly more than setae c 3. Some striation on dorsal part of notogaster is the traces of deformation of specimen after the maceration process in lactic acid.
Ventral region. Seta h of subcapitular mentum considerably (four times) longer than distance between them. Six pairs of short genital setae and two pairs of aggenital setae present, ag 1 shorter than ag 2. One pair of short anal and three pairs of adanal setae present, ad 1 four times longer than ad 2 and ad 3, distance between ad 1 and ad 2 also four times longer than distance between ad 2 and ad 3. Lyrifissures iad situated anteriorly of ad 3.
Legs. Chaetome: I 1-3 -5(2)-5(1)-19(3), II 1-4 -4(1)-4(1)-13(2), III 2-3 -2(1)-2(1)- 11, IV 2-3 -2(0)-2(1)-10.
Material examined. Holotype: Philippines, Luzon Island, Benguet Province, 5823— Puff Cliff, Benguet State University campus, 13.II.2010 (R.C. Garcia), from sample of litter from pine (Pinus kesiya) forest.
Etymology. The prefix para is Latin meaning “near” and refers to the similarity between the new species and Mesotritia flagelliformis (Ewing, 1909).
Comparison. The new species is very similar to the Holarctic species, Mesotritia flagelliformis (Ewing, 1909) (Niedbała 2000), by the body dimension, shape of sensilli and arrangement of setae of ventral plates. However, it is distinguishable from the latter by the presence of a weak lower lateral carinae (versus one pair of lateral carinae in M. flagelliformis); arrangement of prodorsal setae, rostral setae situated slightly anteriorly of interlamellar setae (versus slightly anteriorly of lamellar setae); longer notogastral setae, c 3>1/2 c 3– cp (versus c 3<1/2 c 3– cp) or h 1>1/ 2 h 1– ps 1 (versus h 1<1/2 h 1– ps 1) and setae ad 2 and ad 3 considerably, more than 4 times, shorter than ad 1 (versus ratio ad 1: ad 2: ad 3 is approximately 2.5: 2: 1).
description: Published as part of Niedbała, Wojciech & Ermilov, Sergey G., 2017, New species and records of ptyctimous mites (Acari, Oribatida) from the Philippines, pp. 119-128 in Zootaxa 4231 (1) on page 121, DOI: 10.11646/zootaxa.4231.1.9, http://zenodo.org/record/311822