Unionicola markovensis Tuzovskij 1990

• Main Authors: Tuzovskij, Petr V., Semenchenko, Ksenia A.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Arachnida; Trombidiformes; Unionicolidae; Unionicola; Unionicola markovensis; Anadyr; Anadyr'; Chukotka; Chukotka Autonomous Okrug
• Online Access: https://doi.org/10.5281/zenodo.6092193; http://treatment.plazi.org/id/039787D21944FFA301CF4B2DFB42FF7C

Unionicola markovensis Tuzovskij, 1990 (Figs 12A–D, 13A–D) Material examined. 2 male, 4 females: Russia, Magadan Province, Tenkinsky District, small lakes near village Agrobasa, June–July 1979; 1 female, Chukotka Autonomous Okrug, Anadyr District, small lake near settlement Markovo, 29.07.1981, leg. P.V. Tuzovskij. All males and females are collected free-swimming. Diagnosis. Adults. Dorsum with two pairs of unequal platelets; medial margin of coxal plates III+IV straight and longer than their width; P-3 with two subequal setae, base of lateral seta located proximally to middle of segment, P-4 with very long lateral tubercle and two relatively short ventrolateral tubercles, P-5 curved; anterior plates of female with long, thick unequal medial setae, posterior plates with long, thick medial setae; genital plates of male relatively narrow, fused to each other by posterior ends only; swimming setae on IV-Leg-5 slightly shorter than IV-Leg-6; claws of legs I thick, hook-like, claws of legs II–IV thin, sickle-shaped. Description. Both sexes . Dorsum with two pairs of unequal platelets (Fig. 12A), anterior platelets relatively large, elongate; posterior platelets oval or circular and considerably smaller than anterior ones. Anterior and posterior coxal groups (Fig. 12B) divided by wide interspace; sclerites, bearing setae and glandularia Le , much larger than sclerites bearing other idiosomal setae. Apodemes of first coxal group reaching or slightly extending beyond to anterior margin of third coxae. Coxal plates III+IV elongated (L/W ratio 1.3–1.8) with straight medial margin, posterior margin of coxal plate IV oblique directed posterolaterally. Surface of all coxal plates with reticulations. Pedipalps (Fig. 13A) rather slender: P-2 with nearly straight ventral margin with three to four proximal setae and single dorsodistal short seta; P-3 with long lateroproximal and relatively short dorsodistal setae; P-4 with long lateral and two relatively small subequal tubercles; bases of lateral and anterior ventral tubercles ...