Unionicola rossica Tuzovskij & Semenchenko, 2015, sp.n.

• Main Authors: Tuzovskij, Petr V., Semenchenko, Ksenia A.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Arachnida; Trombidiformes; Unionicolidae; Unionicola; Unionicola rossica; Seta; Anadyr; Anadyr’; Magadan; Sickle; Anadyr'
• Online Access: https://zenodo.org/record/6092185; https://doi.org/10.5281/zenodo.6092185

Unionicola rossica sp.n. (Figs 6 A–C, 7 A–D) Syn.: Unionicola dresscheri, Tuzovskij, Biologicheskie Nauki, 1985, 10: 27–33. Type series. Holotype: female, slide 2819 - IBIW, 3.08. 1981, Russia, Magadan Province, Anadyr District, small lakes near settlement Markovo. Paratypes: 13 males, 8 females: from the same locality as holotype, June–September 1978, 1981; 2 males, 3 females: Magadan Province, Tenkinsky District, small lakes near village Agrobasa, June–July 1979. Additional material: 4 females, Samara Province, Stavropol District, National natural Park “Samarskaya Luka”, small lake near village Koltsovo, July 1992, leg. P.V. Tuzovskij. All males and females are collected free-swimming. Diagnosis. Adults. Dorsal platelets not developed; coxal plates III+IV elongated with straight medial margin; P- 3 with two short, thick setae, base of lateral seta located near middle of segment, both setae a little shorter than segment, P- 4 with long lateral tubercle, both ventral tubercles small, P- 5 moderately long with slightly concave ventral margin; genital plates of male relatively narrow, fused to each other by posterior ends only; anterior plate without front subcutaneous projections, medial setae on all genital plates in female long and subequal; swimming setae on IV-Leg- 5 shorter than IV-Leg- 6; claws of legs I thick, hook-like, claws of legs II–IV thin, sickle-shaped. Description. Both sexes. Dorsal platelets not developed. Anterior and posterior coxal groups (Fig. 6 A) divided by narrow 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 1.25–1.35) with straight medial margin. Posterior margin of coxal plate oblique, directed posterolaterally. Surface of all coxal plates with reticulations. Pedipalps (Fig. 7 A) moderately long: P- 2 with nearly straight ventral margin and three to four proximal setae and ...