Momonia (Orientmomonia) koreana Pešić 2014, n. sp.
Creators: name: Pešić, Vladimir
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Momoniidae
Momonia
Momonia koreana

description: Momonia (Orientmomonia) koreana n. sp.
(Figs. 5 D­F, 8A­B, 9A­I)
Material examined. Holotype male, dissected and slide mounted, South Korea, CR10 Jeollabuk Province, Ne myeon Mt, stream near Silsung temple, 1.7 km to Jiksopolpol falls, Naebyeansan NP, 0.6 km from Naebyeansan Info Center, 35°64'65.978"N, 126°58'62.285"E, 10.x.2012, Pešić & Choi.
Diagnosis. As for subgenus.
Description
Male – Colour greenish. Idiosoma oval in shape. Sclerotized plates wrinkled. Lateral eyes enlarged. Dorsum with a transverse anterior plate bearing postocular setae, its anterior margin forming a shallow bay for the unpaired frontal organ, and a large, longitudinally wrinkled posterior plate; anterior and posterior plates flanked by ring composed of 7 pairs of platelets, with 1th, 2nd, 4th, 5th, 6th and 7th pairs bearing glandularia, and 4 pairs of tiny sclerites bearing slit organs (Figs. 5D, 8A).
Venter nearly covered by ventral shield (Fig. 8B); Cx­I+II with distinct medial edges, separated from remainder of venter by an articular membrane; Cxgl­1 located on anterolateral corner of Cx­III, medial margin of Cx­III much longer than medial margin of Cx­IV, Cx­IV with rounded projections covering the IV­L­insertions and on each side a field of about 12 ­16 curved setae in posterolateral part, Cxgl­4 located between Cx­IV and genital field. Genital field (Fig. 5F) subterminal, lying between Cx­IV, with three pairs of acetabula in gonopore; 6­8 pairs of genital setae around gonopore; excretory pore and flanking glandularia widely fused to ventral shield.
Palp (Figs. 5E, 9 F­G): dorsal setae of P­2 and P­3 long and slender, P­4 with a small anterodorsal peg­like seta, two thick ventral setae on a prominent tubercle and four dorsal hair­like setae; P­5 slender, with one main claw flanked by three shorter ones.
I­L modified as characteristic in the genus Momonia (Figs. 9 A­B); I­L­5 slightly bowed dorsally; III­L­3­5 and IV­L­4­5 each with 3 long swimming setae, all legs with paired main claws bearing dorsal and ventral clawlets, without claw blade (Fig. 9E); IV­L­3­5 with pennate setae (Fig. 9D).
Measurements: Idiosoma L/W 578/441; anterodorsal plate L/W 97/222 (ratio 0.44); posterodorsal plate L/W 328/313 (ratio 1.05); L of dorsal sclerites (1­7) from anterior to posterior: 81­87, 105­106, 41­42, 78­84, 75, 72­78, 78; Cx­I+II L/W 162/228; genital field: gonopore L/W 75/52
Palp: palp total L 294, dL/H, dL/H ratio: P­1, 34/25, 1.38; P­2, 77.5/, 1.8; P­3, 45/34, 1.33; P­4, 83/21, 3.9; P­5, 54/16.5, 3.3; length ratio P­2/P­4 0.93. Gnathosoma vL 119, chelicera total L 119.
Legs: I­L­5 dL 323, central H 40, dL/central H 8.1; I­L­6 dL 109, maximum H 46, dL/maximum H ratio 2.35; L ratio I­L­5/6 3.0; dL of I­L: 56, 119, 144, 153­162, 323, 108­109; dL of IV­L: 73, 94, 113, 122, 156, 156.
Female – unknown.
Etymology. Named after the country where the new species was detected.
Habitat. A small sandy/bouldary pool near the main stream, shaded by riparian vegetation (Fig. 11).
Distribution. Korea; known only from the type locality.
description: Published as part of Pešić, Vladimir, 2014, Checklist of the water mites (Acari, Hydrachnidia) of Korea, with description of one new subgenus and two new species, pp. 204-230 in Ecologica Montenegrina 1 (4) on pages 223-224, DOI: 10.37828/em.2014.1.29, http://zenodo.org/record/8029398