Tectoribates proximus (Berlese, 1910)

Bayartogtokh, Badamdorj & Bae, Yang-Seop, 2024, New findings of poronotic oribatid mites (Acari: Oribatida) from Korea, Zootaxa 5405 (2), pp. 151-184 : 163

Tectoribates proximus (Berlese, 1910)

( Figures 9 & 10 )

Measurements. Body length: 300–324 μm; width of notogaster: 176–200 μm.

Supplementary description. Rostral margin with medial notch. Lamellae long and broad, separated; lamellar cusps with lateral and medial dens, subequal in size. Rostral setae long, strongly barbed, curved anteromedially. Lamellar setae strongly barbed, arising between lamellar cusps. Interlamellar setae long, barbed, approximately more than twice as long as lamellar setae, reaching the incision of lamellae. Bothridial seta relatively short (40–44 μm), club-shaped. Exobothridial setae long, smooth; porose area Ad not evident. Notogaster densely punctate; octotaxic system expressed as four pairs of small saccules. Ten pairs of notogastral setae thin, smooth, 20–24 μm in length. All epimeral setae setiform, smooth; setae 3b, 4a, 4b distinctly longer than other setae; setal formula 3–1–3–3. Six pairs of genital, one pair of aggenital, two pairs of anal and three pairs of adanal setae, all setiform, smooth. Discidium and custodium well developed. All legs heterotridactylous, medial claw thicker and larger than lateral claws.

Material examined. Two males and two females: SK Forest, Chungju, Chungbuk Province, Korea, from a mixed forest, soil and litter under broad leaved trees, Coll. B. Bayartogtokh, 13 May 2011 .

Distribution. Palaearctic region (Mediterranean Europe, Iran, Korea).

Remarks. The character states of the present material accord well with those of the specimens studied by Bernini (1973). Only the small difference we noticed is the slightly larger inner tooth of lamellar cusp in the Korean specimens, which is contrarily smaller in the European materials, and we consider this as an intraspecific variation of different populations.

Figures

FIGURE 9. Line drawing images of Tectoribates proximus (Berlese, 1910). A—Dorsal view; B—Ventral view; C—Lateral view of body.

FIGURE 10. Compound microscopic images of Tectoribates proximus (Berlese, 1910). A—Dorsal view; B—Ventral view; C—Lateral view of body.