Oxus (Oxus) fuscus, Smit, Harry & Pešić, Vladimir, 2014

Smit, Harry & Pešić, Vladimir, 2014, Water mites from Mount Kinabalu and the Crocker Range, Borneo, Malaysia (Acari: Hydrachnidia), with the description of 34 new species, Zootaxa 3876 (1), pp. 1-71 : 15

publication ID	https://doi.org/ 10.11646/zootaxa.3876.1.1
publication LSID	lsid:zoobank.org:pub:071AFC59-C2EA-429A-8511-BAC5C4539C04
DOI	https://doi.org/10.5281/zenodo.5695942
persistent identifier	https://treatment.plazi.org/id/03D48784-A925-FFB8-FF35-14C2FE45F99A
treatment provided by	Plazi
scientific name	Oxus (Oxus) fuscus
status	sp. nov.

Treatment

Oxus (Oxus) fuscus n. sp.

( Figs. 7A–C View FIGURES 7 A – C )

Type series. Holotype female, Mahua stream, Mahua, Crocker Range, Borneo, Malaysia, 5º 47.838 N 116º 24.510 E, alt. 1052 m asl, 21-ix-2012 ( RMNH). Paratypes: One female, Unnamed creek Bansadon Trail, Inobong, Crocker Range, Borneo, Malaysia, 5º 51.456 N 116º 0 8.403 E, alt. 436 m asl, 18-ix-2012 ( RMNH); one male, Kibamabangan River at waterfall, Inobong, Crocker Range, Borneo, Malaysia, 5º 51.280 N 116º 0 8.417 E, alt. 433 m asl, 18-ix-2013 ( RMNH); one female, Little Lumotok stream, Sayap, Borneo, Malaysia, 6º 0 9.497 N, 116º 34.027 E, alt. 1069 m asl., 17.ix.2012 ( RMNH); one female, Silau-Silau stream near park headquarters, Mt Kinabalu, Borneo, Malaysia, 6º 0 0.595 N 116º 32.497 E, alt. 1566 m asl, 10-ix-2012 (SP).

Diagnosis. Small in size (length <550), dorsal furrow without glandularia or platelets, P5 very slender, terminal seta of IV-leg-6 longer than segment.

Description. Female: Colour brownish, idiosoma 526 (502–527) long, 227 (219–239–251) wide and 296 (284–292) high. Dorsal furrow without glandularia or platelets. Tips of Cx-I with two stout curved setae, one short and one long. Coxal surface with a punctate pattern, near anterior margin reticulated. Genital field with three pairs of acetabula, anterior pair long and narrow, central and posterior pair gradually shorter. Posterior of genital field lies the excretory pore, but not visible in ventral view. Length/height of P1-P5: 26/18, 33/18, 32/20, 41/16, 22/6. P3 with two long anterodorsal setae, P5 very slender. Length of IV-leg-5–6: 56, 60; terminal seta of IV-leg-6, 94 long.

Male: In all aspects similar to female. Idiosoma 494 long and 263 high.

Etymology. Named for its brown colour.

Remarks. The new species is closest to Oxus lewisi ( Wiles, 1999) , known from Brunei. With a length of 827, O. lewisi is much larger, with larger palp and leg segments and the terminal seta of IV-leg-6 equal in length to segment.

Distribution. Borneo.