Atractides (Atractides) cognatus ( K. Viets, 1935 ),

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: 21-22

publication ID

http://dx.doi.org/10.11646/zootaxa.3876.1.1

publication LSID

lsid:zoobank.org:pub:071AFC59-C2EA-429A-8511-BAC5C4539C04

persistent identifier

http://treatment.plazi.org/id/03D48784-A93F-FFA3-FF35-1318FB16FEB3

treatment provided by

Plazi

scientific name

Atractides (Atractides) cognatus ( K. Viets, 1935 )
status

 

Atractides (Atractides) cognatus ( K. Viets, 1935) 

( Figs. 11 A –DView FIGURE 11 A – F. A – D, 12 BView FIGURE 12 A – B. A, Tab. 1)

Material examined. 0/ 1 /0, Mahua stream, downstream of national park entrance, Crocker  Range, Borneo, Malaysia, 5 º 46.491 N 116 º 25.770 E, alt. 865 m asl., 22 -ix- 2012; 2 / 1 /0 (1 / 1 /0 mounted), Mahua stream at crossing with main road, Crocker  Range, Borneo, Malaysia, 5 º 45.225 N 116 º 26.085 E, alt. 752 m asl., 22 -ix- 2012.

Compared material. Atractides cognatus ( K. Viets, 1935)  : Lectotype ♂, here designated, SMF 4423 Atractides spatiosus cognatus  ♂, type, K.Viets 42771, Sumatra, Wai Negre, Bach, 22.7. 1929 Thienem. coll; Paralectotype ♀, here designated, SMF 4433 Atractides spatiosus cognatus  ♀, type, K.Viets 42772, Sumatra, Urwaldbach, 1.2. 1929 Thienem coll. The original description does not contain a type designation.

Remarks. This species was originally described by K. Viets (1935) as subspecies of A. spatiosus  . Later on Lundblad (1971) synonymized it with the stem species, but Pešić & Smit (2009) rejected this synonymization and raised A. spatiosus cognatus  to full species rank, a point of view confirmed by our re-examination of the type series of A. spatiosus  and A. cognatus  . The latter species can be distinguished from A. spatiosus  by the shorter S- 1 / 2 interspace in both sexes and the slightly sclerotized excretory pore. Most character states of the Borneo specimens suggest attribution to A. cognatus  but the diagnostic features of A. spatiosus  and A. cognatus  need reconsideration based on material from a larger geographical area. Probably, the populations from Thailand and Malaysia assigned by Pešić & Smit (2009) to A. cognatus  represent an undescribed species ( Pešić et al. 2012 b).

Distribution. Indonesia (Sumatra, E Java - K. Viets 1935) Borneo (our study).

A.cognatus  A. propatulus 

SMF

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