Eupatrella bijani Wiles, 1999,

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: 9

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-A923-FFBE-FF35-1406FD78F9B1

treatment provided by

Plazi

scientific name

Eupatrella bijani Wiles, 1999
status

 

Eupatrella bijani Wiles, 1999 

( Figs. 3 A –EView FIGURE 3 A – E)

New records. 0/ 2 /0, Liwagu River at crossing with summit, Mt Kinabalu, Borneo, Malaysia, 6 º 01.868 N, 116 º 32.912 E, alt. 1919 m asl., 11 -ix- 2012; 0/ 1 /0, Small stream Layang Layang, Mt Kinabalu, 6 º 0 2.711 N 116 º 33.627 E, alt. 2697 m asl, 12 -ix- 2012.

Description. Female (male unknown): As the original description lacks figures of chelicerae and gnathosoma, we give additional figures and measurements based on two females from Borneo (a larger, mature, and a juvenile [indicated by larger sclerite pores and a weaker sclerotization, see Figs. 3 A –BView FIGURE 3 A – E]).

Measurements (mature specimen, in parentheses juvenile; [in square parentheses measurements from Wiles 1999])—Idiosoma (ventral view: Fig. 3 BView FIGURE 3 A – E) length 1390–1584 (1013) [460], width 988–1206 (700) [300]; distance between anterior tip of Cx-I and posterior margin of Cx-IV 759 (650); gonopore length/width 205 (194) [200]/ 166 (159). Capitulum length 258 (244) [141]; chelicera total length 489 (483), basal segment length 319 (305), claw length 185 (194), basal segment/claw length ratio 1.7 (1.57); Palp ( Fig. 3 EView FIGURE 3 A – E): total length 415 [325], dorsal length/ height, dorsal length/height ratio: P1, 55/ 35, 1.6 [46 /-, -]; P2, 85/ 51, 1.68 (89 / 52, 1.7) [65 /-, -]; P3, 69/ 51.5, 1.34 (71 / 53, 1.34) [54 /-, -]; P 4, 157 / 37, 4.2 (152 / 40, 3.8) [130 /-, -]; P5, 49/ 16, 3.0 (48 / 28, 2.65) [30 /-, -]; length P 2 /P 4 ratio 0.54 (0.59) [0.5]. Legs: dorsal length of I-leg- 2–5: 131 (116), 116 (116) [78], 159 (158) [130], 180 (177) [95], 208 (197) [147]; dorsal length of IV-leg: 131 (131), 119 (116), 144 (144) [78], 297 (294) [260], 272 (269) [217], 259 (250) [183].

Remarks. The two female specimens from this study match the general morphology of Eupatrella bijani Wiles, 1999  , described from S. Bersih, a tributary of the River Belalong in Brunei Darussalem. Wiles’ (1999) measurements of idiosoma (length 460, width 300) are in contradiction compared with the specimens in our study, but also with the gonopore length (200) in the original description. While the idiosoma size of our specimens exceed by more than 100 % dimensions given by Wiles (1999), the gonopore length is in good agreement with the original description. Most probably the measurements of idiosoma in Wiles (1999) are mistaken by a factor of about two.

Distribution. Borneo ( Wiles 1999, present study).