Homolophus albofasciatus ( Kulczyński, 1901 )

Snegovaya, Nataly Yu. & Cokendolpher, James C., 2021, Further studies on harvestman genus Homolophus (Opiliones: Phalangiidae), with descriptions of two new species, Zootaxa 4908 (3), pp. 301-353 : 311

publication ID

https://doi.org/ 10.11646/zootaxa.4908.3.1

publication LSID

lsid:zoobank.org:pub:F2774810-3C77-426E-A1BC-0F42F21E7F9B

DOI

https://doi.org/10.5281/zenodo.4450786

persistent identifier

https://treatment.plazi.org/id/039C113F-0972-FF8A-98EB-DDB3FEC0FA15

treatment provided by

Plazi

scientific name

Homolophus albofasciatus ( Kulczyński, 1901 )
status

 

Homolophus albofasciatus ( Kulczyński, 1901) View in CoL

Figures 3–4 View FIGURE 3 View FIGURE 4

Phalangium Nordenskiöldi var. albofasciata Kulczyński, 1901: 320 View in CoL , 351–352 [junior subjective synonym of Phalangium nordenskioeldi L. Koch, 1879a View in CoL by Staręga (1964); synonymy disclaimed by Cokendolpher (1987: 91)].

Euphalangium nordenskiöldi var. albofasciatum — Roewer, 1911: 34–35; Roewer 1912: 111, 114; A. Müller 1918: 563–564, pl. 11, fig.14

Euphalangium albofasciatum View in CoL — Roewer, 1923: 764–765; Roewer 1956: 260; Schenkel 1963: 484; Starćga 1964: 399–403, figs. 14–17; Gricenko 1979a: 38, fig. 36; Gricenko 1979b: 130–131, fig. 16; Gricenko 1980: 561

Homolophus albofasciatus View in CoL — Cokendolpher 1987: 91; Li & Song 1993: 239

Diagnosis. Homolophus albofasciatus differs from all other species including the most closely related, Homolophus arcticus Banks, 1893 , by having the following characters: short and thick legs; comparatively short but thick penis, broadest at base and gradually narrowed to tip; glans widest (in lateral view) terminally near junction of stylus.

Type Locality. Mongolia, Urga (currently Ulan Bator), 47°55’N, 106°55’E GoogleMaps .

Distribution. Mongolia (Central and South Khangai Amigas) and here newly recorded from China ( Fig. 4 View FIGURE 4 ).

Specimens Examined. CHINA, Xîzàng (Tibet), Qinghai Province, Sur-Man Monastery and surroundings, 3353 m a.s.l., October 1900 (1 male, ZIN) ; za-Chu River (Mekong) (1 male, ZIN) ; Kozlov Mongolian-Tibetan expedition, Hurkhu mountains , 1– 7.11.1925, leg. Przhevalsky, field # N 469-926 (2 females, ZIN) .

Description. Medium-sized harvestmen; male body rectangular, with rounded corners; medium sclerotization of body cuticle, less slender, 1.65 times longer than wide; length 5.3 mm, width 3.2 mm; body dorsally finely granulated, light brown, with transverse rows of small denticles along borders and on lateral edges of tergites. Anterior border of cephalothorax with group of few, dispersed, black-tipped denticles, and similar, slightly smaller denticles scattered around on cephalothorax. Ocularium low, round, small, 1.7 times its length from anterior margin of cephalothorax, with 3–5 black-tipped denticles on each side. Legs short, angular in cross-section, I and III (especially Fe) thickened, with longitudinal rows of denticles. Leg lengths (mm): I 2.0 + 1.0 + 2.3 + 2.5 + 3.5 = 11.3, II 3.0 + 1.2 + 2.8 + 2.8 + 7.0 = 14.0, III 2.4 + 1.0 + 2.3 + 2.8 + 5.0 = 13.5, IV 3.2 + 1.3 + 2.5 + 4.3 + 7.5 = 18.8. Pedipalp segment lengths (mm): 1.1 + 0.8 + 0.8 + 1.3 = 4.0. Pedipalp slender, Fe ventrally with several larger denticles; Pa dorsally with several denticles; Ti and Ta with various kinds of setae and ventrally with strip (several denticles wide) of sensory microdenticles. Chelicerae enlarged sexually dimorphic) with some tabby marks, basal segment dorsally with several smaller denticles, distal segment anteriorly densely covered with microdenticles. Cheliceral basal segment ventrally smooth without bulge, length 1.6 mm, distal length 1.8 mm. Penis with wide base, tapers distally; truncus dorsoventrally flattened, bowed, recurved in lateral view; glans widest (in lateral view) terminally near junction of stylus; length (mm): truncus 5.3, glans 0.25, stylus 0.1.

Comments. Specimens over 100 years old. Colors likely faded. Although females were present in the samples studied, they were not described here because they were seen in a foreign museum prior to the beginning of work on this manuscript.

ZIN

Russian Academy of Sciences, Zoological Institute, Zoological Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Opiliones

Family

Phalangiidae

Genus

Homolophus

Loc

Homolophus albofasciatus ( Kulczyński, 1901 )

Snegovaya, Nataly Yu. & Cokendolpher, James C. 2021
2021
Loc

Homolophus albofasciatus

Li, S. - Q. & Song, D. - X. 1993: 239
Cokendolpher, J. C. 1987: 91
1987
Loc

Euphalangium albofasciatum

Gricenko, N. I. & H. I 1980: 561
Gricenko, N. I. & H. I 1979: 38
Gricenko, N. I. & H. I 1979: 130
Schenkel, E. 1963: 484
Roewer, C. F. 1956: 260
Roewer, C. F. 1923: 764
1923
Loc

Euphalangium nordenskiöldi var. albofasciatum

Muller, A. 1918: 563
Roewer, C. F. 1912: 111
Roewer, C. F. 1911: 34
1911
Loc

Phalangium Nordenskiöldi var. albofasciata Kulczyński, 1901: 320

Cokendolpher, J. C. 1987: 91
Kulczynski, W. 1901: 320
1901
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