Pardosa tesquorum Odenwall 1901
Creators: name: Kronestedt, Torbjörn
name: Marusik, Yuri M.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Pardosa
Pardosa tesquorum

description: Pardosa tesquorum (Odenwall, 1901)
Figs 34–35, 37, 39, 41, 43, 46–47, 50–51, 54–55, 57–58, 61–62, 65–66, 77–82, 117
Lycosa tesquorum Odenwall, 1901: 4, figs 5, 6 (♀).
Pardosa albiceps Emerton, 1915: 153, pl. 3, figs 5, 5a, 5b (♂)
Pardosa tesquorum: Kulczyński 1908: 90, pl. 3, figs 108–109 (♂); Zyuzin 1979: 435, figs 32 & 58 (♂); Dondale & Redner 1986: 826, figs 17, 18, 43–44 (♂); Dondale & Redner 1990: 154, figs 185–189 (♂); Paquin & Dupérré 2003: 166, figs 1852–1855 (♂); Vogel 2004: 106, figs 134, 136 (♂).
Type material. Syntypes. Three intact females and one separate epigyne (Fig. 58) (No. 61.020, ZMHU), without locality label, from Russia, presumably southern Buryatia (Odenwall 1901: "omnibus locis Sibiriae Transbaicalensis"), examined.
Other material examined. RUSSIA. Tyumen Area: Polar Ural, Krasnyi Kamen, river shore, 5 July 1994 (S. Koponen, ZMUT), 13 5Ƥ. Krasnoyarsk Territory: down flow of Kotui River (71°24'N 103°E), June–July 2010 (O.A. Khrulyova, IBPN), 983 49Ƥ; Kotui River, 114 km from Khandyga village (71º24'N 102º53'E), 205 m, 20-30 July 2010 (A.V. Barkalov, ISEA), 1383 5Ƥ. Buryatia: Barguzin valley, Nesterikha River (53º39'N 109º42'E), 500 m, 1 July 1996 (S. Koponen, ZMUT), 13; Barguzin valley, Maisky (54º35'N 110º48'E), meadow, 3–11 July 1996 (S. Koponen, ZMUT), 4Ƥ; Barguzin valley, Zugdeli (55º01'N 111º18'E), 650 m, 9 July 1996 (S. Koponen, ZMUT), 23 1Ƥ: Barguzin Range, Olso River (54º52'N 110º55'E), 950 m, 7 July 1996 (S. Koponen, ZMUT), 33 1Ƥ. Yakutia: Yana River lower flow, Kular Village, environs (70.35o N 134.34o E), July 1996 (N.N. Vinokurov, NHRS) 33 1Ƥ. Magadan Area: 15 km E of Magadan, 31 July–27 September 1996 (Y.M., CAS), 13 27Ƥ. 50 km W of Magadan, Oira River (59º50'N 151º55'E), summer 1994 (D.B., CAS), 563 6Ƥ; Gertner Bay (env. of Magadan), 3 km W of Nyuklya Village (59º35'N 151º08'E), 23 Sept. 1995 (Y.M., CAS), 1Ƥ. Chukotka: Apapelgino (69°47'46"N, 170°37"E), 22 July 2011 (O.A. Khrulyova, IBPN), 1Ƥ 3 juv. Kamchatka: Koryakia, environs of Tigil Village (ca 57°46'N 158°40'E. 7 July–5 August 2010 (A.S. Ryabukhin, IBPN), 1Ƥ. – CANADA. Yukon Territory: Kluane Lake, Cultus Bay (61°11'N 138°20'W), 2600–2800 ft., various habitats: under stones around small lake on moraine, pebbly bank and grass, pebbles near moss spruce grove, and sweeping within aspen grove, 11–23 July 1993 (Y.M., IBPN), 183 35Ƥ; Kluane Lake, Christmas Bay (61°03'N 138°21'W) most on pebbly banks, 22 July 1993 (Y.M., IBPN), 6Ƥ; Kluane Lake, environs of research station, south bank of the lake, 5–11 July 1993 (Y.M., D.B., G.Z., IBPN), 43 12Ƥ; 1 mi. SE of bridge on Takhini River on Whitehorse-Haines Junction Hwy, litter in willow grove near alkaline lakes, 20 July 1993 (Y.M., IBPN), 1Ƥ; environs of Carmacks, Tatchun Lake Campground (62°18'N 136°09'W), around lake, meadow and under stones, 16– 18.07.1993 (Y.M., IBPN), 33Ƥ; environs of Carmacks (62°11'N 136°22'W), aspen grove with moss and grass, 17 July 1993 (Y.M., IBPN), 4Ƥ; environs of Carmacks (62°05'N 136°35'W), in spruce- Calluna forest, 18 July1993 (Y.M., IBPN) 1Ƥ. – USA. Alaska: Hwy, Northway Village, 4 July 1993 (Y.M., IBPN), 1Ƥ. Colorado: Park County, Lynch Creek 15.5 mi. W of Hartsel, 10 440 ft., 15 July 1972 (B. Vogel NHRS), 23 3Ƥ.
Diagnosis. This species is closely related to P. logunovi sp. nov. Males differ from those of the latter by having (1) palpal patella yellowish with light hairs (cf. Figs 39 & 38), (2) terminal apophysis slightly narrower and more angled (cf. Figs 43 & 42), and (3) basally directed paleal process less curved (cf. Figs 50 & 48). Females are distinguishable from those of P. logunovi sp. nov. by the arrangement of folds in the epigynal cavity bottom as seen in dorsal view (cf. Figs 65 and 63).
Description. Male (from Russia: Buryatia, Barguzin Range). Total length 5.6. Carapace 3.00 long, 2.15 wide.
Prosoma. Carapace (Fig. 34) dark brown with narrow yellowish median band in thoracic part. Lateral bands hardly traceable or absent, anteriorly interrupted into spots. Thoracic part with short dark, recumbent pubescence. Clypeus yellowish, at least below ALEs, furnished with dark hairs. Chelicerae yellow to yellowish-brown with darker longitudinal veins, mesally yellow; furnished with dark hairs; retromargin with 2 teeth. Sternum dark greyish with narrow yellowish stripe anteriorly and furnished with light hairs.
Eyes. Width of row I 43 (slightly procurved when seen from in front), row II 67, row III 86, row II–III 65. Diameter of AME 10, ALE 8, PME 25, PLE 20. Distance between AMEs 7, between AME and ALE 2.
Opisthosoma. Dorsum (Fig. 34) brownish, anteriorly with light greyish-brown lanceolate stripe, followed by a series of transverse dark bars, each bar between a white-haired spot at each side. Between bars paired yellowish spots (often confluent), each spot with a dark dot in middle. Sides of dorsum with recumbent whitish pubescence. Venter brown with short light pubescence.
Legs (Table 1). Yellowish, outer segments with faint traces of darker annulation, Fe dorsally with sooty markings and ventrally with faint dark markings (pseudoannulation). Leg I without deviant pilosity. Ti I with 2 retrolateral spines.
Palp (Figs 37, 39, 41, 43, 46–47, 50–51, 77–80). Pt 0.60, Ti 0.60, Cy 1.30. Fe, Ti and Cy blackish, Pt mainly yellowish (sometimes, presumably in older specimens, partly suffused with black) (Figs 37, 39, 80). Fe (except apically), Ti and Cy with black hairs, apical part of Fe and Pt with short whitish pilosity (Pt in addition with some black hairs). Tegular apophysis stout, rugose, curved retrolaterad, with small hooked process at base (Fig. 51). Basally directed paleal process moderately curved (Figs 41, 46, 79). Terminal apophysis sclerotized, flattened, blunt at tip, pointing obliquely ventrad (Figs 43, 46–47). Embolus laminar, grooved along its length, ventral edge turned forward along two thirds of embolus length, then smoothly narrowing (Figs 46–47, 78–79).
Female (from Russia: Buryatia, Barguzin Range). Total length 7.0. Carapace 3.00 long, 2.30 wide.
Prosoma and opisthosoma (Fig. 35). Coloration lighter and pattern more contrasting than in the male. Carapace with bright yellow median band, wider than in male and continuing into postocular area; yellow lateral bands broken into distinct spots. Bands with whitish pubescence. Clypeus yellowish. Chelicerae yellowish with brown veins, furnished with dark and whitish hairs; retromargin with 2 teeth. Abdomen patterned as in male, lanceolate stripe and spots between dorsal dark bars yellowish; venter yellowish brown.
Eyes. Width of row I 45 (slightly procurved when seen from in front), row II 66, row III 85, row II–III 63. Diameter of AME 10, ALE 9, PME 25, PLE 20. Distance between AMEs 7, between AME and ALE 2.
Legs (Table 1). Yellowish with more distinct dark markings than in the male.
Epigyne (Figs 54–55, 57–58, 61–62, 65–66, 81–82): Septal ridge wide, extending approximately one-half epigynal length, anteriorly with two transversal pockets. Cavity wide, divided by widened septum. Lateral margins of epigynal plate deeply indented, clearly visible in dorsal view (Fig. 65, arrow).
Size variation. Carapace length: males 2.50–3.00 (n=10), females 2.60–3.30 (n=10).
Habitat. Dweller of sandy and pebbly shores around water bodies, river and creek banks, seashore, and talus.
Distribution (Fig. 117). Russia (Polar Ural to Chukotka), North America (Alaska to northern Quebec, south to northern New Mexico). Record from Kyren west of Irkutsk (Izmailova 1989) is doubtful because of close to the range of Pardosa logunovi sp. nov. Two previous records from the Russian Far East [the Ussuri Reserve in the Maritime Province (Šternbergs 1988) and Amur Area (Lobanova 1985)] are very likely based on misidentifications. The record from Inner Mongolia, China (Song et al. 1999) needs to be verified (only illustration of an epigyne given).
description: Published as part of Kronestedt, Torbjörn & Marusik, Yuri M., 2011, Studies on species of Holarctic Pardosa groups (Araneae, Lycosidae). VII. The Pardosa tesquorum group, pp. 1-34 in Zootaxa 3131 on pages 16-20, DOI: 10.5281/zenodo.399649