Pardosa pseudolaevitarsis, Kim & Yoo, 2019

Kim, Seung-Tae & Yoo, Jung Sun, 2019, Two newly recorded wolf spiders with one new species (Araneae, Lycosidae) from Korea, Journal of Species Research 8 (3), pp. 283-287 : 285

Pardosa pseudolaevitarsis n. sp.

Ŀṻljḥ1Hḍ (ṵḓ) (Fig. 1A- K)

Material examined. Holotype female and allotype male: Daean-ri , Haeryong-myeon, Suncheon-si, Jeollanam-do, Korea (34°54 ʹ 62 ʺ N, 127°31 ʹ 52 ʺ E), 06.iv.2019 (S. T. Kim) . Paratypes: one female, same collection data as holotype and allotype; 4 females and 4 males, Gagok-ri , Okcheonmyeon, Haenam-gun, Jeollanam-do, Korea (34°36 ʹ 68 ʺ N, 126°38 ʹ 93 ʺ E), 06.iv.2019 (S. T. Kim) .

Etymology. The specific epithet is a compound word from the Greek prefix pseudo - and the specific name of Pardosa laevitarsis Tanaka & Suwa, 1986 , referring to the similar structure of female internal genitalia.

Diagnosis. The present species is similar to P. laevitarsis in the shape of its epigyne and palp, but can be distinguished by the followings: epigynal atrium small; spermathecae extending to the end of atrium; shape, location and orientation of fertilization duct in epigyne and internal genitalia; blunt basal spur of median apophysis in palp; number, shape and arrangement cheliceral teeth on both margins.

Measurements (holotype female/ allotype male). Total length 6.15/5.45 (habitus). Carapace 2.90/2.50 long, 2.12/1.83 wide. ALE 0.06/0.05, AME 0.09/0.08, PLE 0.30/0.20, PME 0.35/0.25; ALE-AME 0.05/0.05, AME-AME 0.09/0.08. Chelicera 1.12/0.65 long, 0.40/0.32 wide. Endite 0.60/0.50 long, 0.39/0.30 wide. Labium 0.30/0.19 long, 0.30/0.32 wide. Sternum 1.31/1.20 long, 0.98/0.90 wide. Legs: I, 7.63/6.92 (2.30/2.00, 2.55/2.20, 1.68/1.60, 1.10/1.12); II, 7.25/7.20 (2.10/1.75, 2.40/2.35, 1.60/2.00, 1.15/1.10); III, 7.41/6.65 (2.10/1.85, 2.35/2.00, 1.90/1.80, 1.06/1.00); IV, 10.42/10.56 (2.32/3.40, 3.25/2.75, 3.45/2.93, 1.40/1.48). Palp 2.97/2.65 (0.95/0.80, 1.12/1.00, -, 0.90/0.85). Abdomen 3.45/2.70 long, 2.40/1.25 wide. Epigyne 0.28 long, 0.42 wide.

Description. Holotype female: Carapace blackish brown, oval, longer than wide, a yellowish brown median band and a pair of lateral stripes in thoracic region (Fig. 1A). Longitudinal fovea needle-shaped. AME larger than ALE, AME separated from each other by the diameter of AME, AME separated from ALE by about the diameter of AME, AER slightly recurved from frontal view (Fig. 1C). Clypeus yellowish brown with a pair of blackish brown markings. Chelicerae brown, dorsal and ventral surface infuscate with a black longitudinal band dorsally, 2 promarginal teeth and 2 retromarginal teeth, outer retromargial tooth and inner promarginal tooth larger and bifurcate (Fig. 1E). Endite pale yellowish brown. Labium blackish brown. Sternum round with pointed tip, reddish brown with blackish brown margin, longer than wide (Fig. 1D). Legs stout and strongly developed, yellowish brown, mottled, matatarsi and tarsi lighter. Abdomen ovoid, blackish brown, mottled, anterior part with cardiac pattern, no particular pattern visible, longer than wide (Fig. 1A). Epigyne with a pair of short atrium at middle, a pair of copulatory openings at lower part, median septum thick, spermathecae extend to the upper end of the atrium, spermathecal stalk thick, a pair of fertilization ducts with pointed tip at lower part (Fig. 1G, H).

Allotype male: Similar to female, smaller than female. Carapace black (Fig. 1B). Legs shorter and lighter than female. Chelicerae brown, dorsal and ventral surface infuscate with a black longitudinal band dorsally, 2 promarginal teeth and 2 retromarginal teeth, outer retromargial tooth and inner promarginal tooth larger and bifurcate (Fig. 1F). Palp with sock-shaped median apophysis bearing round basal spur (Fig. 1L), conductor broad, embolus filiform and curved counterclockwise direction, white pubescence on femur and patella, tarsus without prominent claw, palpal tibia shorter than tarsus, palpal tibia and tarsus black (Fig. 1I- K).

Distribution. Korea (endemic).

Remarks. This species was collected using a pitfall trap on a ridge between rice fields and seem to prefer habitats with relatively high humidity.