Leproneta chilbosanensis, Kim & Yoo & Lee, 2016

Kim, Seung Tae, Yoo, Jung Sun & Lee, Sue Yeon, 2016, Two new species of the genus Leptoneta Simon, 1872 (Araneae: Leptonetidae) from Korea, Journal of Species Research 5 (3), pp. 596-600 : 4

Leproneta chilbosanensis sp. nov.

ṻflüḦ나ffiHŔ (ṳAE) ( Fig. 1 A­H)

Holotype. 1 male from Mt. Chilbosan , Hwaseong­si, Gyeonggi­do, Korea, (30 July 2005, ST Kim) ; Paratype. 2 male with same collecting data as holotype .

Etymology. The specific name refers to the type locality.

Diagnosis. Present new species is similar to Leptoneta kwangreungensis Kim et al., 2004 in general appearance, but can be distinguished by the shape and arrangement of cheliceral teeth, the shape of sternum, and the shape of embolus, conductor and lamina of male palpal bulb.

Measurements (in mm). Body length 1.56, AER 0.08, PER 0.11, ALE 0.05, PME 0.04, PLE 0.04, Carapace 0.70 × 0.61, Chelicera 0.37 × 0.17, Endite 0.28 × 0.15, Labium 0.07 × 0.10, Sternum 0.50 × 0.28, Abdomen 0.82 × 0.68. Legs: I, 4.53 (1.25, 1.47, 0.96, 0.85); II, 3.30 (1.03, 1.10, 0.71, 0.46); III, 2.74 (0.76, 0.89, 0.61, 0.48); IV 4.32 (1.21, 1.55, 0.95, 0.61). Palp 0.92 (0.48, 0.23, 0.21).

Description. Male: Carapace yellowish brown, ovoid, longer than wide; thoracic region dark yellowish brown, rimmed; cervical furrow distinct and radial furrow indistinct, fovea blackish brown, spiniform; clypeus gently elevated ( Fig. 1A ). Six eyes well developed protruding from the carapace surface; ALE and PLE closely spaced in semicircular pattern; PLE separated from each other and from PME by 0.16 and 0.50 times their diameter, respectively; PME separated from each other by 1.28 times their diameter; all eyes encircled with a narrow black line; axes of PLE converge posteriorly; PME contiguous and parallel; PER longer than AER ( Fig. 1B, C ). Chelicerae yellowish brown, longer than wide, weakly developed; promargin with 8 small denticles; numerous small warts between the both margins; covered sparsely with blackish brown long hairs ( Fig. 1D ). Endite yellowish brown; concaved medially. Labium yellowish brown. Sternum yellowish brown and mottled, longer than wide, convex; covered densely with blackish brown hairs; margin enclosed with blackish brown line ( Fig. 1E ). Legs pale yellowish brown; slender and weakly developed; tarsi fairly weak and flexible; covered densely with blackish brown hairs and spines; no particular pattern; leg formula 1­4­2­3. Abdomen dull grayish yellow, ovoid, longer than wide; posterior end almost straight; anterior end with several blackish brown long hairs; covered densely with blackish brown hairs; no particular dorsal pattern ( Fig. 1A ). Spinnerets tiny, pale and dull yellowish brown. Palp with short and pointed tibial apophysis; cymbium covered densely with long and thick spines; embolus short, beak shaped; conductor slightly curved; median apophysis long and slim, needle shaped; lamina twisted with pointed tip ( Fig. 1 F­H).

Distribution. Korea (Mt. Chilbosan, Hwanseong­si, Gyeonggi­do: 37°27′16″N, 126°93′69″E, 137 m altitude). Remarks. This species was collected with pitfall traps in the forest of mountain.

Figures

Fig. 1. Leproneta chilbosanensis sp. nov. A. body; B. eye area, dorsal view; C. eye area, lateral view; D. chelicera; E. Sternum; F. male palp, prolateral view; G. ditto, retrolateral view; H. ditto, dorsal view. Em, embolus; Co, conductor; Me, Median apophysis; La, Lamina. Scale bars; A. 1.0mm, B, C. 0.1 mm, D. 0.3 mm, E. 0.5 mm, F­G. 0.2 mm.