Phoroncidia altiventris Yoshida, 1985

Seo, Bo Keun, 2018, New species and records of the spider families Pholcidae, Uloboridae, Linyphiidae, Theridiidae, Phrurolithidae, and Thomisidae (Araneae) from Korea, Journal of Species Research 7 (4), pp. 251-290 : 285

Phoroncidia altiventris Yoshida, 1985

Ṟǵ꼬ṘHḑ (ṉÿ) ( Fig. 19 A-E)

Phoroncidia altiventris Yoshida, 1985: 8 ; Yoshida, 2009: 365.

Material examined. ♂, mixed forest (34°47 ʹ 49 ʺ N, 128°28 ʹ 40 ʺ E, alt. 82 m), Hansan-myeon, Tongyeong-si , Gyeongsangnam-do, 25 June 2005, B. K. Seo .

Diagnosis. This species is easily distinguished from its congeneric species by the shape of abdomen and male palpal structure ( Fig. 19 A-E).

Description. Male. Total length 1.96. Habitus as in Figures 19 A-C. Carapace dirty brown, 1.04 long, 0.80 wide. Clypeus height 1.6 times of diameter of AME. AER 0.52, PER 0.53. AER and PER recurved in dorsal view. AME 0.10, ALE 0.07, PME 0.09, PLE 0.08, AME-AME 0.10, AME-ALE 0.10, PME-PME 0.10, PME-PLE 0.18, AME-PME 0.08, and ALE-PLE 0.01. Median ocular quadrangle, anterior side>height = posterior side (21:20). Chelicera with one retromarginal and three promarginal teeth. Sternum 0.49 long, 0.53 wide. Labium 0.18 wide. Leg measurements: I 2.60 (0.92, 0.35, 0.57, 0.40, 0.36), II 2.42 (0.83, 0.34, 0.52, 0.39, 0.34), III 1.84 (0.60, 0.27, 0.36, 0.30, 0.31), IV 2.21 (0.73, 0.31, 0.47, 0.36, 0.34). Leg I/c 2.50. Fem. I/c 0.88. Tib. I/c 0.55. Met. I/c 0.38. Pat. I + tib. I/c 0.88. Met. I/tar. I 1.11. Met. IV/tar. IV 1.06. Abdomen flat with many protuberances, and 1.08 long, 1.38 wide. Palp ( Fig. 19 D-E): cymbium with a small curved proximal process retrolaterally; subtegulum well developed; tegular apophysis with stout pointed tip; median apophysis short and pointed; long curved suprategula apophysis in touch with embolus; conductor membranous.

Habitat. Mixed forest.

World Distribution. Korea (Gyeongsangnam-do), Japan.

Deposition. NIBR.

Identifier. Bo Keun Seo.

Figures

Fig. 19. Phoroncidia altiventris Yoshida, 1985 (A-E) and Theridula iriomotensis Yoshida, 2001 (F-J): A - male, frontal view; B - idem, lateral view; C - posterior view; D, G - male left palp, retrolateral view; E, H - idem, prolateral view; F - male habitus; I - idem, ventral view; J - promarginal teeth of chalicera. Scale bars: 0.5 mm (A-C), 0.1 mm (D-J).