Corinnomma yulinguana Barrion

Alberto T. Barrion, Aimee Lynn A. Barrion-Dupo, Josie Lynn A. Catindig, Sylvia C. Villareal, Ducheng Cai, Qianhua Yuan & Kong Luen Heong, 2016, NEW SPECIES OF SPIDERS (ARANEAE) FROM HAINAN ISLAND, CHINA, UPLB Museum Publications in Natural History 3, pp. 1-103 : 10-11

Corinnomma yulinguana Barrion , Barrion- Dupo & Heong, new species [ Figure 10 A-D] 10 FEMALE. Holotype female, total length 9.80 mm. Cephalothorax length 4.30 mm, width 2.50 mm. Abdomen length 4.80 mm, width 3.60 mm.

Carapace. Smooth and uniformly black, 1.72x longer than wide. Cephalic area parallel-sided and distinctly narrower than the thoracic area. Black and relatively robust chelicerae longer than wide and bear two teeth each in the promargin and retromargin. Pedipalps slender, yellow with brownish tarsus. Apical half of tarsus stouter than the posterior half. Maxillae reddish brown with yellow bases of brownish scopulae, longer than wide, inner margins concave and apices projected anteriorly. Labium slightly longer than wide, dark brown with yellow truncate apical margin. Sternum black, heart-shaped with bluntly rounded posterior tip, median area clothed with white hairs.

Eyes. In two rows of four. AER recurved and shorter than slightly procurved PER (0.91: 1.11 mm). Eye diameter (mm): AME (0.20)> PME (0.17)> PLE (0.16)> ALE (0.13). Eye separation (mm): AME-AME (0.14), AME-ALE (0.06), PME- PME (0.27), PME-PLE (0.17), ALE-PLE (0.11). Clypeus height as along as one AME diameter.

Legs. Relatively long and slender. Femora I, II and III glossy black with yellow longitudinal bands on anterior ends. Femur IV uniformly black. Patella I-II and tibiae I and II yellow. Metatarsus I, tarsus I, patellae to tarsi of legs II and IV brownish yellow. Patella IV and anterior ends of tibia IV brown. Leg formula 4123.

Abdomen. Black and globose with U-shaped wrinkles and ridges lining entire lateral margins of abdomen. Generally looks like a small dried black seed. Cardiac area smooth and forms a subquadrate plate. Posterior end strongly rounded.

Epigynum

has

a

prominently

bell-shaped

marginal band. Spermathecae foot-like and diverging posteriorly. Insemination ducts oblongly coiled sidewards.

MALE. Unknown.

Material Examined. Holotype female (coll. no. Yu 9), holotype female (coll. no. Yu 9), CHINA, Hainan Island, Jianfenling, Yulingu , 31 March-1 April 2011, ATBarrion, JLACatindig and SCVillareal.

Diagnostic Features. Closely resembles C. thorelli Simon, 1905 from West Java but differs from the latter in (1) dorsal spines present in tibia I and II, (2) longer body and legs, (3) AME 1.54x larger than ALE only, (4) spermathecae diverging posteriorly, and (5) wrinkled seed-like abdomen.

Etymology. Named after the type locality.

Figures

Figure 10 A-D. Corinnomma yulinguana Barrion, Barrion-Dupo & Heong, new species, holotype female (A), dorsal tip of tibia I (B), ventral view of epigynum (C) and dorsal view of right portion of epigynum (D).