Diponeura bukolana Barrion, Barrion-Dupo & Heong

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 : 36-37

Diponeura bukolana Barrion, Barrion-Dupo & Heong , new species [ Figure 41 A-H]

MALE. Holotype male, total length 1.80 mm. Cephalothorax length 0.80 mm, width 0.71 mm. Abdomen length 1.00 mm, width 0.83 mm. Paratype male, total length 1.76 mm.

Carapace. Black with lustrous eyes. Cephalic width about 0.62x thoracic width. Chelicerae dark reddish brown, longer than wide. Pedipalp brownish yellow with dark brown cymbium. Maxillae dark brown with converging apices. Labium black, narrowed apically and wider basally. Sternum dark reddish brown, longer than wide with bluntly rounded posterior end.

Eyes. In two recurved rows, strongly recurved AER slightly shorter than weakly recurved PER. Eye diameter (mm): AME (0.11)> PME (0.10)> PLE (0.09)> ALE (0.07). AME closer to ALE than to each other. PME closer to each other than to PLE. Clypeus height wide, 1.27x AME diameter.

Legs. Brown with alternating yellow and brown bands in femora, tibiae and metatarsi. Tibia II as long as metatarsus II. Tarsus I and II subequal. Leg formula 1423.

Abdomen. Subglobose black with two pairs of white eye-like spots anterior of the posterodorsal humps, posterior pair of humps as broad as the front pair. Venter black with white dots encircling base of spinnerets and two triangular white spots on lateral ends of epigastric furrow.

Palpal organ with conductor perpendicularly set anteriorly and apically rounded at tip, median apophysis shoes-like with bluntly rounded tip, truncated middle arm and a small posteroventral tooth visible viewed laterally. Apical end of median apophysis obliquely truncated and sharply pointed viewed on top (dorsally). Apex of cymbium convex except the margin slightly upcurved.

FEMALE. Unknown.

Material Examined. Holotype male (coll. no. Da2), CHINA, Hainan Island, Danzhou, Danzhou Agricultural Station, 4 April 2011, ATBarrion, JLACatindig and SCVillareal. Paratype male (coll. no. Da3), same data as for holotype.

Diagnostic Features. This new species is distinguished from its close relative Diponeura cyclosoides (Simon, 1894) in the following characters, namely, (1) black abdomen with small white spots, (2) equal sizes of posterior humps, (3) shape of conductor and median apophysis, and (4) tibia II as long as metatarsus II.

Etymology. The specific epithet is derived from the humpy ("bukolan") appearance of posterior abdomen in Tagalog.

Figures

Figure 41 A-H. Diponeura bukolana Barrion, Barrion-Dupo & Heong, new species, holotype male (A), humps on posterior abdomen (B), palpal organs (C, D), conductor and embolus (E), tip (F), lateral (G) and top (H) views of median apophysis.