Pseudicius dapoensis 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 : 26

Pseudicius dapoensis Barrion, Barrion-Dupo & Heong , new species [ Figure 28 A-E]

MALE. Holotype male, total length 5.10mm. Cephalothorax length 2.50mm, width 1.50mm, height 1.10mm.Abdomen length 2.60mm, width 1.50 mm.

Carapace. About 1.66x longer than wide, 2.3x longer than height, uniformly black except white hairs lining the margins of the clypeus, lower margins of AME and a yellow upcurved setae in the midclypeus. Chelicerae unidentate, promargin with 2 teeth, 4.4x longer than wide, black similar sternum, labium and maxillae.

Eyes. AE row (1.53mm)> PLE (1.44)> PME (1.34). Eye diameter (mm): AME (0.43)> ALE = PLE (0.27)> PME (0.07). Eye separation: AME- AME= AME-ALE (0.07), ALE-PME (0.33), PME- PLE = (0.17). Clypeus height about one-half AME diameter.

Legs. Femora I-IV moderately broadest medially.Tibia IV spination 1-3-3-3, dorsal tibia IV with a thin, long subapical bristle. Leg formula 4312.

Abdomen ovate, uniformly black with a pair of crescent-shaped, yellow spots medially, 1.73x longer than wide and as wide as cephalothorax.

Palpal organ with a large bluntly-pointed conductor and ventrally hooked embolus both projected at 10 o’ clock, base of tegulum pointed and hooked viewed ventrally, RTA simple, and pointed apically and sharply upcurved with 2 long white spines at its base.

FEMALE. Unknown.

Material Examined. Holotype male (coll. no. Dap 24), CHINA, Hainan Is. Dapo, Dapo Village, Ex. pepper plantation, 25 March -0 9 April 2011, AT Barrion, JLA Catindig and SC Villareal.

Diagnostic Features. This new species is similar to Pseudiciushimeshimensis (Doenitz & Strand, 1906) by structure of the palpal organ but differs from the latter in the following features: (1) posterior tegulum with unequal protuberances, (2) conductor prominently large with bluntly rounded tip and embolus thin distinctly separated dorsad of conductor both projected at 10 o’clock, (3) RTA prominently upcurved with sharply pointed tip and two long white bristles arise at its base, and (4) ovate abdomen with a pair of crescent shape yellow median spots.

Etymology. Named after the type locality.

Figures

Figure 28 A-E. Pseudicius dapoensis Barrion, Barrion-Dupo & Heong, new species, holotype male (A), ventral (B) and retrolateral (C) views of palpal organ, embolus, conductor, and tegular apophysis (D) and RTA (E).