Allomicythus kamurai, Ono, Hirotsugu, 2009

Ono, Hirotsugu, 2009, Three New Spiders of the Families Clubionidae, Liocranidae and Gnaphosidae (Arachnida, Araneae) from Vietnam, Bulletin of the National Museum of Natural Sciences (A) 35 (1), pp. 1-8 : 6-7

Allomicythus kamurai sp. nov.

( Figs. 11-19 ) Diagnosis. See the above generic diagnosis.

T)pe specimen. Holotype: female from Duong Dong , ea. 40 m in elevation, Phu Quoc Island, southern Vietnam, 19-III-2008, H. Ono leg. ( NSMT-Ar 8351 ) .

Description (holotype). Measurement: Body length 5.39 mm; prosoma length 1.85 mm, width 1.52mm; opisthosoma length 3.39mm, width 2.03 mm; lengths of legs [total length (femur+ patella+ tibia+ metatarsus+ tarsus)]: I 4.64mm (1.40 + 0.78 + 0.96 + 0.90 + 0.60), 11 4.56 mm (1.35 + 0.75 + 0.90 + 0.93 + 0.63), Ill 4.09 mm (1.16 + 0.60 + 0.8 + 0.93 + 0.59), IV 5.75 mm (1.52 + 0.78 + 1.26 + 1.44 + 0.75).

Prosoma ( Fig. 11 ): Carapace longer than wide (length/width 1.22), flat and smooth with several strong hairs on both the sides behind eye area, median furrow distinct and long. Eyes ( Fig. 12 ): relatively large and compactly set, anterior eye row procurved and posterior eye row strongly procurvecl, all eyes almost same in size, but PME the smallest, PMA oval and not much modified, AME-AME<PME-PLE (17: 11), AME and ALE close to each other, PME-PME>PME­ PLE (17: 9), clypeus much shorter than the anterior width of median ocular area (5: 12), median ocular area longer than wide (length/width 1.15), wider behind than in front (anterior width/posterior width 0.92). Labium rectangular, slightly longer than wide (length/width 1.05), and widely marginated ( Fig. 13 ), sternum oval, much longer than wide (length/width 1.41). Chelicera not developed, furnished with three teeth on promargin of fang furrow and but no tooth on retromargin ( Fig. 14 ). Palp furnished with long spines on tibia and tarsus, scopula present on tarsus ( Fig. 15 ).

Legs: short and thick. Spination: Femora: I-IV dorsally 1-1-1, 1-11 prolaterally 0-0-1, III-IV pro- and retrolaterally 0-1-1; patellae: III-IV retrolaterally 1; tibiae: 1-11 ventrallyl-0-1, III-IV pro- and retrolaterally 1-1- or 0-1-1, ventrally 1-2-2 (apical); metatarsi: 1-11 spineless, III-IV prolaterally 0-1-1 (apical), retrolaterally 1-1- 0-1 (apical), Ill ventrally 2-0-2 (apical), IV ventrally 1-2-2 (apical). Both the sides oftibiae and metatarsi of legs 1-11 furnished with scopula. Leg formula: IV-1-11 -III.

Opisthosoma ( Fig. 11 ): large and relatively soft, longer than wide (length/width female 1.67), without dorsal scutum. Spinnerets ( Figs. 16-17 ): Anterior and posterior spinnerets cylindrical, hairs not modified, both the anterior spinnerets widely separated, thicker than the posterior ones, with a large pyriform spigot and two or more cylindrical spigots retracted, posterior spinnerets with some spiniform spigots, median spinnerets modified with five large spigots on proximal part of dorsal side.

Female genitalia ( Figs. 18-19 ): Epigynum with a pair of lateral furrows convergent in anterior part, genital openings situated in the middle, inner organ visible through integument; spermathecae in two parts connected by a short tube, the anterior ones globular and the posterior ones pyriform.

Coloration and markings: Carapace light yellowish brown, chelicerae and clypeus darker, maxillae, labium, sternum, palps and legs light yellowish brown; opisthosoma dorsally light grey without any markings, ventrally white, spinnerets light yellowish brown.

Distribution. Southern Vietnam (at present known only from the type locality).

Etymology. The new species is dedicated to Dr. Takahide Kamura, Osaka, Japan, who made efforts on gnaphosid spiders.

Remark. Male unknown.

Figures

Figs. 11 - 19. Allomicythus kamurai sp. nov, female holotype (NSMT-Ar 8351). - 11, Pro- and opisthosomata, dorsal view; 12, eyes, dorsal view; 13, chelicera, ventral view; 14, maxillae and labium, ventral view; 15, palp, retrolateral view; 16, spinnerets, dorsal view; 17, same, ventral view; 17, epigynum, ventral view; 18, internal genitalia, dorsal view. Scales: 1 mm (Fig. 11); 0.1 mm (Figs. 12 - 15, 18 - 19); 0.2 mm (Figs. 16 - 17).