Synaphosus dubius, Marusik & Omelko, 2018

Marusik, Yuri M. & Omelko, Mikhail M., 2018, New data on Synaphosus (Araneae: Gnaphosidae) from Southeast Asia, Zootaxa 4374 (2), pp. 235-248 : 246-247

Synaphosus dubius sp. n.

Figs 46‒49, 51 , 54

Type. Holotype ♀ ( ZMUT) THAILAND, Chiangmai Province , Doi Suthep, dry forest slope, 16.11 ‒ 30.12.1976 (P.T Lehtinen, R. Laine). Holotype in poor condition without legs.

Etymology. The specific name dubius (=doubtful, uncertain) refers to the unclear belonging of the species.

Diagnosis. This new species clearly differs from all congeners and even from all Gnaphosidae by having a very long, stick-like and inflexible scape.

Description. Female. Total length 2.53. Carapace: 1.13 long, 0.65 wide. Chelicera with 4 retrolateral teeth and seemingly with 2 or 3 prolateral teeth (not well visible due to small size and being hidden by setae ( Fig. 51 ). Epigyne as in Figs 46‒49 ; epigynal plate about 2 times longer than wide, fovea absent, with long, thin inflexible scape (Sc), bearing small dorsal pit (Ps) at the tip, scape embedded in shallow longitudinal hollow (Lh), copulatory openings (Co) slit like, widely spaced; insemination ducts (Id) broad, first diverging anteriorly, then converging and touching each other, posterior 2/3 of ducts twisted/coiled along longitudinal axis forming 6 loops; receptacles tubular, not distinct from insemination duct.

Note. We placed this species in Synaphosus because of the similarity in insemination ducts forming coils/ loops, as in S. femininis and S. jaegeri sp. n.

Distribution. The species is known from the type locality only.

Figures

FIGURE 54. Distribution records of Synaphosus species in Southeast Asia. Filled symbols refer to our records and open symbols refer to the literature records.

FIGURES42‒48.Male palp of Synaphosus evertsi (42‒45) and epigyne of S.dubius sp. n. (46‒48).42‒45 male palp, ventral, retrolateral, prolateral and dorsal; 46 intact epigyne, ventral; 47‒48 macerated epigyne, ventral and dorsal. Scale = 0.2 mm. Abbreviations. C1 subprolateral outgrowth, C2 retrolateral outgrowth, C3 prolateral outgrowth, Co copulatory openings, Eb baso-dorsal outgrowth,Id insemination ducts, Ps dorsal pit, Sc short scape, Th tibia hollow.

FIGURES 49‒53. Epigynes and chelicera of Synaphosus dubius sp. n. (49, 51) and S. lehtineni sp. n. (50, 52‒53). 49, 50 epigyne, ventral; 51 left chelicera, meso-ventral; 52‒53 macerated epigyne, dorsal. Scale = 0.2 mm if not otherwise indicated. Abbreviations. Ar anterior receptacles, Co copulatory openings, Lh longitudinal hollow, Re receptacles, Sc short scape, Se septum.