Tapinotorquis, Dupérré, Nadine & Paquin, Pierre, 2007

Dupérré, Nadine & Paquin, Pierre, 2007, Description of five new spiders from Canada (Araneae: Linyphiidae), Zootaxa 1632, pp. 1-20 : 14-15

Tapinotorquis new genus

Type species. Tapinotorquis yamaskensis new species.

Diagnosis. The genus Tapinotorquis is distinguished from closely related genera of the Tapinocyba group (sensu Millidge 1977:15) by the combination of following characters: small spiders (0.98–1.09); tibia I–III with two dorsal macrosetae, tibia IV with one dorsal macroseta; metatarsus I with dorsal trichobothrium (Tm I 0.31–0.33); male cephalothorax unmodified; paracymbium flat, with large apical part, proximal part inconspicuous, bearing setae; sperm duct (SD) making a coil in the tegulum ( Fig. 38 ), and running through the upper portion of the distal part of the tegulum ( Fig. 42 ). Females are characterized by the copulatory openings situated on the upright slit of the ventral plate ( Fig. 43 ).

Distribution. Northeastern North America.

Etymology. Masculine genus. The stem: Tapino- refers to the close affinity of this genus to the Tapinocyba group defined by Millidge (1977) and the ending - torquis: a ring, refers to the form of the sperm duct in the tegulum of the male palp.

Figures

FIGURES 38 – 45. Tapinotorquis yamaskensis new species. 38, palpus of male, ventral view, arrow points to the sperm duct position in the distal part of the tegulum; 39, palpus of male, retrolateral view; 40, male palpal tibia, dorsal view; 41, expanded male palpus, schematic illustration; 42 male left palp (to allow comparison with the illustrations of Millidge 1977) retrolateral view, arrow points to the sperm duct position in the distal part of the tegulum; 43, epigynum, ventral view; 44, spermathecae, ventral view; 45, spermathecae, dorsal view. Scale bars = 0.05 mm. Abbreviations used as figures 1 – 9.