Chapoda angusta, Zhang, Jun-Xia & Maddison, Wayne P., 2012

Zhang, Jun-Xia & Maddison, Wayne P., 2012, New euophryine jumping spiders from Central and South America (Araneae: Salticidae: Euophryinae), Zootaxa 3578, pp. 1-35 : 5-7

Chapoda angusta sp. nov.

Figs 14–21

Type material. Holotype: male, ECUADOR: Pichincha : near Puerto Quito, km 113 on road from Quito, ENDESA Campamento Maderero, 0.083° N, 79.117° W, 9–12 July 1988, coll. W. Maddison, WPM#88–014 (UBC-SEM AR00137, QCAZ). Paratypes: 1 female, same data as holotype (UBC-SEM AR00138); 6 males and 4 females, same data as holotype.

Etymology. Latin adjective angusta (narrow), referring to the narrow retrolateral sperm duct loop of the male palp.

Diagnosis. Differs from previously described species by the presence of an obvious proximal tegular lobe ( Fig. 16 ) and the absence of modification on the femur or/and patella of the male palp. Similar to Chapoda gitae and C. fortuna in the presence of a proximal tegular lobe on the male palp, but differs from them in the scale-like markings on the abdomen ( Figs 14–15 ) and the narrower retrolateral sperm duct loop of the male palp ( Fig. 16 ). This species can also be distinguished from C. gitae by the wider embolic spiral of the male palp ( Fig. 16 ); and from C. fortuna by the absence of a ventral process on the femur of the male palp.

Description. Male (holotype, UBC-SEM AR00137). Carapace length 1.4 (variation 1.3–1.4, n=7); abdomen length 1.3. Chelicera: yellow brown; promargin with two teeth, retromargin with one tooth. Palp ( Figs 16–17 ): yellowish brown. Proximal tegular lobe distinct; embolus short and slightly curved; retrolateral tibial apophysis finger-like; ventral tibial bump small. Measurements of legs: I 2.6, II 2.4, III 2.8, IV 3.1. Color in alcohol ( Fig. 14 ): carapace red brown, lateral and posterior margins covered with white scales, PMEs and PLEs with dark surroundings; abdomen sandy yellow with white scale-like markings, anterior end gray brown; legs yellowish to reddish brown.

Female (paratype, UBC-SEM AR00138). Carapace length 1.5 (variation 1.4–1.6, n=5); abdomen length 2.4. Chelicera ( Fig. 19 ): with two promarginal teeth and one retromarginal tooth. Measurements of legs: I 2.7, II 2.6, III 3.2, IV 3.2. Epigynum ( Fig. 20 ): epigynal window relatively small and median septum wide; opening to copulatory duct at posterior end of window. Vulva ( Fig. 21 ): copulatory duct swollen near the beginning forming a secondary spermatheca; primary spermatheca relatively long and oval. Color in alcohol ( Fig. 15 ): similar to that of male, but carapace and legs lighter in color.

Figures

FIGURES 14 – 21. Chapoda angusta sp. nov. 14 male paratype, dorsal view; 15 female paratype, dorsal view; 16 male left palp, ventral view; 17 male left palp, retrolateral view; 18 female carapace, lateral view; 19 female left chelicera, back view; 20 epigynum, ventral view; 21 cleared epigynum, dorsal view. Scale bars: 14 – 15, 0.5 mm; 16 – 21, 0.2 mm.