Amphidraus sikuani, Galvis, William, 2017

Galvis, William, 2017, Nineteen new species of Amphidraus Simon, 1900 (Salticidae: Euophryini) from Colombia, with comments about their conservation, Zootaxa 4286 (1), pp. 1-40 : 17

Amphidraus sikuani sp. nov.

Figs 10a–d , 17h–i , 22a–b , 25a, 25g , 26d , 27

Types. Holotype: male from Pozo Azul , Vereda La Vanguardia, Villavicencio, Meta, Colombia, 375 m [4.164320°N, 73.625789W], 16.IV.2005, unknown coll. ( ICN –Ar 6558) . Paratype: one female from Villa Lole , Vereda Apiay, Villavicencio, Meta, Colombia, 453 m [4.084531°N, 73.566513°W], E. Flórez & Estudiantes de Aracnología Universidad Nacional de Colombia ( ICN –Ar 7185).

Etymology. The epithet is a noun in apposition that honors the Sikuani , or Guahibo, indigenous people of the Guajiboan language family, which inhabits the region of the type locality.

Diagnosis. Males of A. sikuani sp. nov. are similar to those of A. guaitipan sp. nov. and A. tanimuca sp. nov. by the shape of the RTA. However, they can be recognized from those by the presence of a single bifurcated RTA, with the ventral and the dorsal lobes with the same proportion and shape ( Figs 10a–b , 22a–b ). Females of A. sikuani sp. nov. are similar to those of A. bochica sp. nov. and A. chie sp. nov. by their general disposition of internal structures of the epigyne, but can be distinguished from those by their longer copulatory ducts (cd), the presence of a single and medial pocket (po) on the posteriorly extended epigynal plate, and a posterior slender spermathecae ( Figs 10c–d , 25a, 25g ).

Description. Male (holotype). Total length: 2.43. Carapace yellow, 1.45 long, 1.01 wide, 0.78 high ( Fig. 17h ). OC black, 0.61 long. Anterior eye row 1.14 wide and posterior 0.91 wide. Sternum yellow, 0.54 long, 0.44 wide. Labium yellow, 0.10 long, 0.20 wide. Chelicerae yellow with black proximal side, with three retromarginal and two promarginal teeth. Palp brown with distal femur and patella with long white hairs, long embolic lamella (EL), and a bifurcated RTA, with its ventral and dorsal lobes with the same shape ( Figs 10a–b , 22a–b ). Legs 1342, I dark brown, II–IV yellow. Leg macrosetae: femur, I–II, IV d 1 di; III d 2 di; patella, III–IV r 1 me; tibia, I v 2-2 -2; II v 1- 2 -2, p 1 di; III–IV v 1 pr, p 1-0-1, r 1-0-1; metatarsus, I v 2-2; II v 2-2, p 1 di; III v 2 -0-1, p 1-0-2, r 1-0-2; IV v 1 -0- 1, p 1-0-2, r 1-0-2. Abdomen white with an uneven dark brown pattern of marks ( Fig. 17h ).

Female (paratype). Total length 2.50. Carapace yellow with some posterior black marks, 1.26 long, 0.91 wide, 0.60 high ( Fig. 17i ). OC black, 0.47 long. Anterior eye row 0.86 wide and posterior 0.78 wide. Sternum yellow, 0.48 long, 0.40 wide. Labium yellow, 0.15 long, 0.18 wide. Chelicerae yellow, with five tiny retromarginal teeth, and one promarginal tooth. Legs 4312, all yellow. Leg macrosetae: femur, II–III d 1 di; patellae, III–IV r 1 me; tibiae, I v 2-2 -2; II v 1-2 -2, p 1 di; III–IV v 1 me, p 1-1, r 1-1; metatarsus, I v 2-2; II v 2-2, p 1 di; III v 2-1, p 1- 0-2, r 1-0-2; IV v 1 pr, p 1-0-2, r 1-0-2. Abdomen gray, with a dark brown reticulated pattern of marks ( Fig. 17i ). Epigyne ( Figs 10c–d , 25a, 25g ), with anterior copulatory openings, short copulatory ducts and posterior slender spermathecae, with a rounded pocket in a posteriorly extended epigynal plate.

Comments. The holotype male was collected in a yellow tray trap, and the female paratype was collected manually in a rotten trunk in the soil, in a secondary lowland semi wet forest ( Fig. 26d ).

Distribution. Colombia (Meta) ( Fig. 27 ). Known altitudinal distribution: 375– 453 m.

Figures

FIGURES 10 a – f. A. sikuani sp. nov., a) left male palp, ventral view; b) same, retrolateral view; c) epigyne, cleared, ventral view; d) same, dorsal view. A. somondoco sp. nov., e) epigyne, cleared, ventral view; f) same, dorsal view. Abbreviations: cd = copulatory duct, co = copulatory opening, e = embolus, PED = process on emblic disc, ED = embolic disc, EF = embolic filament, EL = embolic lamella, fd = fertilization duct, po = epigynal pocket, RTA = retrolateral tibial apophysis of the male palp, SD = sperm duct, sp = spermatheca, TL = tegular lobe. Scale bars: 0.25 mm (a – b, e – f), 0.20 mm (c – d).

FIGURES 17 a – i. A. guatavita sp. nov., a) male holotype (ANDES – IN 3155). A. pae sp. nov., b) male holotype (ICN – Ar 6576). A. quimbaya sp. nov., c) male holotype (ICN – Ar 7746). A. quinini sp. nov., d) male holotype (ICN – Ar 8266); e) female paratype (ICN – Ar 8267). A. sie sp. nov., f) male holotype (ICN – Ar 8254); g) female paratype (ICN – Ar 8255). A. sikuani sp. nov., h) male holotype (ICN – Ar 6558); i) female paratype (ICN – Ar 7185). Scale bars: 0.50 mm.

FIGURES 22 a – k. Amphidraus spp, left male palp. A. sikuani sp. nov., a) ventral view; b) same, retrolateral view. A. sotairensis sp. nov., c) ventral view; d) same, retrolateral view. A. sua sp. nov., e) ventral view; f) same, retrolateral view. A. tisquesusa sp. nov., g) ventral view; h) same, retrolateral view. A. tanimuca sp. nov., i) ventral view of the bulb and cymbium; j) palp without cymbium to show the RTA, retrolateral view; k) same, prolateral view; l) same, ventral view.

FIGURES 25 a – l. Amphidraus spp, epigyne. A. sikuani sp. nov., a) ventral view; g) disposition of the internal structures. A. somondoco sp. nov., b) ventral view; h) disposition of the internal structures. A. sua sp. nov., c) ventral view; i) disposition of the internal structures. A. tundama sp. nov., d) ventral view; j) disposition of the internal structures. A. zaque sp. nov., e) ventral view; k) disposition of the internal structures. A. zipa sp. nov., f) ventral view; l) disposition of the internal structures.

FIGURES 26 a – d. Different altitudinal ecosystems where some of the species of Amphidraus here described were found in Colombia. a) Páramo ecosystem, at Las Lagunas Encantadas Natural Reserve, Duitama, Colombia, habitat of A. tundama sp. nov. (~ 3800 m); b) Andean wet forest at Cueva de los Guácharos National Natural Park, Huila, Colombia, habitat of A. guaitipan sp. nov. (~ 2000 m); c) Andean Oak forest (Quercus humboldtii) at Quinini Natural Reserve, Cundinamarca, Colombia, habitat of A. quinini sp. nov. (~ 1700 m); d) Secondary lowland semi wet forest on the outskirts of the city of Villavicencio, Meta, Colombia, habitat of A. sikuani sp. nov. (~ 500 m).

FIGURE 27. Distribution records of the species of the genus Amphidraus Simon from Colombia treated here. Symbols with a dot inside represent species that have distributions in the Cundiboyacense high-Andean plateau, in the Boyacá and Cundinamarca departments.