Descanso peregrinus Chickering, 1946

Galvis, William & Muñoz-Charry, Valentina, 2016, First record of the genus Descanso Peckham & Peckham, 1892 (Araneae: Salticidae) from Colombia, with a complementary description of D. peregrinus Chickering, 1946, Peckhamia 138 (1), pp. 1-6 : 2-5

Descanso peregrinus Chickering, 1946

Figs. 1-14

Descanso peregrinus Chickering, 1946: 435 , figs. 399-403 (male holotype from Fort Sherman , Canal Zone , Panama, deposited in the MCZ 22607; female allotype from Biological Area , Canal Zone , Panama, deposited in the MCZ 25799; and female paratype from Forest Reserve, Canal Zone, Panama, deposited in the MCZ 25872, all not examined); WSC 2016 .

Material examined. Colombia, Cundinamarca, La Mesa, Agroparque Mutis , [4.6309227°N, 74.4630146°W], [950 m], 21 Nov 2015, 1♂, 1♀ ( V. Muñoz & F. Cala-Riquelme, ANDESIN 2969) .

Diagnosis. Males of the species can be diagnosed by their hook-shaped retrolateral paracymbium with a retrolateral tibial apophysis, and long embolus ( Figs. 4-7 ). Females can be recognized by their wider and longer copulatory openings and the different conformation of their copulatory ducts ( Figs. 11-13 ).

Description of male. Total length: 2.80. Carapace black with whitish hairs and a patch of metallic-white scales between legs II-III, 1.36 long, 0.89 wide, 0.40 high ( Figs. 1-3 ). OQ black, 0.61 long. Anterior eye row 0.74 wide and posterior 0.89 wide. Sternum black, 0.49 long, 0.26 wide. Labium black, 0.73 long, 0.13 wide. Chelicerae dark brown with a fissidentated retromarginal teeth and two tiny promarginal teeth. Palp black with patellae to metatarsus white, with a hook-shaped paracymbium, retrolateral tibial apophysis, curved and long embolus ( Figs. 4-7 ). Legs 4132, all black to dark brown with coxae II and IV white, metatarsus-tarsus I, III-IV white, and tibia-metatarsus II white. Leg macrosetae: tibia, I v 2-2-2; II v 1 pr; III-IV v 0-0-1; metatarsus, I v 2-2; II v 1 me; III-IV v 0-0-1. Abdomen black with whitish hairs ( Figs. 1-2 ).

of white metalized scales. 4-5, Left palp, ventral view. 6, Same, prolateral

view. 7, Same, retroventral view. Scale, Figs. 1-2 : 0.50 mm, Fig. 3 : 0.25

mm, Figs. 4-7 : 0.10 mm.

Description of female. Total length: 3.08. Carapace black with whitish hairs and a patch of metallic-white scales between legs II-III, 1.49 long, 1.00 wide, 0.64 high ( Figs. 8-10 ). OQ black, 0.72 long. Anterior eye row 0.79 wide and posterior 1.00 wide. Sternum black, 0.55 long, 0.32 wide. Labium black, 0.82 long, 0.18 wide. Chelicerae dark brown with a fissidentate retromarginal tooth and two tiny promarginal teeth. Palp black with patella to metatarsus white. Legs 4132, all black to dark brown with coxae II and IV white, metatarsus-tarsus I, III-IV white, and tibia-metatarsus II white. Leg macrosetae: tibia, I v 2-2-2; II v 1 pr; metatarsus, I v 2-2; II v 1 me. Abdomen black with whitish hairs ( Figs. 8-9 ). Epigyne ( Figs. 11-13 ) with anterior, wide and anterior copulation openings, long copulatory ducts, slender and curved spermathecae, and anterior fertilization ducts.

cleared, dorsal view. 12-13, Same, cleared, ventral view. Scale, Figs. 8-9 : 0.50 mm, Fig. 10 :

0.20 mm, Figs. 11-13 : 0.05 mm.

Distribution. Colombia (Cundinamarca) and Panama (Canal Zone Biological Area) ( Fig. 14 ). Specimens of both sexes were collected together beating low scrubs at a low-dry Andean disturbed forest. This is a new record from Colombia, and a new altitudinal record, from 25-30 m to 950 m.

Comment. This is the first record of the species since its original description (see Chickering 1946).

Figures

Figure 14. Known distribution of Descanso peregrinus, with a new record from Colombia.

Figures 1-7. Descanso peregrinus male. 1, Habitus, dorsal view. 2, Same, lateral view. 3, Prosoma, lateral view, showing detail of the patch

Figures 8-13. Descanso peregrinus female. 8, Habitus, dorsal view. 9, Same, lateral view. 10, Prosoma, lateral view, showing detail of the patch of white metalized scales. 11, Epigyne,