Jotus braccatus L. Koch, 1881

Baehr, Barbara C., Schubert, Joseph & Harms, Danilo, 2019, The Brushed Jumping Spiders (Araneae, Salticidae, Jotus L. Koch, 1881) from Eastern Australia, Evolutionary Systematics 3 (1), pp. 53-73 : 53

Jotus braccatus L. Koch, 1881 Figs 5 A–E, 6 A–F, 12D, 13B, 14 Gayndah Brushed Jumping Spider

Jotus braccatus L. Koch, 1881a: pp. 1254-1256, pl. 107, figs 6-6c, 7-7e.

Material examined.

Lectotype male: AUSTRALIA: Queensland, Gayndah [ca. 25°37'S, 151°36'E] (ZMH-A0001634; GODEFFROY Nr. 8633); paralectotype female: same data (ZMH-A0001634; GODEFFROY Nr. 8633); 5 paralectotypes (MV, GODEFFROY Nr. 8633); coll. A. Dietrich.

Diagnosis.

Males of J. braccatus differ from congeners by the long, slim femur I (0.25 as wide as long), the dense field of orange setae on prolateral section of leg I (Fig. 13B), the embolic disc as wide as long and with a smooth and narrow rim, and the embolus with a broad tip (Fig. 12D).

Description.

Male (Lectotype ZMH-A0001634).

Total length 4.2.

Prosoma. Length 2.4, width 1.7; carapace dark brown, lateral margin with white setae, separated by dark medium part (Fig. 5A); sternum length 0.9, width 0.7, pale (Fig. 5B).

Eyes (Fig. 5A). Diameter of AME: 0.51; ALE: 0.34; PME: 0.2; PLE: 0.1.

Eye rows (Fig. 5A). Anterior 1.66 wide, posterior 1.58 wide.

Clypeus. Length 0.09.

Chelicerae. Dark brown, paturon with 0 prolateral and 1 retrolateral tooth.

Labium. Pale brown, with lighter anterior rim (Fig. 5B)

Endites. Pale brown, with lighter anterior rim (Fig. 5B).

Legs. Leg I with long, slim Femur I, 0.25 as wide as long and the dense field of orange setae on prolateral part, tibia and metatarsus I with long dark setae prolaterally (Fig. 13B); all tarsi white.

Opisthosoma. Length 1.8, width 1.4; deteriorated, no pattern visible anymore (Fig. 5A). Venter and spinnerets pale (Fig. 5B).

Pedipalps (Figs 5 C–E, 12D). Palpal tibia as long as broad with ventral bulge and slightly s-shaped triangular retrolateral tibial apophysis, bent at tip (Fig. 5E); cymbium oval, covered with long setae, tip stout with distal scopula. Embolic disc as wide as long, with smooth, narrow rim, embolus with broad tip and semicircular conductor (Fig. 5D arrow).

Female (Paralectotype ZMH-A0001634).

Total length 4.1.

Prosoma. Length 2.5, width 1.7; no pattern visible (Fig. 6A); sternum length 1.0, width 0.7, pale (Fig. 6B).

Eyes (Figs 6A, C). Diameter of AME: 0.45; ALE: 0.34; PME: 0.30; PLE: 0.08.

Eye rows (Fig. 6A). Anterior 1.72 wide, posterior 1.62 wide.

Clypeus (Fig. 6C). Length 0.1.

Chelicerae. Pale, paturon with 2 prolateral and 1 retrolateral teeth.

Labium. Pale, with lighter anterior rim (Fig. 6D)

Endites. Pale, with lighter anterior rim (Fig. 6D).

Legs. Legs pale brown (Fig. 6A).

Opisthosoma. Length 1.6, width 1.8; no pattern visible (Fig. 6A). Venter and spinnerets pale (Fig. 6B).

Epigyne (Figs 6E, F) with semicircular windows and a medium septum (Fig. 6E arrow), primary and secondary spermatheca circular, about the same size (Fig. 6F arrows).

Distribution.

Only known from the type locality (Fig. 14).

Remarks.

See Jotus auripes . Koch described this species from multiple males and females but Museum Godeffroy broke up the type series through the sale of duplicate specimens. Amalie Dietrich collected these specimens on behalf of the Museum Godeffroy. The MV specimens carry the access label "Recd: 25.2.88". We fix the illustrated male as the lectotype in the type series that comprises several specimens that were most likely collected at a common locality.