Euophrys mapuche Galiano, 1968

Barry J. Richardson, 2010, A Review of the Jumping Spider Fauna (Araneae: Salticidae) of Chile, Zootaxa 2418, pp. 1-49 : 28

Euophrys mapuche Galiano, 1968

Figs 2 H, 3C, 66–72

Euophrys mapuche Galiano, 1968: 234 , figs 4–7, 12, 15, 19; Galiano and Maury, 1979: 310.

Material examined: CHILE: 23, Curico, El Coihue, 20km E Potrero Grande , 70.97°W, 35.18°S, 23 November 2003, J. E. BarrigaTunon et al. ( BJR1046 , CAS) ; 1♀, Curico, El Coihue, 20km E Potrero Grande , 70.97°W, 35.18°S, 26 March 2007, J. E. BarrigaTunon et al., fogging ( BJR984 , CAS) ; 16♀, 103, Cauquenes, Los Rules, 20km W Cauquenes , 72.35°W, 35.88°S, 1 October 2003, J. E. BarrigaTunon et al. ( BJR973 , CAS) .

Diagnosis: The species is distinguishable from the other species of Euophrys in Chile, except E. laetata , by its light, yellow colour and two longitudinal bands of orange hairs on the dorsal abdomen ending in two posterior black spots ( Figs 66–67 ). The broad wedge shape of the tibial apophysis of the palp and the morphology of the female genitalia, with the fossae touching in the midline, are distinctive ( Figs 68–69 ). The face and leg markings are also different to those in the other species ( Figs 2 H, 3C). This species can be separated from E. laetata by the presence of only two black spots on the abdomen, leg colouring and the shape of the epigynum.

Description. Male: Cephalothorax pale, yellow, not darker around lower margin. Surrounds of ALE, PME and PLE, black. Clypeus narrow, pale-yellow. Chelicerae ( Fig. 2 H) vertical, yellow with orange markings, with one promarginal tooth and one retromarginal tooth. Endites, labium sternum and ventral abdomen yellow. Dorsal abdomen pale yellow, elliptical with parallel light brown stripes made of hairs leading to a pair of black spots posteriorly ( Fig. 67 ). Spinnerets yellow. L1 dark brown with yellow areas patterned as in Fig. 3 C. The intensity of the brown varies from specimen to specimen. Femur with three dorsal and two distal dorsolateral spines. Patella with one pair of dorsolateral spines. Tibia and metatarsus with three and four pairs of ventrolateral spines, respectively. Colour patterns of L2 similar to L1. L3 and L4 have similar markings on the femur but legs plain yellow for the remainder. Similar spination on other legs to L1. Palp: cymbium dark brown with yellow tibia, tibia with distinctively wedge shaped apophysis ( Fig. 70 ). Tegulum with strong ventrolateral lobe, large embolus coiled anticlockwise. Dimensions: CL 1.84±0.03 (4), EFL 0.74±0.05 (4), CW 1.21±0.04 (4), AEW 1.17±0.05(4), AMEW 0.70±0.03 (4), PEW 1.17±0.02 (4), PEW 0.78±0.05 (4), (P4+T4 1.21±0.08 (4).

Female: Same as the male except all legs yellow. Epigynum ( Figs 68–69 ) sclerotised, with two anterior fossa oriented away from each other and with distinctive, well separated copulatory openings. Fossa guides touching in the midline. Insemination ducts medium length, spermathecae rounded. Dimensions: CL 1.80± 0.00, EFL 0.71±0.03 (3), CW 1.28±0.04 (3), AEW 1.14±0.04 (3), AMEW 0.73±0.02 (3), PEW 1.20±0.04 (3), SL 0.78±0.03 (3), (P4+T4) 1.18±0.06 (3).

Distribution: Known from scattered localities in both the coastal and Andean forests ( Fig. 72 ).

Figures

FIGURE 2. Male face patterns (semidiagramatic) in the genus Euophrys. Stippled areas are orange / mid-brown in colour, plain areas yellow, black areas are black or very dark brown. White or light grey pennate hairs are found in different patterns in different species. In each species there is some significant variation in the intensity of the colouring. Pattern unknown for E. saitiformis.

FIGURE 3. Semi-diagrammatic colour patterns of the first and fourth legs of males in the genus Euophrys. Light stippled areas are orange / mid-brown in colour, plain areas yellow, dark stipples areas are black or very dark brown. In each species there is some variation in the intensity of the colouring. L 4, left; L 1 right.

FIGURES 66 – 72. Euophrys mapuche. 66 – 67 dorsal view (66 female, 67 male); 68 – 69 female genitalia (68 dorsal view of cleared specimen, 69 ventral view of external characteristics); 70 – 71 male palp (70 ventral view, 71 lateral view); 72 known distribution. Scales: total body 1 mm; remainder 0.2 mm