Euophrys rusticana ( Nicolet, 1849 )

Barry J. Richardson, 2010, A Review of the Jumping Spider Fauna (Araneae: Salticidae) of Chile, Zootaxa 2418, pp. 1-49 : 34-36

Euophrys rusticana ( Nicolet, 1849)

Figs 2 A, 3B, 89–95

Material examined: CHILE: 1♀, Quilpue , 71.45°W, 33.05°S ( MNHN) ; 5♀, 10km E Los Quenes , 70.80°W, 35.02°S, 10 March 2003, J. E. Barriga, fogging ( BJR993 , CAS) ; 1♀, 13, Curico, Cerro Hueca Hueca , 70.80°W, 35.02°S, 12 December 2003, J. E. Barriga ( BJR996 , CAS) ; 13, 10km E Los Quenes , 70.80°W, 35.02°S, 13 May, 2007, J.E. Barriga, fogging, Nothofagus forest ( BJR990 , CAS) ; 43, 6♀, 10km E Los Quenes , 70.80°W, 35.02°S, 13 May, 2007, J. E. Barriga, fogging, Nothofagus forest ( BJR1033 , CAS) ; 2♀, Curico, El Coihue, 20km E Potrero Grande , Chile, 70.97°W, 35.18°S, 28 September 2003, J.E. Barriga Tunon et al., fogging ( BJR975 , CAS) ; 13, Curico, El Coihue, 20km E Potrero Grande , 70.97°W, 35.18°S, 7 November 2003, J. E. Barriga Tunon et al., fogging ( BJR1054 , CAS) ; 1♀, Curico, El Coihue, 20km E Potrero Grande , 70.97°W, 35.18°S, 23 November 2003, J. E. Barriga Tunon et al., fogging ( BJR1050 , CAS) ; 13, Curico, El Coihue, 20km E Potrero Grande , 70.97°W, 35.18°S, 10 December 2003, J.E. Barriga Tunon et al., hand ( BJR980 , CAS) ; 1♀, 13, Curico, El Coihue, 20km E Potrero Grande , Chile, 70.97°W, 35.18°S, 18 Jun, 2004, E. Arias et al., fogging ( BJR979 , CAS) ; 2♀, Curico, El Coihue, 20km E Potrero Grande , 70.97°W, 35.18°S, 24 January 2007, J. E. Barriga, malaise trap ( BJR1053 , CAS) ; 3♀, Curico, El Coihue, 20km E Potrero Grande , 70.97°W, 35.18°S, 26 March 2007, J. E. Barriga Tunon et al., fogging ( BJR992 , CAS) ; 5♀, 53, Curico, El Coihue, 20km E Potrero Grande , 70.97°W, 35.18°S, 26 March 2007, J. E. Barriga Tunon et al., fogging ( BJR999 , CAS) ; 1♀, Curico, El Coihue, 20km E Potrero Grande , 70.97°W, 35.18°S, 27 May, 2007, J. E. Barriga Tunon et al., Nothofagus forest ( BJR972 , CAS) ; 1♀, 13, 1 imm., Talca, Altos de Vilches , 71.05°W, 35.62°S, 24 March 2005, E. Arias et al., fogging, Nothofagus forest ( BJR1015 , CAS) ; 1♀, Nahuelbuta NP, Pichinahuel Exit , 73.03°W, 37.80°S, 5 December 2001, E. Arias et al., fogging, Araucaria ( BJR1022 , CAS) ; 3♀, Res. Nacional Galletue (near), 71.32°W, 38.70°S, 7 March 2008, E. Arias et al., fogging ( BJR1083 , CAS) .

Diagnosis. The species is distinguishable from the other species of Euophrys in Chile by its pattern and the generally darker and ‘furry’ appearance of the abdomen ( Figs 89–90 ), the shape of the tibial apophysis of the male palp and the morphology of the female genitalia ( Figs 91–92 ). Can be separated from E. rapida by the tapered shape of the apophysis in the male. In females, there is heavy sclerotisation of the fossa guides and half the spermatheca extends beyond the posterior edge to the fossa. The face and leg markings are also different in the different species ( Figs 2 A, 3B).

Description. Male: Cephalothorax black with a dark orange area around the fovea ( Fig. 90 ). Surrounds of ALE, PME and PLE also black. Scattered white hairs on the sides with a patch on the posterior midline. Clypeus narrow, yellow with marked white fringe. Chelicerae ( Fig. 2 A) vertical, yellow, with two promarginal teeth and one retromarginal tooth. Endites fawn, labium and sternum dark brown. Abdomen fawn, elliptical with a distinctive pattern of black markings covering most of the abdomen ( Fig. 90 ). Spinnerets yellow with black markings. Ventral abdomen fawn with scattered black spots. L1 yellow or light brown with dark brown bands ( Fig. 3 B). Femur with three dorsal and three distal dorsolateral spines. Tibia and metatarsus with three and two pairs of ventrolateral spines, respectively. L2, L3 and L4 with colours and spine patterns similar to L1. Palp: mid-brown, tibia with distinctively shaped apophysis ( Figs 93–94 ). Tegulum with distinct ventrolateral lobe, embolus with slight anticlockwise curve, medium length. Dimensions: CL 2.07±0.06 (6), EFL 0.82±0.03 (6), CW 1.47±0.03 (6), AEW 1.35±0.03 (6), AMEW 0.83±0.03 (6), PEW 1.32±0.04 (6), SL 0.85±0.07 (6), (P4+T4) 1.43±0.08 (6).

Female: Same as the male except colours lighter, cephalothorax dark brown. Epigynum ( Fig. 89 ): partially sclerotised with two strongly sclerotised C-shaped lateral fossae oriented anteriorly and with well separated copulatory openings. Insemination ducts medium length not anterior to the fossae, spermathecae rounded, half posterior to the fossae. Dimensions: CL 2.18±0.17 (7), EFL 0.86±0.08 (7), CW 1.57±0.11 (7), AEW 1.38±0.09 (7), AMEW 0.89±0.06 (7), PEW 1.38±0.08 (7), SL 0.89±0.09 (7), (P4+T4) 1.50±0.13 (7).

Distribution. Widely distributed in both the coastal and Andean forests on Araucaria and Nothofagus trees ( Fig. 95 ). Also found on the Juan Ferdinand Islands ( Berland 1924). Replaced southwards from about Temuco by E. rapida .

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 89 – 95. Euophrys rusticana. 89 – 90 dorsal view (89 female, 90 male); 91 – 92 female genitalia (91 dorsal view of cleared specimen, 92 ventral view of external characteristics); 93 – 94 male palp (93 ventral view, 94 lateral view); 95 known distribution. Scales: total body 1 mm; remainder 0.2 mm