Soesilarishius cymbialis, Ruiz, 2011

Ruiz, Gustavo Rodrigo Sanches, 2011, Systematics of the genus Soesilarishius (Araneae: Salticidae: Euophryinae), Zootaxa 3022 (1), pp. 22-38 : 28-30

Soesilarishius cymbialis sp. nov.

Figs 15–21 , 49–50

Type material: Holotype: male from Campo de Instrução Marechal Newton Cavalcante , Araçoiaba, Pernambuco, Brazil, 7º46’55”S, 35º09’02”W, 2009–2010, A.A. Costa ( IBSP 160725 ) . Paratypes: 1 male and 2 females, same data as holotype, IBSP 160737 , 160728 , 160726 , and 1 male and 1 female, same data as holotype, UFPE .

Additional material examined. BRAZIL: Pernambuco: 6 males and 15 females, Araçoiaba, Campo de Instrução Marechal Newton Cavalcante , 2009–2010, A.A. Costa ( IBSP 160727 , 160729–160736 , 160738–160739 , UFPE) ; 31 males and 14 females from Caruaru 2009–2010, H.P. Amorim ( IBSP 160523–160546 , UFPE) .

Etymology. The specific epithet is to be treated as an adjective and refers to the elongate cymbium of the male.

Diagnosis. Males of this species can be distinguished from those of all the remaining known species by having a long cymbium in the palp ( Figs 16–17 ). Females can be distinguished from those of the remaining species by having a pair of small spermathecae, with the diameter not wider than twice that of the copulation ducts ( Figs 18– 19 ).

Description. Male holotype: Total length: 2.70. Carapace light brown, 1.55 long, 1.12 wide, 0.85 high, with cephalic region black ( Figs 20 , 49–50 ). Ocular quadrangle 0.90 long. Anterior eye row 1.20 wide and posterior 1.00 wide. Chelicera yellow, with a fringe of external long setae ( Fig. 15 ). Labium and sternum yellow. Endite yellow, slightly projected laterally. Palp yellow, with a short and ventrally curved RTA, long cymbium, round tegulum with a distal retrolateral projection and a distal, straight embolus ( Figs 16–17 ). Legs 1342, yellow. Length of femur: I 0.95, II 0.77, III 1.02, IV 0.85; patella + tibia: I 1.17, II 0.90, III 1.00, IV 0.90; metatarsus + tarsus: I 0.90, II 0.80, III 0.97, IV 1.05. Spination: femur I–III d1-1-1, IV d1-1-1, r0-0-1; patella I p1, II 0, III–IV p1, r1; tibia I v2-2-2 (proportion similar to that described for S. albipes sp. nov., see Fig. 62 ), II v2-2-2, p1-1, r0-1, III v1p-0-0, p1-1, r1-1, IV v1p-0-0, p1-1, r1-1; metatarsus I v2-2, II v2-2, p1-1, r0-1, III v2-2, p1-2, r1-2, IV v1p-2, p1-2, r1-1- 2. Abdomen pale, dorsally with a complex pattern of pairs of dark brown marks ( Fig. 20 ). Spinnerets yellow.

Female (paratype IBSP 160726): Total length: 3.00. Carapace dark brown, 1.60 long, 1.15 wide, 0.77 high, with the black cephalic region surrounded by a yellow border ( Fig. 21 ). Ocular quadrangle 0.87 long. Anterior eye row 1.20 wide and posterior 1.05 wide. Chelicera dark brown, with no fringe. Labium, sternum, endite and palp light brown. Legs 3412; I and II light brown, prolaterally and retrolaterally dark brown, especially the retrolateral femora; metatarsi and tarsi I–IV with no dark sides; femora III–IV yellow, with ventral and retrolateral sides dark brown; patella and tibia III as in I–II; patella and tibia IV with a dark brown mark on their distal, dorsal portions. Length of femur: I 0.90, II 0.80, III 0.97, IV 0.87; patella + tibia: I 1.10, II 0.87, III 1.02, IV 0.95; metatarsus + tarsus: I 0.85, II 0.80, III 1.00, IV 1.12. Spination: femur I–III d1-1-1, p0-0-1, IV d1-1-1, r0-0-1; patella I p1, II 0, III– IV r1; tibia I v2-2-2 (proportion similar to that described for S. albipes sp. nov., see Fig. 63 ), II v2-2-2, p1-1, III v1p-0-0, p1-1, r1-1, IV v1p-0-0, p1-1, r1-1; metatarsus I v2-2, II v2-2, p1-1, III v2-2, p1-2, r1-2, IV v1p-2, p1-2, r1-2. Abdomen dorsally dark brown, variegated, with barely conspicuous median chevrons ( Fig. 21 ); ventrally pale. Epigyne with anterior, circular copulation openings, copulation ducts with scent glands extending towards the center and backwards, and small posterior primary spermathecae with pores of nutritive glands on walls, beside which the fertilization ducts arise ( Figs 18–19 ). Spinnerets yellow.

Variation. Carapace length: 1.475–2.12 (males, n=40), 1.60–2.10 (females, n=32). Some females have yellow legs as males and some males have longer cymbia than that illustrated.

Distribution. Known only from the State of Pernambuco, Brazil.

Biological note. The specimens mentioned above were collected from the ground using pitfall traps.

Figures

FIGURES 15–19. Soesilarishius cymbialis sp. nov. 15 male chelicerae and front eyes, anterior view; 16–17 left male palp (16 ventral, 17 retrolateral); 18 epigyne, ventral view; 19 vulva, dorsal view.

FIGURES 20–23. Soesilarishius cymbialis sp. nov. 20 male habitus (paratype IBSP 160737); 21 female habitus (paratype IBSP 160728). Soesilarishius lunatus sp. nov. 22 male habitus (paratype IBSP 160756); 23 female habitus (paratype IBSP 160757).

FIGURES 45–59. Soesilarishius minimus sp. nov. 45–46 male carapace (45 dorsal, 46 lateral); Soesilarishius crispiventer sp. nov. 47–48 male carapace (47 dorsal, 48 lateral); Soesilarishius cymbialis sp. nov. 49–50 male carapace (49 dorsal, 50 lateral); Soesilarishius lunatus sp. nov. 51–52 male carapace (51 dorsal, 52 lateral); Soesilarishius spinipes sp. nov. 53–54 male carapace (53 dorsal, 54 lateral); Soesilarishius albipes sp. nov. 55–56 male carapace (55 dorsal, 56 lateral); Soesilarishius dromedarius sp. nov. 57–58 male carapace (57 dorsal, 58 lateral); Soesilarishius crispiventer sp. nov. 59 male abdomen, ventral view.

FIGURES 60–65. Soesilarishius lunatus sp. nov. 60 male leg I, prolateral view, showing ventral spines; 61 female leg I, prolateral view, showing ventral spines; Soesilarishius albipes sp. nov. 62 male leg I, prolateral view, showing ventral spines; 63 female leg I, prolateral view, showing ventral spines; Soesilarishius crispiventer sp. nov. 64 male leg I, prolateral view, showing ventral spines; 65 female leg I, prolateral view, showing ventral spines.