Uaiuara ope, Rheims, Cristina A., 2013

Rheims, Cristina A., 2013, A new genus of huntsman spiders (Araneae, Sparassidae, Sparianthinae) from the Neotropical region, Zootaxa 3734 (2), pp. 199-220 : 214

Uaiuara ope sp. nov.

Figs 9–10 , 45–48 , 59

Type material. Holotype: ♂ from Reserva Extrativista de Catuaba (10°10’S, 67°50’W), Senador Guiomard, Acre, Brasil, 2000–2002, E.F. Morato leg. (IBSP 137209). Paratypes: 2♂, with the same data as holotype (IBSP 43397, 137208); 1♀, Bosque Nacional Alexandre von Humboldt, ca. Pucalipa (08°23’S, 74°33’W), Ucayali, Peru, 29 July 1986, D. Silva leg. (MUSM 505864); 2♀, Centro de Investigación y Capacitación Río Los Amigos (12°34’09”S, 70°06’00”W), Madre de Dios, Peru, 8 December 2005, J.A. Ochoa leg. (MUSM 501118).

Other material examined. BRASIL: Acre: 1♀, Parque Nacional da Serra do Divisor (07°12’S, 72°22’W), 18 March 1997, L. Resende & R.S. Vieira leg. (IBSP 12517, destroyed); 1♂, Rio Branco, Reserva Extrativista de Humaitá (09°58’S, 67°48’W), 12 April 1996, Equipe IBSP/SMNK leg. (IBSP 8747, destroyed); 2♂, 1♀, Senador Guiomard, Reserva Extrativista de Catuaba (10°10’S, 67°50’W), 2001, E.F. Morato leg. (IBSP 43396, 43397, 55713, all destroyed).

Etymology. The specific name is a noun in apposition taken from the Tupi Indian language that means “eyelids” and refers to the general appearance of the retrolateral groove on the cymbium of the male palp.

Diagnosis. Males of Uaiuara ope sp. nov. resemble those of U. barroana (Chamberlin) comb. nov. and U. palenque sp. nov. in the long retrolateral groove on the cymbium of the palps, extending throughout most of the cymbium length ( Figs. 34 , 46 , 50 ). They are distinguished from these species by the hyaline lamina poorly developed at the base of the embolus (large and wide in the latter species), becoming slightly membranous at the base of conductor and by the vRTA anvil shaped in ventral view ( Fig. 45 ). Females resemble those of U. barroana (Chamberlin) comb. nov., U. palenque sp. nov. and U. quyguaba sp. nov. in the median septum of the epigyne being wider than long, slightly rectangular ( Figs 35 , 47 , 51 , 55 ). They are distinguished by the lateral lobes projecting into the median septum anteriorly ( Fig. 47 ) and by the vulva with Lp short and very divergent ( Fig. 48 ).

Description. Male (IBSP 137208, paratype): Prosoma orange brown with U-shaped reticulate brown marks extending from cephalic region to posterior margin of prosoma. Eye borders black. Chelicerae, legs and pedipalps pale brown ( Fig. 9 ). Sternum orange with darker margins. Labium and endites orange. Opisthosoma brownish cream colored with dorsal pattern of scattered pale brown marks on anterior half and chevron-like marks on posterior half ( Fig. 9 ). Total length 3.9. Prosoma: 1.9 long, 1.7 wide. Opisthosoma: 2.0 long, 1.2 wide. Eyes: diameters: 0.16, 0.12, 0.10, 0.10; interdistances: 0.10, 0.04, 0.12, 0.10, 0.08, 0.04. Legs: I: 6.7 (1.8, 0.8, 1.9, 1.6, 0.6); II: 7.0 (2.0, 0.8, 1.9, 1.7, 0.6); III: 5.7 (1.6, 0.7, 1.3, 1.5, 0.6); IV: 6.9 (1.9, 0.7, 1.5, 2.0, 0.8). Spination: tibiae I–II: v 7 pairs. Palp: tibia without spines; dRTA short, slightly subsquared and curved ventrally in retrolateral view; vRTA small, anvil-shaped in ventral view; VTA small, retrolaterally displaced; cymbium with long retrolateral groove, extending throughout almost all cymbium length; subtegulum/tegulum notch at 2 o’clock; tegulum flanked prolaterally by hyaline membrane, protruding very little at the base of embolus and well developed at the base of conductor ( Figs 45–46 ).

Female (MUSM 501180, paratype): Prosoma brown, slightly darker at eye area, with brown fovea and brown U-shaped mark extending from eye are to posterior margin of prosoma. Eye borders black. Chelicerae orange brown with dark brown longitudinal stripe. Legs and pedipalps orange brown, slightly lighter than prosoma with faint incomplete brown bands ( Fig. 10 ). Sternum orange with darker margins. Labium and endites orange. Opisthosoma cream colored with dorsal pattern of scattered marks laterally, two brown median marks on anterior half and chevron-like marks on posterior half ( Fig. 10 ). Total length 4.3. Prosoma: 1.8 long, 1.6 wide. Opisthosoma: 2.5 long, 1.7 wide. Eyes: diameters: 0.12, 0.12, 0.10, 0.10; interdistances: 0.10, 0.04, 0.12, 0.10, 0.04, 0.04. Legs: I: 6.3 (1.7, 0.8, 1.9, 1.4, 0.5); II: 6.5 (1.8, 0.8, 1.9, 1.5, 0.5); III: 5.3 (1.5, 0.7, 1.2, 1.4, 0.5); IV: 6.6 (1.8, 0.7, 1.5, 1.9, 0.7). Spination: femur I: p0-1-1; r0-0-1; femur II: r1-1-0; femur III: r0; tibiae I–II: v 8 pairs; tibia III: p0, d0, r0, v1 p-2-2. Epigyne: epigynal field as long as wide; lateral lobes with posterior, small triangular projections, not surpassing in length the posterior margin of the median septum; median septum at least two times wider than long, posteriorly convex ( Fig. 47 ). Vulva: gp inconspicuous; Cp long and strongly convoluted; fertilization ducts diverging posteriorly and pointing away from each other ( Fig. 48 ).

Variation. Males (n = 3): total length 3.7–4.0; prosoma length 1.8–1.9; femur I length 1.8–1.9. Females (n = 3): total length 4.2–4.5; prosoma length 1.8–2.0; femur I length 1.7–1.9.

Distribution. Peru (central and southwestern) and Brazil (state of Acre) ( Fig. 59 ).

Figures

FIGURE 59. Distribution map for Uaiuara ope sp. nov., Uaiuara palenque sp. nov. and Uaiuara quyguaba sp. nov.

FIGURES 9 – 12. Habitus, dorsal view. 9 – 10 Uaiuara ope sp. nov. (9 male, holotype IBSP 137209, 10 female, paratype MUSM 501118); 11 – 12 Uaiuara palenque sp. nov. (11 male, holotype AMNH, 12 female, paratype AMNH). Scale lines: 1 mm.

FIGURES 45 – 48. Uaiuara ope sp. nov. 45 – 46 male, IBSP 137209, left palp (45 ventral, 46 retrolateral view); 47 – 48 female, IBSP 12517 (47 epigyne, ventral view, 48 vulva, dorsal view). Scale lines: 0.5 mm.

FIGURES 33 – 36. Uaiuara barroana (Chamberlin) comb. nov. 33 – 34 male, MCZ 69015, left palp (33 ventral, 34 retrolateral view); 35 – 36 female, MCZ 69018, (35 epigyne, ventral view, 36 vulva, dorsal view). Scale lines: 0.5 mm.

FIGURES 49 – 52. Uaiuara palenque sp. nov. 49 – 50 male, AMNH (holotype), left palp (49 ventral, 50 retrolateral view); 51 – 52 female, AMNHN (paratype) (51 epigyne, ventral view, 52 vulva, dorsal view). Scale lines: 0.5 mm.

FIGURES 53 – 56. Uaiuara quyguaba sp. nov. 53 – 54 male, IBSP 55763, left palp (53 ventral, 54 retrolateral view); 55 – 56 female, IBSP 20796 (55 epigyne, ventral view, 56 vulva, dorsal view). Scale lines: 0.5 mm.