Extraordinarius brucedickinsoni, Rheims, 2019

Rheims, Cristina A., 2019, Extraordinarius gen. nov., a new genus of Sparianthinae spiders (Araneae: Sparassidae) from southeastern Brazil, Zootaxa 4674 (1), pp. 83-99 : 89-91

Extraordinarius brucedickinsoni sp. nov.

http://zoobank.org/ 13C280A7-774C-4FAD-8D9B-293AF409AD98

Figs 25–39 , 65

Type material. Holotype: ♂ from Mata da Garapa (19º39’31”S; 42º34’28”W), Parque Estadual do Rio Doce, Ti- móteo, Minas Gerais, Brazil, 13 May 2008, B.T. Faleiro leg. (UFMG 5390) . Paratype: ♀ from Parque Nacional do Caparaó (20º05’S, 41º09’W), Espírito Santo, Brazil, 1–7 May 2002, Equipe Biota leg. (IBSP 60018) .

Etymology. The specific name honors Bruce Dickinson, singer, writer and airplane pilot, best known for being lead singer of the heavy metal band Iron Maiden; name in genitive case.

Diagnosis. Males of E. brucedickinsoni sp. nov. are distinguished from all other congeners by the male palps with MA bifid and TBC strongly indented ( Figs 30 , 35 ). Females resemble those of E. andrematosi sp. nov. by the epigyne with median septum bearing an anterior scape, but are distinguished by the wide anterior base, almost as wide as the posterior margin of the scape ( Figs 32 , 37 ).

Description. Male (holotype): Prosoma brown, darker at lateral margins, with faint gray lines along fovea and thoracic striae; eye borders black. Chelicerae brown. Legs and pedipalps dark orange. Sternum pale orange with orange margins. Labium and endites orange distally pale yellow. Opisthosoma pale yellowish cream colored; dorsally with brown pattern of pale brown spots and faint chevron-like marks down posterior half; ventrally with few scattered pale brown spots. Spinnerets slightly darker than opisthosoma ( Figs 25–26 ). Total length 10.1. Prosoma: 4.8 long, 4.1 wide. Opisthosoma: 5.3 long, 3.1 wide. Eye diameters: 0.35, 0.30, 0.20, 0.29; interdistances: 0.25, 0.16, 0.42, 0.43, 0.20, 0.11. Legs (4213): I: 13.5 (4.0, 2.3, 3.4, 2.9, 0.9); II: 13.7 (4.1, 2.3, 3.4, 3.0, 0.9); III: 112.0 (3.5, 1.9, 2.4, 2.4, 0.8); IV: 14.8 (4.7, 1.7, 3.4, 3.9, 1.1). Spination follows the generic pattern except tibia I v3-2 -2. Palp: VTA conical, retrolaterally displaced; RTA single, 3 times longer than wide, flattened retrolaterally in ventral view and gently curved ventrally in retrolateral view; TBC as long as wide; MA with one point half as long as the other, arising from tegulum at 5:30 o’clock position; E arising from tegulum at 8 o’clock position ( Figs 29–31 , 34–36 ).

Female (paratype): Prosoma orange, slightly darker at eye area; fovea slightly darker than prosoma; eye borders black. Chelicerae brownish orange. Legs and pedipalps orange, slightly darker than prosoma. Sternum pale yellow with pale orange margins. Labium and endites brownish orange, distally cream colored. Opisthosoma brownish cream colored; dorsally with pattern of brown spots laterally and median chevron-like marks down posterior half; ventrally with few brown spots. Spinnerets brownish cream colored with cream-colored base ( Figs 27–28 ). Total length 11.2. Prosoma: 4.8 long, 3.9 wide. Opisthosoma: 6.0 long, 3.9 wide. Eye diameters: 0.30, 0.28, 017, 0.25; interdistances: 0.30, 0.20, 0.47, 0.49. Legs (41/23): I: 11.0 (3.4, 2.1, 2.6, 2.1, 0.8); II: 11.0 (3.6, 2.1, 2.4, 2.1, 0.8); III: 9.1 (3.0, 1.7, 1.8, 1.8, 0.8); IV: 11.7 (3.5, 1.5, 2.6, 3.0, 1.1). Spination follows the generic pattern except femora I–II d1-0-0; femur III: p0-1-1; femur IV: p1-0-0. Epigyne: epigynal field wider than long; lateral lobes mostly parallel; median septum slightly longer than wide; anterior scape wider than long, darker posteriorly with pair of paramedian darker stripes extending anteriorly ( Figs 32 , 37 ). Vulva: double helix with 4–5 turns ( Figs 33 , 38–39 ).

Distribution. Known from the states of Minas Gerais and Espírito Santo ( Fig. 65 ).

Figures

FIGURE 65. Distribution map for species of Extraordinarius gen. nov.

FIGURES 25–28. E. brucedickinsoni sp. nov., habitus 25–26 Male, holotype (IBSP 5390) (25 dorsal, 26 ventral); 27–28 Female, holotype (IBSP 60018) (27 dorsal, 28 ventral). Scale lines: 2 mm.

FIGURES 29–33. E. brucedickinsoni sp. nov. Male, holotype (IBSP 5390), left palp (29 prolateral, 30 ventral, 31 retrolateral); 32–33 Female, paratype (IBSP 60018) (32 epigyne, 33 vulva). Scale lines: 1mm.

FIGURES 34–39. E. brucedickinsoni sp. nov. 34–36 Male, left palp, holotype (IBSP 5390) (34 prolateral, 35 ventral, 36 retrolateral); 37–39 Female, paratype (IBSP 60018) (37 epigyne, 38 vulva, 39 schematic course of internal duct system). Scale lines: 1mm.