Extraordinarius rickalleni, 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: 94-96

publication ID

https://doi.org/10.11646/zootaxa.4674.1.4

publication LSID

lsid:zoobank.org:pub:5F4DF8E8-FB45-451E-966C-0D4557E9A2DA

persistent identifier

http://treatment.plazi.org/id/E8A04833-025B-43BD-BBE7-54C47AA643BD

taxon LSID

lsid:zoobank.org:act:E8A04833-025B-43BD-BBE7-54C47AA643BD

treatment provided by

Plazi

scientific name

Extraordinarius rickalleni
status

sp. nov.

Extraordinarius rickalleni   sp. nov.

http://zoobank.org/ E8 A04833 View Materials -025B-43BD-BBE7-54C47AA643BD

Figs 2, 5, 7, 9 View FIGURES 1–9 , 50–65 View FIGURES 50–53 View FIGURES 54–58 View FIGURES 59–64 View FIGURE 65

Type material. Holotype: ♂ from Reserva Biológica Augusto Ruschi [19º53’S, 40º32’W], Santa Teresa, Espírito Santo, Brazil, April — August 2006, T. Souza, T. Bernabe & E. Soveiro leg. (IBSP 121338) GoogleMaps   . Paratypes: 1♀, same vial as holotype (IBSP 121338); 1♀, same collection data as holotype (IBSP 121533) GoogleMaps   ; 1♀, Reserva Florestal do Morro do Ariacanga (19º49’S, 40º19’W), Aracruz, Espírito Santo, Brazil, 14–16 October 2005 GoogleMaps   , T. Souza et al. leg. (IBSP 133442); 1♂, same collection locality as latter species, 22–27 April 2010, J.P.P. Pena Barbosa et al. leg. (IBSP 234651); 1♂, Parque Serra Santa Lucia [19º57’S, 40º32’W], Santa Teresa , Espírito Santo, Brazil, 13 August 2011 GoogleMaps   , J.P.P. Pena Barbosa et al. leg. (IBSP 234868).

Etymology. The species name honors Rick Allen, drummer for the British rock band Def Leppard, who lost an arm in a car accident but continues to play the drums with an especially adapted drum set; name in genitive case.

Diagnosis. Males of E. rickalleni   sp. nov. are distinguished from all other congeners by the male palps with VTA rounded in ventral view, RTA single, tapering, four times longer than wide and retrolatero-distad in ventral view ( Figs 55 View FIGURES 54–58 , 60 View FIGURES 59–64 ) and MA three times longer than wide, medially curved in prolateral and retrolateral views ( Figs 54, 56 View FIGURES 54–58 , 59, 61 View FIGURES 59–64 ). Females are distinguished from all other congeners by the epigyne with median septum lacking anterior scape ( Figs 57 View FIGURES 54–58 , 62 View FIGURES 59–64 ).

Description. Male (holotype): Prosoma reddish brown with slightly darker fovea; eye borders black. Chelicerae reddish brown. Legs and pedipalps orange. Sternum orange with brown margins. Labium and endites brown, distally orange. Opisthosoma brownish gray; dorsally with brown pattern of spots anteriorly and laterally and median chevron-like marks down posterior half; ventrally mottled with few brown spots. Spinnerets pale brown ( Figs 5 View FIGURES 1–9 0–51). Total length 9.7. Prosoma: 4.2 long, 3.6 wide. Opisthosoma: 5.5 long, 3.0 wide. Eye diameters: 0.30, 0.24, 0.20, 0.26; interdistances: 0.20, 0.06, 0.38, 0.36, 0.10, 0.06. Legs (4123): 11.8 (3.5, 2.1, 2.9, 2.5, 0.8); II: 11.6 (3.5, 2.1, 2.7, 2.5, 0.8); III: 9.6 (3.0, 1.6, 2.1, 2.1, 0.8); IV: 12.4 (3.7, 1.6, 2.7, 3.4, 1.0). Spination follows the generic pattern except femur III: r1-1-0; metatarsus I v2-1 p-0. VTA retrolaterally displaced; RTA medially bent in retrolateral view; MA arising from tegulum at 5:30 o’clock position; TBC cave-like; E arising from tegulum at 7 o’clock position ( Figs 54–56 View FIGURES 54–58 , 59–61 View FIGURES 59–64 ).

Female (IBSP 121338): Coloration pattern as in male, slightly lighter ( Figs 52–53 View FIGURES 50–53 ). Total length 13.4. Prosoma: 4.9 long, 4.2 wide. Opisthosoma: 8.0 long, 4.9 wide. Eye diameters: 0.32, 0.28, 0.20, 0.26; interdistances: 0.24, 0.14, 0.46, 0.48, 0.18, 0.16. Legs (4213): I: 11.8 (3.5, 2.2, 2.9, 2.4, 0.8); II: 12.2 (4.1, 2.2, 2.8, 2.3, 0.8); III: 10.1 (3.3, 1.7, 2.1, 2.2, 0.8); IV: 13.0 (3.8, 1.7, 2.9, 3.4, 1.2). Spination follows the generic pattern. Epigyne: epigynal field wider than long; lateral lobes slightly converging anteriorly; median septum almost two times wider than long ( Figs 57 View FIGURES 54–58 , 62 View FIGURES 59–64 ). Vulva: double helix with 4–5 turns ( Figs 58 View FIGURES 54–58 , 63–64 View FIGURES 59–64 ).

Variation. Males (n = 3): total length 8.6–9.7; prosoma length 4.0–4.7; femur I length 3.4–3.5. Females (n = 3): total length 13.4–14.3; prosoma length 4.9–5.3; femur I length 3.5–3.9.

Distribution. Known from the state of Espírito Santo, Brazil ( Fig. 65 View FIGURE 65 ).