Extraordinarius andrematosi, 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 : 86-88

Extraordinarius andrematosi sp. nov.

http://zoobank.org/ 63A8854C-64E4-4D45-808E-4A9C6F751EF0

Figs 1, 3–4, 6, 8 , 10–24 , 65

Type material. Holotype: ♂ from Reserva Florestal do Morro Grande [23º43’S, 46º57’W], Caucaia do Alto, Cotia, São Paulo, Brazil, 13–30 June 2002, Equipe Biota leg. (IBSP 124323) . Paratypes: 1♀, same data as for holotype (IBSP 124310) ; 1♀, Parque Ilha dos Eucaliptos [23º43’S, 46º44’W], Represa de Guarapiranga, São Paulo, São Paulo, Brazil, 1–13 April 2004, I. Cizauskas & C.R.M. Garcia leg. (IBSP 62064) ; 1♀, Ilha de Cananéia [25º00’S, 47º54’W], Cananéia, São Paulo, Brazil, 5–6 June 1976, W.R. Fontes leg. (MZSP 12685) .

Etymology. The species name honors Andre Coelho Matos (1971–2019), Brazilian singer, composer, maestro and pianist, lead singer for the heavy metal bands Viper, Angra and Shaman. A great guy that left us too soon; name in genitive case.

Diagnosis. Males of E. andrematosi sp. nov. resemble those of E. klausmeinei sp. nov. by the triangular shape of the TBC in the male palps ( Figs 15 , 20 ). They are distinguished by having the RTA bent at a 90º angle, in retro- lateral view (straight in E. klausmeinei sp. nov.) and by the MA with the same width throughout (with a widened base in E. klausmeinei sp. nov.) ( Figs 15–16 , 20–21 ). Females resemble those of E. brucedickinsoni sp. nov. by the epigyne with median septum bearing an anterior scape, but are distinguished by the slender anterior base of the scape ( Figs 17 , 22 ).

Description. Male (holotype): Prosoma and chelicerae brown; fovea darker brown; eye borders black. Legs and pedipalps pale brown. Sternum orange with pale brown margins. Labium and endites orange, distally translucent white. Opisthosoma yellowish cream colored; dorsally with brown pattern of brown spots laterally and median chevron-like marks down posterior half; ventrally with few scattered brown spots. Spinnerets orange ( Figs 10–11 ). Total length 11.8. Prosoma: 5.3 long, 4.4 wide. Opisthosoma: 6.0 long, 3.7 wide. Eye diameters: 0.35, 0.31, 0.21, 0.30; interdistances: 0.30, 0.17, 0.50, 0.50, 0.20, 0.10. Legs (4123): I: 14.0 (4.2, 2.4, 3.5, 2.9, 1.0); II: 13.9 (4.3, 2.4, 3.3, 2.9, 1.0); III: 11.5 (3.9, 1.9, 2.4, 2.5, 0.8); IV: 14.6 (4.3, 1.9, 3.4, 3.9, 1.1). Spination follows the generic pattern except metatarsi I–II p1-1-0. Palp: VTA conical, almost median; RTA single, almost 3 times longer than wide and retrolatero-distad in ventral view; TBC wider than long; MA 2 times longer than wide, arising from tegulum at 5:30 o’clock position; E arising from tegulum at 7 o’clock position ( Figs 14–16 , 19–21 ).

Female (IBSP 124310): Coloration pattern as in male ( Figs 12–13 ). Total length 13.5. Prosoma: 5.3 long, 4.5 wide. Opisthosoma: 8.2 long, 3.7 wide. Eye diameters: 0.35, 0.30, 0.20, 0.30; interdistances: 0.33, 0.20, 0.55, 0.53, 0.30, 0.15. Legs (4213): I: 12.3 (3.7, 2.4, 3.0, 2.4, 0.8); II: 12.5 (4.0, 2.3, 2.9, 2.4, 0.9); III: 10.7 (3.3, 2.0, 2.4, 2.2, 0.8); IV: 13.5 (4.0, 1.8, 3.0, 3.6, 1.1). Spination follows the generic pattern except femur III d1-1-0. Epigyne: epigynal field as long as wide; lateral lobes converging anteriorly; median septum wider than long; anterior scape with lighter triangular region at center ( Figs 17 , 22 ). Vulva: double helix with 6–7 turns ( Figs 18 , 23–24 ).

Variation. Females (n = 3): total length 11.4–13.5; prosoma length 4.7–5.3; femur I length 3.5–3.7.

Distribution. Known from the state of São Paulo, Brazil ( Fig. 65 ).

Figures

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

FIGURES 1–9. E. andrematosi sp. nov. (1, 3, 6, 8 female IBSP 62064, 4 male IBSP 124323); E. rickalleni sp. nov. (2, 5 female IBSP 121533, 7, 9 male IBSP 121338).1 Female, left chelicerae, ventral view (arrow points to retrolateral escort setae); 2 Female, right endite, serrula, ventral view; 3 Female, left palp, claw, prolateral view; 4 Male, left leg I, metatarsus, trilobate membrane, dorsal view; 5 Female, left leg III, tarsus, tricobothria, dorsal view; 6 Female, left leg I, tarsus, tarsal organ, dorsal view; 7 Male, left leg II, tarsal claws, prolateral view; 8 Female, left leg III, tarsal claws, prolateral view; 9 Male, epiandrium, ventral view (arrow points to epiandrous spigots). DP = distal plate; PP = proximal plate.

FIGURES 10–13. E. andrematosi sp. nov., habitus. 10–11 Male, holotype (IBSP 124323) (10 dorsal, 11 ventral); 12–13 Female, paratype (IBSP 62064) (12 dorsal, 13 ventral). Scale lines: 2 mm.

FIGURES 14–18. E. andrematosi sp. nov. 14–16 Male, holotype (IBSP 124323), left palp (14 prolateral, 15 ventral, 16 retrolateral); 17–18 Female, paratype (IBSP 124310) (17 epigyne, 18 vulva). Scale lines: 1mm.

FIGURES 19–24. E. andrematosi sp. nov. 19–21 Male, left palp, holotype (IBSP 124323) (19 prolateral, 20 ventral, 21 retrolateral); 22–24 Female, paratype (IBSP 124310) (22 epigyne, 23 vulva, 24 schematic course of internal duct system). FD—fertilization duct; LL—lateral lobe; MS—median septum; Sc—scape. Scale lines: 1 mm.