Amapalea brasiliana, Silva, Estevam Luís Cruz Da & Lise, Arno Antonio, 2006

Silva, Estevam Luís Cruz Da & Lise, Arno Antonio, 2006, Description of two new spider genera of Trechaleidae (Araneae: Lycosoidea) from Northern Brazil, Zootaxa 1275, pp. 61-68 : 64

Amapalea brasiliana sp. n.

Figs 1–5 , 13–17

Types. ɗ holotype (MCTP 17193) from Macapá, Amapá, Brazil, 24.–28.I.2004, R. A. Silva leg., 2 ɗ paratypes (MCTP 17033), also without abdomen, same location of the holotype.

Etymology. The specific name is an adjective and refers to the country of origin.

Diagnosis. This species can be distinguished from Trechalea and Paradossenus by the presence of a projection in the tegulum ( Figs 3 , 14 ) and a lateral protrusion of ventral division of median apophysis (LPV) ( Figs 3 , 14 ).

Description. ɗ (holotype). Carapace, 1.36 long, 1.24 wide, grayish, with two yellowish lateral bands, with brownish border, dorsum with brown dark spots and with three white lines near the fovea ( Fig. 1 ). Chelicerae yellowish, faces brownish with vertical bands, almost glabrous medially with light setae on distal one­third of its length. Endites orange, 0.16 long, 0.09 wide; labium light brown, 0.18 long, 0.22 wide; sternum yellow, unmarked, 0.68 long, 0.65 wide. Legs yellowish, brownish dorsally. Abdomen missing. Clypeus 0.55 long, 0.03 high; dark at anterior margin. Anterior eye row moderately procurved, 0.40 wide; posterior recurved, 0.62 wide. Eye diameters, interdistances and ocular quadrangle: AME 0.09, ALE 0.06, PME 0.12, PLE 0.06; AME –AME 0.06, AME–ALE 0.03, PME–PME 0.09, PME–PLE 0.09, MOQ, 0.15 long, dorsal view, 0.19 frontal view, anterior width 0.09, posterior 0.23. Leg measurements: I femur 2.26/ patella­tibia 2.94/ metatarsus 2.23/ tarsus 1.11/ total 8.54; II 2.01/ 2.54/ 1.86/ 0.96/ 7.37; III 0.86/ 0.99/ 1.05/ 0.43/ 3.33; IV 1.02/ 1.05/ 1.11/ 0.40/ 3.58. Tarsal claws with elongated teeth ( Fig. 16 ). Bothrium of trichobothria with distinct hood ( Fig. 17 ). Palpus ( Figs 2–5 , 14 ) presenting a ventral protrusion pointing retrolaterally ( Fig. 3 ) and three large spines, two positioned laterally in dorsal view and one dorsal. The retrolateral tibial apophysis presents only one branch (ectal division) with the distal portion curved ( Figs 3–5 , 15 ). Ventrodistal protuberance of palpal tibia prominent, retrolaterally projected ( Fig. 3 ).

Distribution. Brazil (Amapá) ( Fig. 13 ).

Figures

FIGURE 13. Distribution of species of Amapalea gen. n. and Magnichela gen. n. in South America

FIGURES 14 – 17. Amapalea brasiliana gen. n. sp. n. 14, detail of male palpus, ventral view; 15, detail of retrolateral tibial apophysis, dorsal view; 16, tarsal claw, lateral view; 17, trichobothrium. Abbreviations: DD—dorsal division of median apophysis; ECD—ectal division of retrolateral tibial apophysis; G—guide (terminal portion of median apophysis); LPV—lateral protusion of ventral division of median apophysis; ST—subtegulum; T—tegulum; TP—tegular projection; VD—ventral division of median apophysis.

FIGURES 1 – 5. Amapalea brasiliana gen. n. sp. n. 1, Habitus, dorsal view; 2 – 5, Left palpus (2, dorsal; 3, ventral; 4, prolateral; 5, retrolateral view). Abbreviations: DD—dorsal division of median apophysis; ECD—ectal division of retrolateral tibial apophysis; G—guide (terminal portion of median apophysis); LPV—lateral protrusion of ventral division of median apophysis; STsubtegulum; T—tegulum; TP—tegular projection; VD—ventral division of median apophysis;