Jambu paru gen. et sp. nov. urn:lsid:zoobank.org:act: C5408331-6288-47F8-B699- 03091504 FBF1 Figs 1–5, 10; Tables 1–2 Diagnosis Males resemble those of J. manoa gen. et sp. nov. and J. butantan gen. et comb. nov. by the presence of a long filiform embolus but differ from them in the presence of a very developed subtriangular PI together with a serrated PA (Figs 3, 4A–B) and the presence of a retrolateral process on the palpal tibia (Fig. 1E). Additionally differs from J. butantan in the absence of PS on palpal bulb (Figs 3, 4A–B). Females differ by the presence of an abdominal pattern with two anterior transverse narrow lines and a posterior brown subtriangular spot (Fig. 2C) and by the presence of a single lamp-shaped spermathecal receptacle (Fig. 4E). Etymology The specific epithet is a noun in apposition which refers to an isolated indigenous land Rio Paru d’Este, which is in the area of collection, Almeirim, State of Pará, Brazil. Type material Holotype BRAZIL • ♂; Pará, Almeirim, Jarí; 1°11′28″ S, 52°38′52″ W; 28 Feb. 2005; T. Gardner and E. Ribeiro-Júnior leg.; MPEG 7437. Paratypes BRAZIL • 1 ♀; same locality, date and collectors as for holotype; 0°35′28″ S, 52°44′09″ W; MPEG 7447 • 1 ♂; Pará, Almeirim, Jari, Área 56; 00°42′42″ S, 52°40′08″ W; 11 Feb. 2005; T. Gardner leg.; CZUFMT-ARA 1303 • 1 ♂; Quaruba; 01°1′32″ S, 52°54′17″ W; 27 Mar. 2005; T. Gardner and M.A. Ribeiro-Júnior leg.; MUSM-ENT 0511103 • 2 ♂♂; same collection data as for preceding; MPEG 7446, MPEG 7441 • 1 ♂; Bituba; 01°11′28″ S, 52°38′51″ W; 28 Feb. 2005; T. Gardner and M.A. Ribeiro-Júnior leg.; MEKRB-UA 971/2005 • 2 ♂♂; same collection data as for preceding; MPEG 7448, MPEG 7450 • 2 ♂♂; same locality as for preceding; 7 Mar. 2005; T. Gardner leg.; MPEG 7442 • 1 ♂; same collection data as for preceding; FCE-MY 1466 • 2 ♂♂; same collection data as for preceding; MPEG 7444 • 1 ♀ (examined by scanning electronic microscope); Pará, Almeirim; 01°1′32″ S, 52°54′17″ W; 3 Apr. 2005; T. Gardner and M.A. Ribeiro-Júnior leg.; MPEG 7440. Description Male (holotype MPEG 7437) Total length 24, carapace length 11.50, width 11.13. Anterior eye row procurved, posterior recurved. Eye sizes and interdistances: AME 0.32, ALE 0.56, PME 0.28, PLE 0.42, AME–AME 0.26, AME–ALE 0.16, PME–PME 1.04, PME–PLE 0.12, ALE–PLE 0.16. OQ length 0.93, width 2.04, clypeus 0.40. Fovea transverse, procurved, width 1.66. Labium length 1.44, width 1.66, with 8 cuspules, maxillae with 63 cuspules (Fig. 1F). Sternum length 5.25, width 5.06. Posterior sigillae submarginal (Fig. 1D). Chelicerae with 10 teeth on furrow promargin (some of them smaller), and with 31/27 small teeth in proximal group behind promarginal line. Tarsi I–IV densely scopulated, scopula I–III entire, IV divided by narrow line of longer conical setae. Metatarsi I scopulate on distal half, II scopulate on distal 1/6, III apically scopulate, IV not scopulate. Tibia I with prolatero-ventral, distal double apophysis with basis fused and branches convergent, two megaspines on retrolateral branch (Fig. 4C–D). Flexion of metatarsus I retrolateral regarding retrolateral branch. Palpal bulb piriform, with developed subtriangular PI and PA with several granulations present on edge; TA present and well developed, embolus filiform, long (Figs 3, 4A–B). Palpal tibia with setose retrolateral process (Fig. 1E) and field of four spines (one basal three distal) on prolateral face. Length of leg and palpal segments in Table 1. Spination: femora I–II 1p; III 1r; IV 0; palp 1p. Patellae I–IV 0; palp 0. Tibiae I 4r, 1v; II 2p, 2r, 8v; III 4p, 3r, 4v; IV 5p, 3r, 4v; palp (short spines) 11p, 1v; 4d. Metatarsi I 2p, 2r, 3v; II 2p, 4r, 4v; III 4p, 3r, 5v, 7d; IV 11p, 3r, 4v, 10d; tarsi I–IV and palp 0. Color: cephalothorax and legs and dorsal abdomen brown with pattern of two transverse lines and a spot light brown on ventral abdomen pale brown (Fig. 1). Type IV urticating setae present (Fig. 5A–B). PMS well developed, PLS normal, apical segment digitiform (Fig. 1B). Female (paratype MPEG 7447) Total length 23.50, carapace length 10.25, width 9.88. Anterior eye row procurved, posterior row slightly recurved. Eye sizes and interdistances: AME 0.24, ALE 0.46, PME 0.28, PLE 0.38, AME–AME 0.32, AME–ALE 0.28, PME–PME 0.96, PME–PLE 0.08, ALE–PLE 0.14. OQ length 0.80, width 1.92, clypeus 0.58. Fovea slightly procurved, width 1.72. Labium length 1.40, width 1.76, with 11 cuspules, maxillae with 72 cuspules (Fig. 2B). Sternum length 4.1, width 4.5. Posterior sigillae submarginal (Fig. 2E). Chelicerae with 11/12 teeth on furrow promargin (some of them smaller) and 19/21 smaller in group, basally, behind large ones. Tarsi densely scopulate, scopula I entire, II divided by a narrow line of longer conical setae, III–IV divided by a wide band of longer conical setae. Metatarsi I scopulate on apical half, II scopulate on apical ¼, III apically scopulate, IV without scopula. Length of leg and palpal segments in Table 11. Spination: femora I–IV and palp 0. Patellae I–IV and palp 0. Tibiae I–II 0; III 1v; IV 1v; palp 3v. Metatarsi: I 4v; II 1p 3v; III 3p, 3r, 4v, 1d; IV 4p, 6r, 7v, 1d. Palp 0. Tarsi I–IV and palp 0. Color: carapace and legs reddish brown; dorsal abdomen dark brown with two light transverse stripes and spot (Fig. 2) ventral abdomen pale brown. Type IV (central abdomen, Fig. 5C–D) and intermediate III–IV (lateral abdomen) urticating setae present. PMS slightly smaller than in male, PLS as in male (Fig. 2D). Spermathecae with one medial lamp-shaped receptacle (Fig. 4E). Distribution Known only from type-locality, Brazil, State of Pará, Almeirim, Jari (Fig. 10).

Published as part of Miglio, Laura T., Perafán, Carlos & Pérez-Miles, Fernando, 2024, Jambu, a new genus of tarantula from Brazil (Araneae, Theraphosidae, Theraphosinae), pp. 229-248 in European Journal of Taxonomy 930 (1) on pages 232-237, DOI: 10.5852/ejt.2024.930.2497, http://zenodo.org/record/10933047