Ami bladesi Pérez-Miles, Gabriel & Gallon, 2008

Pérez-Miles, Fernando, Gabriel, Ray, Miglio, Laura, Bonaldo, Alexandre, Gallon, Richard, Jimenez, Juan Jacobo & Bertani, Rogerio, 2008, Ami, a new Theraphosid genus from Central and South America, with the description of six new species (Araneae: Mygalomorphae), Zootaxa 1915, pp. 54-68 : 59-61

Ami bladesi Pérez-Miles, Gabriel & Gallon , sp. nov.

( Figs 2, 16–18 , 40 ; Table 5 )

Type: Holotype male, Isla Colón (9º 20’ N, 82º 15’W), Panamá, R. Gabriel, 13 Apr 2004, deposited in MIF. Etymology: The specific epithet is a patronym in honor of Ruben Blades (born 1948) a famous singer and composer from Panama.

Diagnosis: Male differs from that of A. caxiuana by the orientation of the embolus (which ends almost perpendicularly to papal organ axis); from A. yupanquii by the shorter apical portion of the palpal organ and the prolateral inferior keel having a non-serrated edge ( Figs19–20 ); from A. obscura by well-developed prolateral keels on the palpal organ; and from A. pijaos by having only two prolateral keels on the palpal organ. Female unknown. Related to A. obscurus and the clade A. yupanqui +, in an unresolved polytomy (see Cladistics).

Description: Male (holotype): Total length, excluding chelicerae and spinnerets, 17.5. Carapace length 8.6, width 7.5. Anterior eye row slightly procurved, posterior slightly recurved. Eyes sizes and interspaces: AME 0.41, ALE 0.22, PME 0.30, PLE 0.37, AME–AME 0.17, AME–ALE 0.05, PME–PME 0.75, PME–PLE 0.05, ALE–PLE 0.17, OQ length 0.96, width 1.8, clypeus 0.32. Fovea transverse, width 1.0. Labium length 1.1, width 1.5 with 19 cuspules, maxillae with ca. 55 cuspules on inner third. Sternum length 3.6. Chelicerae with 8 teeth on promargin and 12 small teeth on proximal retromargin. Tarsi I–IV densely scopulated: I, II entire, III divided in apical half, IV divided by strip of longer, thicker setae. Metatarsi I, II scopulate in apical half, III for apical quarter, IV ascopulate. Palpal tibia with two distal conical processes on retrolateral surface ( Fig. 2 ). Tibia I with paired distal proventral apophyses, without retrolateral spine on retrolateral apophysis ( Fig. 16 ). Flexion of metatarsus retrolateral with respect to tibial apophyses. Palpal organ piriform ( Figs 17– 18 ). Spination: femora, patella and tarsi I–IV and palp, 0. Tibiae I 1 R; II 3V; III 3V; IV 3V, 1R, 1P.. Metatarsi I 1V, 1P; II 3V; III 7V, 1P, 1R; IV 9V, 1R, 1P. Color: cephalothorax, abdomen and legs reddish-brown with central carapace and femora darker.

Figures

FIGURES 1 – 16. Ami species. 1 – 4. Left palpal tibiae, males, dorsal view, showing two retrolateral processes. 1. Ami obscura; 2. Ami bladesi; 3. Ami yupanqui; 4. Ami caxiuana. 5 – 6. Ami caxiuana, dorsal view. 5. Male; 6. Female. 7 – 8. Left palpal organ, A. caxiuana, male. 7. Prolateral view, showing keels and granular area; 8. Retrolateral view. 9. A. caxiuana, spermathecae, ventral view. 10. A. caxiuana, left tibial apophyses, male, proventral view. 11 – 13. A. yupanquii, male, left palpal organ. 11. Prolateral view showing ventral flattened area (on left); 12. Retrolateral view; 13. Dorsal view. 14. A. yupanquii, male, left tibial apophyses, proventral view. 15. A. yupanquii, spermathecae, ventral view. 16. A. bladesi, male, left tibial apophyses, proventral view.

FIGURES 17 – 38. Ami species. 17 – 18. A. bladesi, male, left palpal organ,. 17. Prolateral view; 18. Retrolateral view. 19 – 20. A. obscura, male, right palpal organ. 19. Retrolateral view, 20. Prolateral view. 21. A. obscura, male, right tibial apophyses, proventral view. 22 - 23. Ami pijaos, male, left palpal tibiae, showing retrolateral process. 22. Dorsal view; 23. Ventral view. 24 – 27. A. pijaos, male, left palpal organ. 24. Prolateral view. 25. Retrolateral view; 26. Prodorsal view. 27. Retrodorsal view. 28. A. pijaos, male, left tibial apophyses, proventral view. 29. A. pijaos, spermathecae, ventral view. 30. Ami amazonica, female, dorsal view. 31. A. amazonica, spermathecae, ventral view. 32. A. weinmanni, male, left palpal tibia, dorsal view, showing two retrolateral processes. 33. A. weinmanni, male, left tibial apophyses, proventral view. 34 – 35. A. weinmanni, male, left palpal organ. 34. Prolateral view; 35. Retrolateral view. 36. A. weinmanni, spermathecae, ventral view. 37 – 38. Ami weinmanni, dorsal view. 37. Male; 38. Female.

FIGURES 39 - 45. Ami species. 39. A. yupanquii, female, habitus. 40. A. bladesi, male, habitus. 41. A. pijaos, male, habitus. 42. A. amazonica, female, habitus. 43 – 44. Ami weinmanni, female tarsus II, ventral view. 43. Tarsal scopula with distal rhomboidal group of longer setae. 44. Close-up of distal tarsal scopula showing group of longer setae. 45. A. weinmanni, male, modified Type I abdominal urticating hairs, with area b longer than usual.