Ami valentinae, Almeida & B & B, 2019

Almeida, Marlus Queiroz, B, Lidianne Salvatierra & B, José Wellington De Morais, 2019, A new species of Ami Pérez-Miles, 2008 (Araneae: Mygalomorphae: Theraphosidae) from the Amazon rainforest, Brazil, Turkish Journal of Zoology 43 (6), pp. 641-643 : 642-643

publication ID	https://doi.org/ 10.3906/zoo-1904-26
persistent identifier	https://treatment.plazi.org/id/03F887C1-2462-6A26-FF45-FED7FD71FC13
treatment provided by	Felipe
scientific name	Ami valentinae
status	sp. nov.

Treatment

Ami valentinae sp. nov. ( Figures 1A–1D View Figure 1 and 2A–2G View Figure 2 )

Type material. Holotype: 1♂, BRAZIL, Amazonas, Manaus, Fazenda Experimental da UFAM, 2 ° 38′00.0″S, 60 ° 03′00.0″W, 01.xii.2018, M.Q. Almeida leg. GoogleMaps , deposited in INPA (9074). Paratypes: 2♂, same collector and date, deposited in INPA (9075).

Diagnosis. Males of Ami valentinae sp. nov. ( Figure 1A View Figure 1 ) resemble those of A. armihuariensis and A. caxiuana by the presence of granular area on embolus, but differ by the granular area composed by minuscule granulations ( Figure 2E View Figure 2 ), and by prolateral inferior keel curved ( Figure 2C View Figure 2 ). It also differs from A. armihuariensis by the presence of two retrolateral processes on the male palpal tibia ( Figure 2F View Figure 2 ), and from A. caxiuana by the terminal embolic, in the prolateral region, slightly diagonally in relation to the palpal organ axis ( Figures 2C and 2D View Figure 2 ).

Etymology. The specific name is in honor of Valentina Moroni Almeida , the first author’s daughter.

Description (♂ Holotype). Total length: 12.9 (excluding chelicerae and spinnerets), carapace length 6.6, width 6.1. Fovea transverse, width 0.8. Clypeus 0.1. Labium length 0.7, width 0.8, with 20 cuspules. Left maxilla with 44 and right maxilla 43 cuspules ( Figures 1B and 1C View Figure 1 ). Sternum length 3.7, width 2.7. Right chelicera with 9 teeth on the promargin and 9 small teeth on proximal retromargin, and left chelicera with 8 teeth on the promargin and 9 small teeth on the proximal retromargin. All tarsal claws with two teeth. Coloration: Color in alcohol, carapace, legs yellowish brown, and abdomen dark brown ( Figure 1A View Figure 1 ). Eyes: Diameters: AME 0.22 (circular), ALE 0.11 (oval), PME 0.20 (oval), PLE 0.20 (oval) ( Figure 1D View Figure 1 ). Interdistances: AME– AME 0.16, AME–ALE 0.09, PME–PME 0.56, PME– PLE 0.06, ALE–PLE 0.08. OQ: Length 1.16, width 0.52. Ocular tubercle: Length 1.16, width 0.72. Legs: Ventral tibial apophysis on the first pair of legs with robust apical spine ( Figure 2G View Figure 2 ). Leg and palp measurements: Palp: Femur 3.5; Patella 1.7; Tibia 3.5; Tarsus 1.4. Legs: Femur I 6.8, II 5.9, III 5.3, IV 5.6; Patella I 3.6, II 3.3, III 2.7, IV 2.9; Tibia I 6.6, II 5.5, III 4.7, IV 6.6; Metatarsus I 5.1, II 5.2, III 5.8 IV 8.4; Tarsus I 3.1, II 3.7, III 3.2, IV 3.5. Spinulation: Femora I–IV and femora of palps 0; patella I–IV 0 and patella of palps 0; tibia I v0-0-1ap, II v0-0-1, III v0-0-3ap, p0-1-0, IV v0-0-3ap, r0-1-0 and tibia of palps p0-1-0; metatarsi I v0-0-1ap, II v0-0-2ap, III v0-4-3ap, r0-1-1, p0-1-1; IV v0-4-3ap, p0-1-1, r0- 1-1; tarsi I-IV and tarsi of palps 0. Palp: Palpal organ piriform ( Figures 2A–2D View Figure 2 ). Palpal tibia with two distal conical processes on retrolateral surface ( Figure 2F View Figure 2 ) and one spine in prolateral of tibial palp ( Figure 2A View Figure 2 ). Keels absents between the PS and PI keels on embolus ( Figure 2C View Figure 2 ). Presence of microspikes (granulation) in tegular area of bulb ( Figure 2E View Figure 2 ).

Female. Unknown.

Distribution. Known only from the type locality.

Natural history: The males were collected by pitfall trap in a primary rainforest.

Ami valentinae sp. nov. is the first species of Ami reported in the state of Amazonas and the second species described for Brazil. Biogeographically, there is a gap of 1.151 km between the type locality of Ami valentinae sp. nov. and its Colombian congener, A. amazonica , only