Protimesius foliadereis, Villarreal-Manzanilla, Osvaldo & Pinto-Da-Rocha, Ricardo, 2006

Villarreal-Manzanilla, Osvaldo & Pinto-Da-Rocha, Ricardo, 2006, Five new species of Protimesius from Brazil (Opiliones: Stygnidae), Zootaxa 1325, pp. 219-233: 220-222

publication ID 10.5281/zenodo.174062

persistent identifier

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scientific name

Protimesius foliadereis

n. sp.

Protimesius foliadereis  n. sp.

Figs 1 –7View FIGURES 1 – 7, 36– 37View FIGURES 36 – 45

Type­material: Male holotype (MZSP­ 17753), Brazil, Mato Grosso, Juruena (Amazonian Rain Forest, 12 ° 51 ´S, 58 ° 56 ´W), 7.– 18.VI. 1997, G. Skuk leg.

Diagnosis: The new species is similar to P. evelianeae (Soares & Soares, 1978)  by the presence of a dorsal row of acute tubercles on male patella IV to basal third of tibia IV. It differs from P. evelianeae  by the presence of a prolateral row of acute tubercles on distal half of male tibia IV and by the absence of a wide eminence on anterior margin of dorsal scute.

Etymology: “Folia de Reis” is a popular Brazilian religious festival in which people go from home to home, chanting and playing instruments, held between Christmas and January 6 th. The singers perform religious themes about the birth of Jesus, and they are dressed with colored­striped clothes adorned with small pieces of mirror. The specific epithet is a noun in apposition.

Description of male (holotype):

Measurements: Dorsal scute length 4.4; prosoma length 2.0; dorsal scute width 3.8; prosoma width 3.6; interocular distance 2.6; chelicera: II 5.1; III 2.2; pedipalpus 16.5; leg I 21.0; II 38.5; III 28.5; IV 36.5.

Dorsum ( Figs 1–2View FIGURES 1 – 7): Prosoma with low anterior eminence carrying 9 small tubercles. Ocularium smooth. Lateral margin with tubercles from eyes to groove II. Area III with 2 parallel spines.

Venter: Coxa I with 1 median row of 5 tubercles, 2 apical; II with 1 median row of 6 tubercles; III and IV irregularly minutely tuberculated. Free sternites I –III with a row of minute granules. Anal plate irregularly minutely granular.

Chelicera: Swollen. Segment I smooth; II with finger carrying 1 wide lamina and 2 small teeth; III with 3 subapical teeth (basal one widest).

Pedipalpus ( Figs 3–4View FIGURES 1 – 7): Coxa with large dorso­anterior apophysis and 1 basal posterior tubercle. Trochanter with 1 ventral tubercle. Femur with 1 ventro­basal tubercle. Tibia mesal IIiIi (2 = 4> 1> 3 = 5), ectal IIiIi (4> 1> 2> 5> 3). Tarsus mesal IiIiii (1 = 3> 5> 2> 4> 6), ectal Iiiii (1> 4; 2 = 5).

Legs ( Figs 5–7View FIGURES 1 – 7): Coxa I with 2 anterior and 1 posterior tubercles; II with 2 posterior tubercles (1 fused with another of coxa III); III with 1 tubercle fused with other of coxa IV; IV minutely tuberculated. Trochantera I and II with 3 ventral tubercles; III and IV with 2 ventral tubercles. Femur IV with prolatero­apical row of 5 tubercles; retrolateral row of 15 tubercles on distal third. Patella IV with dorsal row of 8 tubercles increasing in size apicad, 1 large ventro­apical tubercle. Tibia IV with 1 row of tubercles from ventral to mesal (increasing in size apicad); 1 prolateral row on distal 2 / 3, increasing in size apicad (apical tubercle trifid); 7 dorso­basal tubercles. Tarsal segmentation: 8, 19, 7, 8.

Penis ( Figs 36–37View FIGURES 36 – 45): Ventral plate with lateral and distal margin almost straight, 3 curved distal setae, no intermediary pair, 4 basal pairs of straight setae; with dorsal process; stylus swollen apically.

Color: Mostly brown, with minute dark brown spots all over body and legs. Chelicerae (fingers darker) and tibia IV reddish brown.

Female unknown.