Phareicranaus patauateua, Pinto-Da-Rocha, Ricardo & Bonaldo, Alexandre B., 2011

Pinto-Da-Rocha, Ricardo & Bonaldo, Alexandre B., 2011, Species relationships in the Neotropical genus Phareicranaus Roewer 1913 (Opiliones: Cranaidae): two new species and new data from Penial morphology, Zootaxa 3135, pp. 1-34 : 23-25

Phareicranaus patauateua sp. n.

( Figs. 16 , 17 A–E)

Types. Male holotype: Brazil, Pará, Ourém ( Patauateua , fazenda Gavião), 29.X.1990, P. Tadeu leg. (MPEG-40). Paratypes, same data as holotype: male and female (MZSP-30181); male and 3 females (MPEG-41). Etymology. In reference to the type-locality. Name in apposition.

Diagnosis. Phareicranaus patauateua sp. n. differs from all other species of the genus by the very long pedipalp (pedipalpal femur plus patella longer than dorsal scutum length).

Description. Male holotype. Measurements (mm): Dorsal scutum length 8.9; width 9.0; prosomal length 3.9; width 5.3; pedipalpal femur 6.7; femur IV 19; leg I 36, II; III 51; IV?.

Dorsal scutum ( Fig. 16 , 17 A). Anterior margin with 2 tubercles each side, paramedian region smooth. Ocularium with 2 sharp, divergent long spines, 2 pairs of posterior tubercles. Carapace with 1 pair of tubercles behind ocularium, 2 pairs close to ozopore. Lateral margin of scutum with tubercles from coxa III to posterior margin. Area I with 1 row of 5 tubercles on each half; area II with 20 tubercles; III with 2 sharp parallel spines, 3–5 tubercles each side; posterior margin with 27 tubercles. Free tergite I with 24 tubercles; II with 20; III with 2 paramedian spines, 4 tubercles each side. Anal operculum with 2 central tubercles.

Venter. Coxa I with median row of 5 tubercles (median larger), 6 posterior, 3 anterior, 5 apical; II with 5 anterior tubercles, median row of 7, 8 posterior, 4 apical; III with a row of 9 tubercles, 2 anterior, 7 posterior, 5 apical; IV with scattered tubercles, one pair of blunt apophyses near the stigmata. Stigmatic area and free sternites with one row of low setiferous tubercles.

Chelicera. Basichelicerite with 9–10 tubercles; hand with many frontal tubercles; fixed finger with 3 large tubercles; movable finger with 4 large tubercles.

Pedipalp. Coxa smooth dorsally, with 2 ventral tubercles. Trochanter with 2 dorsal, 4 ventral (1 large), and 2 retrolateral, small tubercles. Femur with ventral row of 9 tubercles (basal larger), dorsal row of 7 (apically very long and sharp) tubercles, and 9 mesal and 5 prolateral, small tubercles. Patella with 7 dorsal tubercles. Tibia with many dorsal tubercles, mesal IIIi, ectal iIiIi. Tarsus mesal iIiIi, ectal IiIi ( Fig. 17 B).

Legs. Coxa I dorsally with 1 anterior, long tubercle, but no posterior tubercles; II with one long tubercle in front of ozopore; III with anterior tubercle directed and fused to another of the coxa II and posteriorally directed toward IV; IV with some latero-ventral tubercles, 1 apical tubercle, and1 sharp, long dorsoapical apophysis. Trochanters I–IV small-tuberculate; III and IV with 1 retrolateral, apical, large tubercle; IV with 1 prolateral apical large tubercle, ventromedian tubercle. Femora tuberculate; III–IV with two dorsoapical tubercles, posterior larger; IV with one retrolateral basal, one prolateral, basal tubercles, one retrolateral submedian curved upwards tubercle, one ventral subapical curved tubercle. Patellae small-tuberculate. Tibia IV with one row of tubercles on retrolateral, one ventro subapical tubercle; 1 submedian retrolateral and upcurved tubercle ( Fig. 17 C). Tarsal formula: 8,?, 9,?.

Male genitalia. Ventral plate almost rectangular, distal border with shallow cleft, lateral almost straight. With seven setae divided in two groups, distal with 4 setae slightly curved, basal with 3, basalmost longer than other; with two small setae on ventral region. Glans with small dorsal process, curved frontwards, stylus with apex swollen, with subdistal apophysis ( Fig. 17 D, E).

Color. Body, chelicerae and pedipalps light brown with black reticulate sculpturing on median anterior region to ocularium. Tubercles of dorsal scutum and free tergite I whitish. Spines of ocularium, area III and free tergite III yellowish. Legs Brown; IV reddish until half of femur, remaining femur, patella and tibia dark brownish; metatarsus yellowish with lighter rings.

Female (MZSP-30181). Measurements (mm): Dorsal scutum length 7.7; width 7.7; prosomal length 3.3; width 4.8; pedipalpal femur 6.1; femur IV 19; leg I 29, II 59; III 42; IV 58. Anterior margin with 2–3 tubercles each side. Ocularium with 1–3 tubercles behind each spine. Area I with 4 tubercles each side; II with 10 tubercles; III with 2– 3 each side; posterior margin with 18 tubercles. Free tergite I with 20 tubercles; II with 23 tubercles; III with two very long paramedian spines (about 2/3 area III spine length), 4–5 tubercles each side. Basichelicerite with 6–7 tubercles. Pedipalpal femur with dorsal row of 10 (apical long and sharp), 6 mesal, and 4 prolateral, small tubercles; patella with 7 dorsal tubercles. Trochanter III–IV with one large retrolateral apical tubercle; femur-tibia IV small-tuberculate. Tarsal formula: 8, 16–18, 9, 10.

Distribution. Recorded only in type locality.

Variation. Male. Body length 75; width 69; prosoma length 33; width 45; Legs length I 31; II 61; III 43; IV 58 Tarsal articles: 8, 16–17, 9,10. Anterior margin with 4 tubercles on each side. Ocularium without tubercles. Prosomal behind ocularium with 1 tubercle. Area I with 4 tubercles each side; II with 12; III with 2–3 each side; posterior margin with 14. Free tergite I with 17 tubercles; II with 14; III with 3–5 each side, pair of long spines.

Figures

FIGURE 16. Phareicranaus patauateua sp. n., male holotype, dorsal view of habitus. Scale bars = 2 mm.

FIGURE 17. Phareicranaus patauateua sp. n., male holotype. A, lateral view of habitus; B, ventral view of pedipalp; C, ventral view of trochanter-tibia IV; D, dorsal view of penis; E, same, lateral. Scale bars = 2 mm.