Ferkeria vestita Roewer, 1947

Monteiro, Yago Ferro & Pinto-Da-Rocha, Ricardo, 2015, Revision of the genus Ferkeria Roewer, 1947, with the description of a new species (Opiliones: Laniatores: Cosmetidae), Zootaxa 4006 (2), pp. 361-373 : 363-369

publication ID	https://doi.org/ 10.11646/zootaxa.4006.2.7
publication LSID	lsid:zoobank.org:pub:4881A072-6588-477A-9FBE-EE373ECC1474
DOI	https://doi.org/10.5281/zenodo.6113467
persistent identifier	https://treatment.plazi.org/id/03EA852A-FF89-FB3D-BCEE-F8B1B842FE25
treatment provided by	Plazi
scientific name	Ferkeria vestita Roewer, 1947
status

Treatment

Ferkeria vestita Roewer, 1947 View in CoL

Figs 1 View FIGURE 1 C–D; 2C–D; 3C–D; 4C–D; 5C–D; 6C–D; 7C–D; 8C–D; 9C–D.

Ferkeria vestita Roewer, 1947: 7 View in CoL , pl. 1, fig. 5; 1959: 80; Kury, 2003: 61.

Type material. Locality: BOLIVIA. La Paz. Yungas: Unduavi. Male holotype, SMF RII 1481/12a–b; 4 males and 5 females paratypes (examined).

Other material examined. Bolivia, La Paz, Road La Paz to Coroico, 16º13’45.0”S, 67º49’17.1”W, 2732m, 30.xi.2010, R. Pinto-da-Rocha, A. Benedetti, J. Ochoa & A. Sarabia leg., 13 males and 10 females ( MZUSP 67891); idem, 16º17’10.6”S, 67º50’39.3”W, 3228m, 30.xi.2010, R. Pinto-da-Rocha, A. Benedetti, J. Ochoa & A. Sarabia leg., 3 males and 4 females (CBN), 15 males and 18 females ( MZUSP 67892).

Distribution. BOLIVIA. La Paz. Yungas province.

Diagnosis. Areas I–III each with a pair of spiniform tubercles opposed to the rounded tubercles of F. flavicoxae sp. nov.; male sternite V of F. vestita with 3 large paramedian spines; orange-brown colored coxa IV, unlike the yellow-white coxae of F. flavicoxae sp. nov.; male coxa IV of F. vestita with prominent ventro-apical group of tubercles; male trochanter IV with a bifid retrolateral apical apophysis, while it’s non-bifid in F. flavicoxae sp. nov.; tarsal processes III and IV smaller in F. vestita than in F. flavicoxae sp. nov.

Description. Male ( Bolivia, La Paz, Road to Coroico, 16º13’45.0”S, 67º49’17.1”W, 2732m, 30.xi.2010, R. Pinto-da-Rocha, A. Benedetti, J. Ochoa & A. Sarabia—MZSP). Measurements: dorsal scutum length: 4.5; dorsal scutum width: 4.8; femur IV length: 6.0.

Dorsum ( Figs. 1 View FIGURE 1 C and 8C). Elevated (non-flattened) carapace and dorsal areas; dorsal scutum type gamma. Anterior margin of carapace with a row of tubercles and frontal hump small-tuberculate. Anterior corners of carapace with 2 high tubercles (internal largest). Carapace small-tuberculate, less conspicuous in the colored patches. Elevated and dome-shaped ocularium, with a paramedian pair of large, pointed tubercles. Scutal grooves I–IV inconspicuous, lateral borders of dorsal scutum tuberculate, those near the middle part of the lateral margin enlarged and spiniform. Scutal areas I–IV each with a pair of spiniform tubercles, becoming larger towards the posterior margin. Area IV with one enlarged tubercle externally to each spiniform tubercle. Posterior margin of dorsal scutum with a paramedian pair of large posteriorly-curved spines and one row of 10 tubercles. Free tergites I–III each with one row of 9, 6 and 6 tubercles, respectively.

Venter ( Fig. 2 View FIGURE 2 C). Coxa I with larger tubercles than those of II–IV; coxae II–IV covered with sparse tubercles; coxa IV apically with larger spiniform tubercles. Genital operculum with small setiferous tubercles; stigmatic area covered with small sparse tubercles. Tubercles on the middle of sternite I inconspicuous. Sternites I–V each with a row of 24, 18, 15, 12 and 6 tubercles, respectively. Sternite V with 3 large paramedian spines. Anal operculum with sparse, rounded tubercles of many sizes, and a prominent group on its basal extremity: a basal median pair and a distal group of 6.

Chelicera: Base of segment I densely covered with similar sized tubercles; bulla covered with sparse rounded tubercles and with spiniform tubercles at its base. Segments II–III with 5 and 7 teeth, respectively.

Pedipalp ( Figs. 4 View FIGURE 4 C–D and 5C–D). Coxa with a row of spiniform tubercles on ventro-apical margin. Trochanter with a pair of ventro-apical tubercles and many small dorsal tubercles. Femur ventrally flattened, with a ventroapical tubercle curved prolaterally, a prominent ventral row of tubercles of 7 and dorsally with rounded tubercles. Tibia ventrally concave. Tibia and tarsus dorsal region and lateral margins with many delicate and long setae.

Legs ( Fig. 3 View FIGURE 3 C–D). Coxa I with a large prolateral and a small retrolateral apophysis, the latter placed near the prolateral apophysis of coxa II. Coxa II with a prolateral and a retrolateral apophysis, the latter placed near the prolateral apophysis of coxa III. Coxa III with a prominent prolateral apophysis. Coxa IV tuberculate, wide, entirely visible in dorsal view, its length reaching as far as the free tergite III, with a large apical, prolateral apophysis small-tuberculate. Trochanters I–IV with sparse dorsal tubercles. Trochanters I–III with large ventral rounded tubercles. Trochanter III with a large retrolateral tubercle. Trochanter IV with 3 large protuberances: an apical prolateral one curved dorsally, an apical retrolateral bifid one and a median retrolateral simple one. Femur IV slightly curved dorsally. Femora–metatarsi I–III with longitudinal rows of small pointed tubercles. Femur– metatarsus IV with longitudinal rows of large pointed tubercles. Enlarged basitarsi I and III. Tarsal segmentation: 5(3), 8–9, 5, 5.

Color: In ethanol ( Fig. 8 View FIGURE 8 C). Pale yellow patches (centroid 92) on the lateral of the ocularium and covering scutal areas I–IV, slightly interrupted in the median parts of the scutal grooves. Dorsal scutum brown (centroid 81) with orange stains (centroid 71). Tubercles of dorsal scutum and scutal areas I–IV brown. Margins of free tergites and sternites orange with brown. Anal operculum pale yellow with brown tubercles. Base of cheliceral segment I orange, bulla brown dappled orange and segments II and III orange dappled brown. Pedipalp orange and brown. Coxae orange with its stains, tubercles and apophyses brown. Trochanter tubercles brown. Trochanters bases and femora I–III orange-yellow (centroid 70). Trochanter and femur IV orange. Legs’ spines, femora distal part, patellae, tibiae and basitarsi brown. Distitarsi orange-yellow. Live specimen ( Fig. 9 View FIGURE 9 C). With comparatively more vivid colors, pale-yellow colors replaced by yellow (centroid 86), brown by dark brown (centroid 65), orange by deep-orange (centroid 51) and orange-yellow by a more vivid orange-yellow (centroid 67).

Male genitalia ( Figs. 6 View FIGURE 6 C–D and 7C–D). Two pairs of small macrosetae on truncus (group B). Ventral plate with concave distal and latero-subapical margins; 3 pairs of apical macrosetae (group C), a straight basal one (C3) and 2 distal, large and curved ones (C1 + C2); 2 latero-basal pairs of setae (group D pair largest, group A basal); 2 median pairs of small setae on the ventral plate, visible only in lateral view (group E). Glans wrinkled and stylus laterally flattened. Stylus’ apex with 3 ventro-apical projections, their apexes touching 3 small dorso-apical projections, in a flower bud-like shape.

Variation in males (N=6). Measurements: dorsal scutum length: 3.8–5.0; dorsal scutum width: 4.5–5.0; femur IV length: 5.4–6.4. Dorsum: set of 2–4 high tubercles on the anterior lateral carapace. Row of 8–13 tubercles on the posterior scutal margin. Free tergites I–II with 7–9 and 5–6 tubercles, respectively. Venter: sternites I–V each with a row of 23–26, 18–22, 14–17, 10–15 and 4–6 tubercles, respectively. Group of 4–8 rounded tubercles on the basal extremity of the anal operculum. Chelicera: Segments II–III with 5–6 and 6–8 teeth, respectively. Pedipalp: 2–3 prominent ventro-apical tubercles on trochanters; femur with ventral row of 5–8 tubercles. Legs: coxa IV with group of 3–5 large ventro-apical tubercles (bifid or unbranched). Color: patches may cover only margins of scutal areas I–IV.

Female (N=6) Measurements: dorsal scutum length: 4.0–5.2; dorsal scutum width: 4.0–5.0; femur IV length: 4.7–5.1. Dorsum ( Figs. 1 View FIGURE 1 D, 8D and 9D): ocularium unarmed in some specimens. Posterior scutal margin with a row of 8–14 spiniform tubercles. Free tergites I–III each with a row of 11–13, 7–11 and 5–8 tubercles (varying in size from small to large), respectively. Venter: sternite V without paramedian spines. Basal extremity of the anal operculum with a basal group of 5–15 rounded tubercles; 1 tubercle can occur between the median pair of tubercles. Legs: coxae II and III ventrally with smaller and less tubercles than in male. Trochanters I–III with small ventral tubercles. Coxa IV without ventro-apical group of spiniform tubercles, with only small, sparse tubercles on is place. Coxa IV narrower, reaching near the scutal area IV, with a small dorso-apical apophysis. Trochanter IV unarmed, without enlarged tubercles. Basitarsi I and III normal-sized. Tarsal segmentation: tarsus II with 7–9 segments.