Sertaneja bicuspidata, Saraiva & Hara & DaSilva, 2021

Saraiva, Nicolas Eugenio de Vasconcelos, Hara, Marcos Ryotaro & DaSilva, Marcio Bernardino, 2021, Harvestmen in the semiarid: a new genus and three new species of Pachylinae (Opiliones: Gonyleptidae) from Caatinga dry vegetation, with a cladistic analysis, Arthropod Systematics & amp; Phylogeny 79, pp. 485-507 : 485

publication ID	https://dx.doi.org/10.3897/asp.79.e66321
publication LSID	lsid:zoobank.org:pub:3C3B731E-89B4-4D1B-9E03-47BED83F8530
persistent identifier	https://treatment.plazi.org/id/4C09C7B0-0FF4-4ED4-9BCD-78FC1E8B9A31
taxon LSID	lsid:zoobank.org:act:4C09C7B0-0FF4-4ED4-9BCD-78FC1E8B9A31
treatment provided by	Arthropod Systematics & Phylogeny by Pensoft
scientific name	Sertaneja bicuspidata
status	sp. nov.

Treatment

3.3.3. Sertaneja bicuspidata sp. nov.

Figs 3 View Figure 3 , 4 View Figure 4 , 5 View Figure 5 , 12B View Figure 12 , 13 View Figure 13

Type locality.

BRAZIL, Ceará: Ubajara, Parque Nacional de Ubajara.

Type material.

Holotype. BRAZIL. Ceará: Ubajara PARNA de Ubajara, Rio Gameleira, elev. 840 m, 27.i.2014, DaSilva M.B. Saraiva N.E.V. and Sampaio C., ♂ (UFPB OP-163) [dissected]. Paratypes. BRAZIL. Ceará: Quixadá, Serra do Estevão, estrada para Dom Maurício, elev. 482 m, 18.iv.2014, DaSilva M.B. and Saraiva N.E.V., 1 ♂ (UFPB OP-724) [dissected]; Quixadá, Serra do Urucu, Santuário de Nossa Senhora Imaculada Rainha do Sertão, elev. 344 m, 19.iv.2014, DaSilva M.B. and Saraiva N.E.V., 1 ♂ 2 imm (MZUSP 76645) [male genitalia used for SEM], 1 ♂ (MNRJ 60616) [dissected]; Quixadá, Jardim dos Monólitos, inselbergs do Açude Euclides, elev. 180-200 m, 20.iv.2014, DaSilva M.B. and Saraiva N.E.V., 1 ♀ (UFPB OP-726) [female description].

Diagnosis.

This species can be distinguished from the other species of the genus by the denser tuberculation of the body surface (Fig. 3A View Figure 3 ); scute area III paramedian pair of spines enlarged and slightly more robust when compared to S. crassitibialis sp. nov. (Fig. 3A, C View Figure 3 ); coxa IV with uniquely shaped bifid prodorsal apical apophysis and conical retro-apical apophysis (Fig. 3A, D View Figure 3 ); trochanter IV with the largest retro-apical apophysis among the genus, and a large proapical apophysis curved dorsally (Figs 3D View Figure 3 , 4 View Figure 4 ); femur IV with a retro-lateral row of large conical apophyses (Fig. 4A, D View Figure 4 ). It most resembles S. falcata sp. nov. by the male femur IV dorsal row with equally sized high tubercles; penis glans’ stylus straight and with a rounded dorso-apical projection; VP macrosetae conical, MS A and MS B sets adjacent, and MS D pairs closer to each other and to MS C set (Fig. 5 View Figure 5 ).

Description.

Holotype MALE (UFPB OP-163; Figs 3 View Figure 3 - 4 View Figure 4 ): Measurements: DSL: 4.86; DSW: 4.97; LI: 9.13; LII: 17.62; LIII: 10.78 (broken metatarsus); LIV: 15.48. Dorsum (Fig. 3A, C, G View Figure 3 ): DS anterior margin with a pair of small tubercles on each side. Prosoma covered with distinctive large tubercles concentrated on the middle of posterior half. Ocularium tuberculate, with a pair of spines slightly longer than the ocularium height, and a pair of large tubercles just behind (Fig. 3C View Figure 3 ). Two pairs of ozopores of similar size, anterior one placed more laterally, and posterior one more rounded and slightly dislocated dorsally; lateral channel well developed followed by distinguished tuberculate oblong sensorial pegs. Scute areas I-IV densely tuberculate, tubercles increasing in size medially. Scute area III paramedian pair of spines recurved, slightly reaching scute area IV. Lateral margin of DS with an external row of tubercles increasing in size towards scute area II, becoming slightly acuminated (Fig. 3C View Figure 3 ). Posterior margin of DS and free tergites I-III each with a transversal row of tubercles. Free tergite I with tubercles increasing in size medially. Anal operculum tuberculate. Venter: Coxa I with three longitudinal rows of tubercles increasing in size apically, median row largest; coxae II-III with slightly enlarged apical tubercles; coxa IV tuberculate. Chelicerae: Segment I with a transversal row of five tubercles on the posterior face of bulla. Fixed and movable fingers with five and four teeth; respectively. Pedipalps (Fig. 3E, F View Figure 3 ): Trochanter inflated dorsally, ventral face with a pair of setiferous tubercles, mesal largest (Fig. 3E View Figure 3 ). Femur with a dorsal median row of five tubercles, ventral face with a basal large setiferous tubercle (Fig. 3E, F View Figure 3 ); an external lateral row of five tubercles. Tibial setation: mesal and lateral IiIi/Iii. Tarsal setation: mesal IIi, lateral IiIi. Legs (Figs 3D View Figure 3 , 4 View Figure 4 ): Coxae I-IV each with one prodorsal and one retro-dorsal apophysis; coxa II with a trifid retro-lateral apophysis. Coxa IV bearing a robust, bifid, prodorsal apical apophysis, almost square-shaped, the large branch pointing backwards and the smaller one almost transversal, obliquely angled (Fig. 3D View Figure 3 ); and a conical retro-lateral apophysis, comparable in size and shape with the small, transversal branch of the prolateral one (Fig. 3D View Figure 3 ). Trochanter IV apically swollen in dorsal view, prolateral surface with a short, blunt, conical, basal apophysis, and a large, apical apophysis, perpendicular in lateral view, dorsally curved along its entire length, bearing a basal small acute straight apophysis pointing posteriorly (Fig. 4B View Figure 4 ); retro-lateral face with a basal short conical apophysis (ca. same size as the coxa IV retro-lateral apophysis), a sub-apical small, straight, transversal conical apophysis, and a long, straight apical apophysis 2/3 the length as the podomere (Fig. 4 View Figure 4 ). Femur III slightly curved in dorsal view, with a paralateral pair of dorso-apical tubercles (retro-dorsal largest); ventral surface with two rows of tubercles increasing in size apically from their apical half, prolateral ones larger. Femur IV slightly curved inwards and upwards; dorsal surface with a median row of five enlarged, blunt, conical tubercles placed between the sub-basal and sub-apical regions of the podomere (Fig. 4B View Figure 4 ); dorso-apical surface with two paralateral large spines; prolateral row of low rounded tubercles; retro-lateral row of seven high apophyses roughly decreasing in size apically, the large basal ones approximately the same size as the trochanter IV retro-apical apophysis (Fig. 4A View Figure 4 ); two ventral rows of tubercles, proventral row with seven enlarged, blunt, conical tubercles on the basal half, retro-ventral row of small rounded tubercles (Fig. 4C View Figure 4 ); ventro-apical surface with a pair of paralateral enlarged acuminated tubercles, ca. three times the size of the immediately following tubercles (prolateral largest). Patella IV covered with conical tubercles that increase in size apically, ventral face with two rows of tubercles increasing in size apically, retro-lateral ones larger. Tibia IV covered by conical tubercles, ventral row of tubercles slightly increasing in size apically (Fig. 4B, D View Figure 4 ). Tarsal counts: 6, 10, 6, 6. Penis (UFPB OP-725; Fig. 5 View Figure 5 ): Glans stylus cylindrical. VP apex convex with a slight median concavity, lateral margins slightly concave presenting a subtle constriction on its medial portion. VP bearing three paralateral pairs of MS A in a tight cluster in lateral view (Fig. 5B View Figure 5 ); one pair of MS B of same size as MS A, placed more basally and adjacent to the MS A cluster; three pairs of MS C, the apical spine slightly smaller; MS D set closer to MS C group, setae close to each other; and two pairs of reduced, sub-apical, ventro-lateral MS E positioned between the MS C setae (not visible in the SEM photograph, but confirmed in the other dissected males). Coloration: DS, tergites I-III, chelicerae, pedipalps coxae, coxae I-IV, and leg IV general coloration strong yellowish brown (74). DS with posterior and lateral margins bearing a moderate yellowish brown (77) outline; scute areas, prosoma and ocularium with moderate yellowish brown (77) granulation. Pedipalps trochanter-tibia, and legs I-III dark yellow (88).

FEMALE (UFPB OP-726; Fig. 3B View Figure 3 ): Measurements: DSL: 4.34; DSW: 4.20; LI: 8.32; LII: 15.48; LIII: 10.77; LIV: 14.27. Dorsum: DS gamma (γ), but coda section is slightly longer. Ocularium spines length as tall as the ocularium. Scute area III central armature shorter than male and more acuminated. Scute area IV with median pair of tubercles more conspicuous than male. Posterior margin of DS and free tergites I-III each with leaner tubercles on the sides. Legs: Coxa IV narrower and shorter than in male, with a short, conical, proapical apophysis obliquely inserted; retro-apical apophysis reduced. Trochanter III retro-apical projection smaller than in male. Trochanter IV shorter than in male, apical half swollen, bearing a terminal tubercle, with unarmed prolateral face; retro-lateral face with short basal apophysis, and blunt apical apophysis smaller than in male. Femur III ventral row and ventro-apical tubercles smaller than in male. Femur IV dorso-medial row with small and slender projections on basal 4/5; a retro-lateral, a proventral and a retro-ventral rows of small conical tubercles; dorso-apical and ventro-apical paralateral projections reduced. Tibia III proventral and retro-ventral rows of small granule-like tubercles. Patella-tibia IV dorsal face covered by conical blunt tubercles. Tarsal count: 6, 9-10, 6, 6.

Variation.

Males (n = 4): Measurements: DSL: 4.33-4.86; DSW: 4.47-4.97; LI: 8.52-9.13; LII: 15.60-17.62; LIII: 10.78-12.30; LIV: 14.25-15.83. Dorsum: Ocularium spines as tall as, or slightly taller than the ocularium. Scute area III paramedian pair of spines medium to large, length reaching backwards up to halfway of scute area IV. Pedipalps: Pedipalpal setation: tibial mesal IiIi, lateral IiIi/i-Ii; tarsal mesal IIi/IIii, lateral IiIi/Iii. Legs: Minor males, compared to major males as the holotype, with less developed armature on scute area III and weaker armature of legs: coxa IV narrower and shorter, prodorsal apical and retro-apical apophyses smaller and slender (on major males prodorsal apical apophysis shorter projection can be acuminate); trochanter III retro-lateral projection reduced; trochanter IV all apophyses smaller; femur III prolateral and ventral rows of tubercles less developed, with smaller proapical tubercles; femur IV pro- and ventro-apical tubercles smaller; tibia IV proventral and retro-ventral rows reduced. Tarsal count: 6, 9-10, 6, 6.

Etymology.

‘Bicuspidata’ is a Latin adjective (adj. perf. part., nom. fem.) that refers to the diagnostic bifid apophysis of male coxa IV in this species.

Distribution (Fig. 13 View Figure 13 ).

Caatinga shrublands and dry forests of northern interior Ceará and Brejos de Altitude humid montane forests of Ibiapaba mountains.