Incasarcus pictus Kury & Maury, 1998

Benedetti, Alipio Rezende & Pinto-da-Rocha, Ricardo, 2022, Systematic revision and total evidence phylogenetic analysis of the Andean family Metasarcidae Kury, 1994 (Opiliones: Laniatores), with description of two new genera and twenty new species, Arthropod Systematics & amp; Phylogeny 80, pp. 309-388 : 309

3.34. Incasarcus pictus Kury & Maury, 1998

Figs 4E , 9E, F , 13I, J , 30

Incasarcus pictus Kury & Maury, 1998: 149 (desc.), 160 (key), figs. 11 (male dorsal habitus, chelicerae, pedipalpus, trochanter-patella IV), 12 (penis dorsal view), 13 (penis lateral view), 14 (male lateral habitus), 15 (female dorsal habitus), 16 (male sternum and coxae I-IV), 17-20 (tarsi I-IV); Kury 2003: 145 (cat.).

Redescription.

MALE: Measurements (n =1) DSW: 4.9; DSL: 5.8; CL: 1.6. FIVL: 11.5. ChL: 3.2. Coloration (in ethanol): DS with conspicuous white spots, a pair of small rounded spots on carapace, behind ocularium and a large spot covering all area I. The remaining DS yellow with small black spots; chelicerae, pedipalpus, area III and legs I-III brown; leg IV black. Dorsum: (Fig. 4E ) Median elevation of anterior margin of carapace with granules. Ocularium with a mildly acute median depression; densely granular. Carapace densely granular. DS with granules densely distributed in areas I-II and more sparsely in III-IV. Areas I with a pair of small median tubercles, slightly larger than the granules present. Area III with a median pair of spines, directed posteriorly. Lateral margins of dorsal scutum with granules throughout their length. Posterior margin of dorsal scutum slightly granulate. Free tergite I-III with irregular row of acuminate tubercles of different sizes, the median largest. Chelicerae: (Fig. 4E ) Segment I with granules in distal part. Segment II with small granules throughout its length; finger with five teeth; Segment III with three teeth. Pedipalpus : Trochanter with one ventroapical setiferous tubercles. Femur with a ventral row of 7-8 setiferous tubercles and a proapical spine. Patella with a proapical tubercle. Tibia: retrolateral (ii)iiIii, prolateral IiIi. Tarsus: retrolateral iIIiIi. Venter: Coxa I with a median row of nine setiferous tubercles of varying sizes and with 2-3 small distal tubercles. Coxae II-IV with setiferous granules throughout their surface. Rows of tubercles between the coxae II-III and III-IV. Genital area slightly granulate. Free sternites with one row of granules. Anal operculum granulate. Legs: (Figs 4E , 9E, F ) Coxae I-II each one with a retrolateral and a prolateral apophysis. Coxa III unarmed. Coxa IV with scattered setiferous granules. Trochanters I-IV unarmed and granular (III-IV being the most densely granular). Femora I-III with small sparse granules. Femur IV with small granules throughout its length; a retroventral row of 28-30 acuminate tubercles of equal size, occupying the entire length of segment; an apical proventral row with four tiny tubercles. Patellae I-III unarmed. Patella IV with a retroapical spiniform apophysis. Tarsal segmentation: (n=1) 12, 19-21, 11, 12-13. Penis: (Fig. 13I, J ) VP rectangular, elongated, with distal margin straight; MS C1-C2(C3) subapical long and apically curved; MS A1-A2 median to sub basal long and straight (A1 longer than A2; both with half length of MS C); MS D1-D2(D3) short, more dorsally placed, near MS C. Lateral sacs long, robust, with blunt apex; with long T3-like microsetae. Stylus long with apex swollen. Dorsal process absent. Promontory sharply convex. - FEMALE: Not examined. See Kury and Maury (1998) for details on female.

Diagnosis.

It differs from other species of the genus by the set of following characters: DS with white coloration on carapace (behind ocularium) and area I; DS granulate; ocularium and areas II and IV unarmed; area I with a pair of tubercles; area III with a pair of spines; free tergites I-III with a row of tubercles (Fig. 4E ); male femur IV with a retroventral row of 28-30 acuminate tubercles and an apical proventral row with four tiny tubercles (Fig. 9E, F ).

Distribution.

(Fig. 30 ) PERU. Cusco. Wiñayhuaina.

Material examined.

Type material: Holotype ♂, ' PERU, Cusco, Wiñayhuaina, Inca trail, 2,700-3,100 m a.s.l., 13°09′S 72°31′W, 10/II/1990, D. Silva leg. (MUSM 408).

Figures

Figure 4. Habitus, dorsal of males of Huancabamba gen. nov. and Incasarcus. A H. kubricki gen. et sp. nov.; B I. argenteus Kury & Maury, 1998; C I. dianae Kury & Maury, 1998; D I. ochoai Kury & Maury, 1998; E I. pictus Kury & Maury, 1998; F I. viracocha Kury & Maury, 1998; Legend bars = 1 mm.

Figure 9. Male trochanter-patella / tibia IV of Incasarcus. A - B Trochanter-tibia IV of I. argenteus Kury & Maury, 1998, dorsal and ventral view, respectively; C - D Trochanter-tibia IV of I. dianae Kury & Maury, 1998, dorsal and ventral view, respectively; E-F Trochanter-tibia IV of I. pictus Kury & Maury, 1998, dorsal and ventral view, respectively; G - H Trochanter-tibia IV of I. viracocha Kury & Maury, 1998, dorsal and ventral view, respectively; I Trochanter-patella of I. viracocha, lateral view; J Trochanter-patella of I. ochoai Kury & Maury, 1998, large male, dorsal view; K - L Trochanter-tibia of I. ochoai, small male, dorsal and ventral view, respectively; M Trochanter-patella of I. ochoai, large male, lateral view; N Trochanter-patella of I. ochoai, small male, lateral view; Legend bars = 1 mm.

Figure 13. Penis of Metasarcidae, dorsal and lateral views, respectively. A - B A. vargasllosai sp. nov.; C - D A. weyrauchi (Roewer, 1952) comb. nov.; E - F Incasarcus argenteus Kury & Maury, 1998; G - H Incasarcus dianae Kury & Maury, 1998; I - J: Incasarcus pictus Kury & Maury, 1998; Legend bars = 0.1 mm.

Figure 30. Distribution of Incasarcus in Cusco, Peru.