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 Author Benedetti, Alipio Rezende Departamento de Zoologia, Instituto de Biociencias, Universidade de Sao Paulo, Caixa Postal: 11.461, 05422 - 970, Sao Paulo, SP, Brazil & Instituto Federal de Minas Gerais, campus Sao Joao Evangelista, Av. Primeiro de Junho, 1043, Sao Joao Evangelista, MG, Brazil alipiobenedetti@gmail.com Author Pinto-da-Rocha, Ricardo https://orcid.org/0000-0002-3959-2205 Departamento de Zoologia, Instituto de Biociencias, Universidade de Sao Paulo, Caixa Postal: 11.461, 05422 - 970, Sao Paulo, SP, Brazil text Arthropod Systematics & amp; Phylogeny 2022 2022-08-16 80 309 388 http://dx.doi.org/10.3897/asp.80.e73829 journal article http://dx.doi.org/10.3897/asp.80.e73829 1864-8312-80-309 D5C0468B99A14EF39237D9BC51A8BDA3 11907D1B6F665D96B5FD2F9751431366 3.48. Metasarcus vacafloresae sp. nov. Figs 5I , 10O, P , 20D-F , 26E, F , 31 Description. MALE: Measurements (n=4) DSW: 4.2-4.9 (4.7); DSL: 5.1-5.4 (5.4); CL: 2.1-2.5 (2.5). FIVL: 13.0-14.2 (14.2). ChL: 2.9-4.2 (3.6). Coloration : (Fig. 26E ) Orange brown. Brown spots on the carapace and on the lateral margins of DS. Free tergites I-III and anal operculum dark brown. Reddish brown legs, except for the coxae and trochanters, in a lighter shade of orange brown. Dorsum : (Fig. 5I ) Kappa-type DSS, with straight posterior margin of DS; constriction II present, coda long. Anterior margin of the carapace with median elevation, with few granules. Ocularium with very subtle median depression, almost inconspicuous. Carapace with sparse granules. DS with four areas covered by few granules, unarmed. Area I undivided. Lateral margins of DS with rows of granules in greater density than in the dorsal areas of the DS and carapace. Posterior margin of DS and free tergites I-III unarmed and with few granules. Chelicerae : (Fig. 5I ) Swollen in large males (as in the holotype), similar to females in the small males. Segment I with sparse small granules. Segment II smooth, swollen in some males, finger with one tooth. Segment III with two teeth. Pedipalpus : Sparse granules throughout the appendage, less numerous on the ventral surfaces. Coxa with a small retrobasal tubercle. Trochanter with two ventroapical setiferous tubercles, the apical one being smaller. Femur with a row of five ventral setiferous tubercles, two more basal and three median and a proapical spine. Patella smooth. Tibia: prolateral iIiIIi, retrolateral IIii. Tarsus: prolateral iiIiIii, retrolateral iIiIi. Venter : Coxa I with a median row of five setiferous tubercles, a parallel row of small tubercles and scattered granules. Coxa II covered with sparse granules; with an apical row of two-three setiferous tubercles. Coxa III with a proventral row of five tubercles and a retroventral row of eight. Coxa IV with sparse granules. Smooth genital area. Free sternites and anal operculum with few granules. Legs : (Figs 5I , 10O, P ) Coxa I with a retrolateral apophysis. Coxa II with one prolateral and two retrolateral apophyses. Coxa III unarmed. Coxa IV with sparse small granules. Trochanters with sparse granules. Femora I-IV straight, unarmed and with granules. Tarsal formula: ( n =4) 8, 17-18 (18), 10-11 (10), 12-13 (13). Penis : (Fig. 20D-F ) VP subrectangular, long, with apex narrower than the base; convex distal margin; curved in lateral view. MS C1-C3 subdistal long and straight (or slightly curved); MS A1 sub basal long and straight (slightly shorter than MS C); MS B1 basal (near lateral sacs) long and straight (or apically curved); MS D1 short and straight, medially placed; MS E1-E2 very short, ventrally placed (MS E1 between MS C2 and MS C3; MS E2 near MS D1). Lateral sacs long and tapered; with long T3-like microsetae. Stylus with wide apex and projections. Dorsal process long and apically tapered. Promontory convex. - FEMALE: Measurements ( n =5) DSW: 4.1-4.5; DSL: 5.0-5.7; CL: 2.1-2.3. FIVL: 12.7-14.6. ChL: 2.3-2.6. (Fig. 26F ) Chelicerae smaller than in males. Tarsal segmentation: ( n =5) 7-8, 14-16, 10-11, 11-13. Figure 29. Distribution of Huancabamba gen. nov. , Lumieria gen. nov. and Tschaidicancha in Peru. A H. kubricki gen. et sp. nov. , L. antonionii gen. et sp. nov. , T. chaplini sp. nov. , T. scorsesei sp. nov. , T. weyrauchi ; B L. woodyalleni gen. et sp. nov. , T. joseochoai sp. nov. Diagnosis. It differs from other species of the genus by the following set of characteristics: alpha type DSS; scutal area I undivided; areas I-IV unarmed (Fig. 5I ); male femur IV unarmed (Fig. 10O, P ); body orange brown (Fig. 26E ); VP subrectangular and long; dorsal process present (Fig. 20D-F ). Derivatio nominis. The specific epithet of feminine gender, in the genitive form, in honor to Maria Rene Vacaflores, from Coleccion Boliviana de Fauna (CBF), who provided invaluable help with all formalities for collecting in Bolivia. Distribution. (Fig. 31 ) BOLIVIA. La Paz. Zongo. Material examined. Type material : Holotype ♂ , ' BOLIVIA , La Paz , Zongo , 16°10′32.4″S 68°08′11.9″W , 10/XII/2010 , R. Pinto-da-Rocha , A. Benedetti , J. Ochoa & A. Saravia leg. (CBF) - Paratypes 2 ♂ , 5 ♀ , 'ditto' (CBF); Paratypes 4 ♂ , 6 ♀ , 'ditto' (MZSP 36998).