Cajacaybia spinigera 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 Benedetti, Alipio Rezende Pinto-da-Rocha, Ricardo Arthropod Systematics & amp; Phylogeny 2022 2022-08-16 80 309 388 9X65S http://zoobank.org/17FB2FC0-26E8-4FA5-9F79-877E9A4A903E Benedetti & Pinto-da-Rocha 2022 Arachnida Metasarcidae Ayacucho CoL Animalia Ayacucho roeweri Opiliones 0 309 Arthropoda species roeweri nom. nov.   Figs 2H , 28   Cajacaybia spinigeraRoewer, 1957: 74 (desc.), figs. 27 (dorsal habitus), 28 (pedipalpus); Kury, 2003: 144 (cat.).  Redescription.  FEMALE: Measurements( n=1) DWS: 3.6; DSL: 4.0; CL: 1.4. FIVL: 3.5. ChL: 1.3. Coloration(in ethanol): Uniformly yellowish (reddish-brown, in the original description), with darker spots on the carapace, especially behind ocularium and legs. Dorsum: (Fig. 2H) Alpha-type DSS, with wide coda. Anterior margin of dorsal scutum with a median elevation; with granules sparsely distributed on the lateral regions of DS. Ocularium with a pair of long spines; with granules sparsely distributed. Carapace with few granules in lateral regions to predominantly smooth near its posterior margin. Areas I-IV with granules sparsely distributed; I with a paramedian pair of tubercles; II-IV with a median pair of small tubercles, of equal size, but larger than those on area I. Lateral margins of dorsal scutum with granules sparsely distributed. Posterior margin of dorsal scutum with a row of larger blunt tubercles, with a more acuminate median tubercle, interspersed with smaller tubercles. Free tergites I-II with a row of small blunt tubercles, with a large median acuminate tubercle, projecting backwards. Free tergite III with a row of granules and a median pair of acuminate tubercles that are smaller than those on tergites I-II. Chelicerae. (Fig. 2H) Not swollen. Segment I granulate. Segment II predominantly smooth, two teeth on the finger. Segment III with three teeth.  Pedipalpus. Small granules distributed on the dorsal surface of the femur. Trochanter with a ventrodistal setiferous tubercle. Femur with a row of five tiny ventral tubercles, slightly larger than the dorsal ones. Tibia: prolateral III, retrolateral iiIi. Tarsus: prolateral IIii, retrolateral iIiii. Venter. Coxae I-IV smooth. Between the coxae II-III and III-IV with a minute tubercle on the apical part. Genital area smooth. Free sternites without granules. Anal operculum smooth. Legs. (Fig. 2H) Coxae I-II each with one prolateral and one retrolateral apophysis; III with prolateral apophysis; IV with granules distributed throughout its surface, and a prodistal apophysis with acuminate apex. Trochanters I-III smooth; IV with few dorsal median granules and a retroapical acuminate tubercle. Femora I-III with few granules sparsely distributed; IV densely granulate; with a retrolateral row of 10 small acuminate tubercles. Patellae-tibiae I-IV smooth. Tarsal segmentation: ( n=1) 7, 12, 8, 8. - MALE: unknown.   Figure 12.Penis of Metasarcidae, dorsal and lateral views, respectively. A- B  A. bambamarca(Roewer, 1957) comb. nov.; C- D  Ayacucho inermis(Roewer, 1957) comb. nov.; E- F  Ayacucho pasolinii sp. nov.; G- H  Ayacucho spielbergi sp. nov.; I- J  Ayacucho titschackiRoewer, 1949; K- L  Ayacucho triarmatus nom. nov.; Legend bars = 0.1 mm.  Diagnosis. It differs from other species of the genus with known females by having a high median spine in the free tergites I-II (Fig. 2H).  Remarks. Considering that  Cajacaybia spinigeraand  Palcares spinigerwere described in the same work ( Roewer 1957), we established the precedence of  Palcares spinigername (Art. 24.2 of ICZN). Therefore, since they are both species in the genus  Ayacucho,  Cajacaybia spinigeraRoewer, 1957 is a secondary homonym of  Palcares spinigerRoewer, 1957 and must be replaced. Consequently, we create  Ayacucho roeweri nom. nov.as a replacement name for Roewer'sname.   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 argenteusKury & Maury, 1998; G- H  Incasarcus dianaeKury & Maury, 1998; I- J:  Incasarcus pictusKury & Maury, 1998; Legend bars = 0.1 mm.  Derivatio nominis. The specific epithet of masculine gender, in the genitive form, dedicated to the German arachnologist Carl Friedrich Roewer (1881-1963), the author of original name in secondary homonymy.  Distribution. (Fig. 28) PERU. Ancash. Cajacay.  Material examined.     Typematerial: Hototype ♀, ' PERU. Ancash. Cajacay, Rio Fortaleza,  2,700 ma.s.l., 5/III/1956, Weyrauchleg. (SMF RII 11645/28). 3889641335 RII 11645 1956-03-05 Weyrauch PERU Hototype 2700 Rio Fortaleza Cajacay ♀ Ancash Type