Ayacucho Roewer, 1949

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

publication ID	https://dx.doi.org/10.3897/asp.80.e73829
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scientific name	Ayacucho Roewer, 1949
status

Treatment

3.10. Ayacucho Roewer, 1949

Figs 2 View Figure 2 , 3 View Figure 3 , 7 View Figure 7 , 8 View Figure 8 , 12 View Figure 12 , 13A-D View Figure 13 , 15 View Figure 15 , 16 View Figure 16 , 17A-C View Figure 17 , 22 View Figure 22 , 23 View Figure 23 ; 28 View Figure 28

Ayacucho Roewer, 1949: 57 (desc); Rambla 1978: 304 (cit); Kury 2003: 144 (cat, syst); Kury and Villarreal 2015: 5, 14 (cit). Type species: Ayacucho titschacki Roewer, 1957 (by original designation).

Ayachuco [lapsus calami]: Caporiacco 1951: 9 (cit)

Cajamarca Roewer, 1952: 41 (desc); Roewer 1957: 75 (desc); Rambla 1978: 304 (cit); Kury and Maury 1998: 145 (syst); Kury 2003: 144 (cat); Kury and Villarreal 2015: 5, 14, 23 (cit). Type species Cajamarca weyrauchi Roewer, 1952 (by original designation). syn. n.

Cargaruaya Roewer, 1956: 439 (desc); Rambla 1978: 304 (cit); Kury 2003: 144 (cat, syst). (Type species Cargaruaya insignita Roewer, 1956, by original designation). syn. n.

Palcares Roewer, 1957: 72 (desc); Roewer 1959: 70 (desc); Rambla 1978: 304 (cit); Kury 2003: 145 (cat, syst) (Type species Palcares spiniger Roewer, 1957 by original designation). syn. n.

Cajacaybia Roewer, 1957: 73 (desc); Rambla 1978: 304 (cit), Kury 2003: 144 (cat, syst). (Type species Cajacaybia spinigera Roewer, 1957, by original designation). syn. n.

Pinocchio [in part] Roewer, 1957: 70 (desc).

Tapacochana Roewer, 1957: 73 (desc); Roewer 1959: 69 (desc); Rambla 1978: 304 (cit); Kury 2003: 145 (cat, syst) (Type species Tapacochana insignita Roewer, 1957 by original designation). syn. n.

Distribution.

PERU. Ancash, Ayacucho , Cajamarca , Huan-cavellica, Junín, La Libertad and Pasco (Fig. 28 View Figure 28 ).

Diagnosis.

Ayacucho can be differentiated from all other Metasarcidae genera by its short leg IV (femur IV length/DS length <1.5). Most of its species can be distinguished from other genera by having, alpha-type DSS; a femur of pedipalpus slightly flattened and males without a proapical spine (present in all other genera), an ocularium high and rounded and a DS densely granulated.

Redescription.

Alpha-type DSS (Figs 2C, F, G View Figure 2 ), except for A. spielbergi sp. nov. (gamma-type; Fig. 2A View Figure 2 ) type. Femur of pedipalpus slightly flattened (except for A. spielbergi sp. nov.) and generally armed in ventral surface; males without a proapical spine; females armed with a proapical spine (absent in some species of " Ayachuco silvae clade", A. spielbergi sp. nov. and A. pasolinii sp. nov.) Ocularium high and rounded in most species (Fig. 2A-C View Figure 2 ); low, medially depressed ( A. pasolinii sp. nov., A. spielbergi sp. nov., A. spiniger comb. nov., e.g. Figs 2E View Figure 2 , 3A View Figure 3 ). Ocularium with two low tubercles or high spines (most species). Areas of dorsal scutum moderately ( A. pasolinii sp. nov., A. spielbergi sp. nov., A. weyrauchi comb. nov., e.g. Figs 2E View Figure 2 , 3A View Figure 3 ) to densely tuberculate (most species, e.g. Fig. 2B, C View Figure 2 ). Area I undivided. Area III unarmed ( A. silvae sp. nov., A. uniseriatus comb. nov., A. weyrauchi comb. nov., e.g. Fig. 3H View Figure 3 ), armed with two tubercles (most species, e.g. Fig. 2C View Figure 2 ), or armed with two high spines ( A. pasolinii sp. nov., A. spielbergi sp. nov., e.g. Fig. 2E View Figure 2 ). Posterior margin of DS small tuberculate (Fig. 2C View Figure 2 ), or armed with a pair of high tubercles (Fig. 3B View Figure 3 ) or a row of high tubercles. Coda elongate, with constriction in most species (Fig. 3D-F View Figure 3 ). Coxa III with two apophyses (execpt in A. pomacocha sp. nov. and A. spielbergi sp. nov.). Coxa IV reaching area III or sulcus IV (Fig. 3D-F View Figure 3 ). Coxa IV armed with an acute long tubercle in most species (Fig. 3H View Figure 3 ), or unarmed ( A. pasolinii sp. nov., A. pomacocha sp. nov., A. silvae sp. nov., A. titschacki , e.g. Fig. 3G View Figure 3 ). Femur IV shorter than dorsal scutum length in most species or longer ( A. tapacocha nom. nov., A. spiniger comb. nov.). Less than 10 MS C. Penis stylus thin. Penis VP thin (Figs 12 View Figure 12 , 15 View Figure 15 ).