Stygnus gertschi ( Roewer, 1963 )

Villarreal, Osvaldo, Ahumada-C, Daniela & Flórez, Eduardo, 2024, A glimpse into the diversity of Stygnus Perty, 1833: A new Colombian species and additional records from South America (Opiliones, Stygnidae), European Journal of Taxonomy 970, pp. 203-229 : 212-214

Stygnus gertschi ( Roewer, 1963)

Figs 5A–D , 13

Material examined

COLOMBIA – Cundinamarca (new department record) • 1 ♀; La mesa , San Francisco; [4.63° N, 74.46° W]; alt. 1200 m; 16 Nov. 2012; W. Galvis leg.; ICN-Ao 1195 . – Meta (new department record) • 1 ♂, 3 ♀♀; San Martín, Hato las Pampas , Reserva Natural Las Unamas ; 3°42′24.12″ N, 73°40′39.99″ W; alt. 300 m; 2 Jul. 2012; W. Galvis leg.; ICN-Ao 1095 • 1 ♀; Principal Villavicencio-Cumaral, vereda San José , Guatavia River ; 4°24′12.61″ N, 73°42′2.29″ W; alt. 467 m; 24 Jun. 1992; E. Triana leg.; ICN-Ao 2000 • 1 ♂, 1 ♀; same data as for preceding; L. Arévalo leg.; ICN-Ao 1891 • 1 ♂; Acacías, vereda La Esmeralda , Finca Versalles ; 03°57′36.69″ N, 73°42′12.95″ W; alt. 514 m; 21 Apr. 2004; E. Flórez, animal systematics students, Biol. UN leg.; ICN-Ao 412 • 2 ♀♀; San Martín, vereda Las Pampas , Reserva Las Unamas ; [3.57° N, 73.46° W]; alt. 300 m; 8–15 Jan. 2013; W. Galvis leg.; ICN-Ao 1190 • 2 ♂♂, 2 ♀♀; Villavicencio, Apiay ; [4.08° N, 73.56° W]; alt. 450 m; 14 Oct. 2003; manual collection, logs; A. Rico, V. Phandanauvong leg.; ICN-Ao 408 • 1 ♂, 1 ♀; Villavicencio, Apiay ; 04°5′11.24″ N, 73°34′11.62″ W; alt. 450 m; 14 Oct. 2003; E. Flórez, students of Biología UN, Curso Aracnología leg.; ICN-Ao 406 • 1 ♀; San Juan de Arama, Reserva la Macarena , Caño La Curia ; 03°17′6.80″ N, 73°54′21.02″ W; alt. 450 m; 18 Jan. 1992; F. Guzman, S. Espinosa leg.; ICN-Ao 64 • 1 ♀; Puerto López, Cafam llanos ; 04°02′19.5″ N, 72°45′71.3″ W; alt. 200 m; ICN-Ao 600 • 1 ♀; La Macarena, Puerto Marimba, Serranía Macarena , río Duda ; 02°32′5.48″ N, 73°55′45.08″ W; A. Calixto leg.; ICN-Ao 336 • 1 ♀; Villavicencio, Bosque Bavaria ; 04°13′57.62″ N, 73°38′32.87″ W; 14 May 2005; C. Rueda leg.; ICN-Ao 508 • 1 ♂; Puerto López; 04°02′19.5″ N, 72°45′71.3″ W; alt. 219 m; 1 May 2009; D. Luna leg.; ICN-Ao 712 • 1 ♂; Puerto López, Cafam Llanos, bosque Mata Mata ; 04°16′51.86″ N, 72°31′30.96″ W; Sep. 2003; ICN-Ao 662 • 2 ♂♂, 1 ♀; Cumaral, Finca Panitos ; [4.26° N, 73.48° W]; alt. 510 m; 15–16 Nov. 2001; MPUJ _ ENT 0094614 • 1 ♀; Pto. Gaítan, Altamira, Club Los Llaneros , Galería forest ; [4.36° N, 72.09° W]; alt. 145 m; 20 Oct. 2005; Pedraza leg.; MPUJ _ ENT 0094621 • 1 ♂; San Martín, Reserva Rey Zamuro-Matarredonda , Galería forest ; [3.51° N, 73.39° W]; 28 Aug.–1 Sep. 2017; Morris, Peña, Pinto leg.; manual collection; MPUJ _ ENT 0055169 • 1 ♀; San Martín, Reserva Rey Zamuro-Matarredonda , approx. 37 km ESE of San Martín; 03.53173° N, 73.40181° W; alt. 293 m; 28 Aug.–1 Sep. 2017; D. Osorio, A. Beltran leg.; MPUJ: ENT 0046868 • 4 ♂♂, 2 ♀♀; Pto. López, CAFAM ; [4.20° N, 72.52° W]; Sep. 1991; J. Ángulo leg.; MPUJ _ ENT 0094617 • 1 ♂; same data as for preceding; 29–31 Aug. 2022; J. Vargas leg.; manual collection; MPUJ _ ENT 0094622 • 1 ♂; same data as for preceding; 28 Aug.–1 Sep. 2017; C. Pineda leg.; manual collection; MPUJ _ ENT 0057026 • 1 ♀; Pto. Gaitán, Altamira, Club Los Llaneros , Sabana ; [4.36° N, 72.09° W]; alt. 140 m; 22 Oct. 2006; A. Sandoval, L. Vela, L. Linares leg.; MPUJ _ ENT 0094618 • 1 ♂; Remolinos, Centro CAFAM Llanos , aprox. 55 km W from Pto. Gaitán , Sabana ; 4.274963° N, 72.540814° W; alt. 165 m; 11–15 Mar. 2013; manual collection; S. Prieto leg.; MPUJ _ ENT 0094615 . – Casanare (new department record) • 1 ♂; Villanueva, Vereda Caimán alto; 21 Aug. 2010; D. Luna leg.; ICN-Ao 793 • 2 ♂♂; Villanueva ; 19 Jul. 2010; D. Luna, A. Rincón, C. Reina leg.; ICN-Ao 284 • 1 ♂, 1 ♀; Villanueva ; 04°36′8.53″ N, 72°55′29.34″ W; 20 Aug. 2010; A. Rincón, D. Luna and C. Reina leg.; ICN-AO 407 • 1 ♀; Tauramena, kiosko verde , Galería forest , aprox. 2.5 km SW from Tauramena; 5.00385° N, 72.77376° S; 8–12 Sep. 2014; J. Hernández leg.; MPUJ _ ENT 0027462 • 1 ♀; same data as for preceding; L. Trujillo leg.; MPUJ _ ENT 0026637 • 1 ♀; same data as for preceding; 25–29 Aug. 2014; A. Botache leg.; manual collection; MPUJ _ ENT 0024795 .

Doubtful record

Colombia: Department of Cauca ( Pinto-da-Rocha 1997; Kury 2003).

Remarks

The type locality is recordad by Roewer (1963) as “Columbien: Monteredoudo”. Pinto-da-Rocha (1997) corrected the name of this locality to “Monterredondo” and assigned it to the Cauca department, disregarding other potential homonymous localities. This correction was subsequently followed by Kury (2003). Helmut Sturm, a German taxonomist, made significant contributions to the understanding of jumping bristletails in Colombia, and collected the types of Stygnus gertschi . He conducted fieldwork in Colombia visiting various localities in the Cundinamarca department. During our study, we examined specimens of this species from localities in the departments of Meta and Cundinamarca, near a locality known as Monterredondo in the department of Cundinamarca. Based on this circumstantial evidence and the absence of confirmed specimens from Cauca, we propose that the true type locality of the species must be Monterredondo in Cundinamarca rather than Cauca.

Distribution

Colombia: Cundinamarca, Meta and Casanare, from 200 to 1200 m.

Figures

Fig. 5. Stygnus gertschi (Roewer, 1963) (ICN-Ao 1095). A. Detail of dorsal scutum and chelicerae. B. Habitus, panoramic dorsal view. C–D. Lateral view, detail (C) and panoramic (D) view and detail of the body and chelicerae. Scale bars = 1 mm.

Fig. 13. Maps showing the geographical distribution of the genus Stygnus Perty, 1833. A. Previous records in the literature and photographic records. B. New records for Colombia.