Potamobates tridentatus Esaki, 1926

Pacheco-Chaves, Bernald, Cordeiro, Isabelle Da Rocha Silva, Moreira, Felipe Ferraz Figueiredo & Springer, Monika, 2018, The water striders (Hemiptera: Heteroptera: Gerridae) of Costa Rica: new species, checklist, and new records, Zootaxa 4471 (3), pp. 493-522 : 501

Potamobates tridentatus Esaki, 1926

( Fig. 11 )

Previously recorded from Costa Rica (Guanacaste, Puntarenas, and San José provinces), Panama, and Colombia ( Esaki 1926b; Hungerford 1937, 1939; Kuitert 1942; Wheelwright & Wilkinson 1985; Manzano et al. 1995; Polhemus & Polhemus 1995; Molano et al. 2008; Posso & González 2008). It is herein reported for the first time from Alajuela, Heredia, and Limón provinces. As are other species of Potamobates , P. tridentatus is found on the riffle areas of lotic habitats along the Atlantic and Pacific slopes of Costa Rica, up to 700 m a.s.l.

Material examined. Alajuela— Tilarán, Rugama Stream, Cote Hydropower Project, 700 m a.s.l., 19.V.2008: 1 female ( MZUCR). San Carlos, Celeste River , N 10° 43.843, W -084° 53.270’, 106 m a.s.l., 23. IV. 2008, (B. Pacheco): 2 females ( MZUCR). Chachagua River , N 08° 45.551’, W -83° 30.575’, 31.I.2008, (B. Pacheco) : 2 males ( MZUCR). San Carlos, Crucitas, Relaves , N 10.86662°, W -084.34776°, 83 m a.s.l. , X.2008, (B. Pacheco): 1 female, 1 nymph (MZUCR). San Carlos, Crucitas, 50 m a.s.l., 25. IV.2008, (B. Pacheco): 3 males, 1 female (MZUCR). San Carlos, Crucitas, Mina Stream, N 10.86987, W -84.33404, 12.X.2008, (B. Pacheco): 2 females, 3 nymphs ( MZUCR). Guanacaste — Santa Cruz, Diriá National Park , Brasil Stream, X 239,390, Y 361,240, 160 m a.s.l. , 23.I.2000, (Y. Cárdenas): 1 female (InBio Cat. #57400). Santa Cecilia, Chon River , X 331,900, Y 379,800, V. 1990, 550 m a.s.l., (Parataxon. Course II): 1 female (InBio). Maritza Station, west side of Orosi Volcano , X 326,900, Y 373,000, 600 m a.s.l., VI.1991, (C. Chaves ) : 1 female (InBio). Maritza Station, west side of Orosi Volcano , 600 m a.s.l., X 326,900, Y 373,000, VI.1990, (C. Chaves) : 2 males (InBio). Los Mesones, Barra Honda National Park, A. C. Tempisque , X 239,200, Y 388,900, 100 m a.s.l. , I.1994, (M. Reyes): 1 male, 1 female (InBio Cat. #2562). Santa Cruz, Arado, Diriá River , 21. XI. 2008, (B. Pacheco): 2 females ( MZUCR). Heredia— Sarapiquí, La Tirimbina, Sarapiquí River , 27.I.2006: 1 female, 1 nymph ( MZUCR). Sarapiquí, La Tirimbina, Sarapiquí River under hanging bridge, 07.VII.2008, (B. Pacheco) : 1 male ( MZUCR). Sarapiquí, La Selva Biological Reserve , OET, SAT 95 , El Surá River , <50 m. a.s.l, 27.VIII.2005, (M. Losilla) : 1 male ( MZUCR). Limón— Amubri , X 385,500, Y 578,000 70 m a.s.l. , VI.1993, (G. Gallardo): 8 females (InBio Cat. #2250). Puntarenas— Grande de Térraba Watershed , Unión River , Diquís Hydropower Project, 14. III.2006 : 3 males, 1 female, 1 nymph ( MZUCR). Grande de Térraba Watershed, Volcán River, Diquís Hydropower Project , 13.II.2006 : 3 males, 1 female ( MZUCR). Golfito, La Gamba Stream, pond in tributary, 13.I.2010, (M. Springer ) : 1 female, 6 nymphs ( MZUCR). Grande de Térraba Watershed , Platanares River, Diquís Hydropower Project, 13.IX.2006: 1 male, 3 nymphs ( MZUCR). Grande de Térraba Watershed , Ceibo River , Diquís Hydropower Project, 27.II.2006 : 1 male ( MZUCR). Golfito, La Gamba, forest, 13.I.2010, (M. Springer ) : 1 male ( MZUCR). Golfito, La Cañaza, 14.I.2010, (M. Springer ) : 2 males, 1 female ( MZUCR). Piedras Blancas River , N 8° 47.168’, W -83° 14.106’, 02.II.2008, (B. Pacheco) : 2 males, 5 nymphs ( MZUCR). Golfito, 12.I.2010, (M. Springer ) : 3 males, 3 females ( MZUCR). Camaronal River , Diquís Hydropower Project, ICE, 02. IV.2008, 1 female ( MZUCR). Corcovado National Park, La Leona, Cerro Puma , X 267,700, Y 518,900, 300 m a.s.l. , 27.VI. 2003, (A. Azofeifa): 1 male (InBio Cat. #74494). La Fortuna, Nuevo River , X 290,700, Y 576,200, 100— 200 m a.s.l, 09.VI.2005 (J. Azofeifa): 2 males (InBio Cat. #83817). Quepos, Cañas River , 05.X.2008, (B. Pacheco): 1 female, 7 nymph ( MZUCR). Osa, Río Piro Reserve , Piro River , N 08° 24.117’, W -83° 20.353’, 32 m a.s.l. , V.2009, (B. Pacheco): 9 males, 5 females, 4 nymphs ( MZUCR). Osa, Río Piro Reserve , stream behind station, N 08° 24.178’, W -83° 20.170’, 27 m a.s.l. , V.2009, (B. Pacheco): 8 males, 4 females ( MZUCR). Osa, Corcovado National Park , N 08° 28.703, W -83° 35.447’, XI.2009, (B. Pacheco) : 1 female ( MZUCR). Banegas River , N 08° 41.455’, W -83° 32.211’, 31.I.2008, (B. Pacheco) : 13 males, 7 females, 15 nymphs ( MZUCR). San José —Pérez Zeledón, 0 9.III.2009, (J. Wright): 1 female ( MZUCR). Pérez Zeledón , N 09° 19.424’, W -83° 37.200, 629 m a.s.l., 23. III.2009, (J. Wright) : 3 males, 1 female (MZUCR).

Figures

FIGURE 11. Collecting records of Cylindrostethinae within the Costa Rican territory.