Platygerris asymmetricus Hungerford, 1932

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 : 498

Platygerris asymmetricus Hungerford, 1932

( Fig. 11 )

This species is known only from Costa Rica, with previous records from Alajuela and San José provinces, and the Virilla River ( Hungerford 1932, 1939; Matsuda 1961b). It is herein reported for the first time from Cartago, Guanacaste, Heredia, Limón, and Puntarenas provinces. Platygerris asymmetricus is usually found on the riffles of lotic habitats, but has also been collected on slow flowing areas. It occurs on both the Atlantic and Pacific slopes, up to 2,406 m a.s.l.

Material examined. Alajuela — San Ramón, Chachagua , N 10° 24’ 29.1’’, W -84° 34’ 13.0’’, 136 m a.s.l., 30.VIII.2008, (B. Pacheco): 2 males, 3 females ( MZUCR) . San Ramón, Chachagua River , 28.X.2008, (F. Villalobos): 1 female ( MZUCR) . San Ramón, Chachagua River , 29. III.2008, (B. Pacheco): 1 female ( MZUCR) . Grecia, Toro Hydropower Project, Toro River , VIII.2002, (B. Pacheco): 1 male ( MZUCR) . Grecia, Cuarto River , N 10° 31’ 24.6’’, W -084° 10’ 17.3’’, 83 m a.s.l., (B. Pacheco): 2 males ( MZUCR) . San Ramón, Peñas Blancas River , 19. III.2008, (B. Pacheco): 2 males, 6 females, 8 nymphs ( MZUCR) . Toro River , VIII. 2002, (B. Pacheco): 5 males ( MZUCR) . Celeste River, San Carlos, Long. 8453,27, Lat. 1043,843, 23. IV. 2008, (B. Pacheco): 2 males, 6 females, 8 nymphs ( MZUCR). Cartago —Turrialba, Grano de Oro, Chirripó, X 200,250, Y 595,900, 1120 m a.s.l. , VII.1993, (P. Campos): 1 female (InBio Cat. # 2253). Heredia — Sarapiquí, La Tirimbina, below hanging bridge, Sarapiquí River , 07.VII.2008, (B. Pacheco): 3 males, 2 females, 6 nymphs ( MZUCR) . Guanacaste — Miravalles Volcano , Cabro Muco Station, X 299,769, Y 411,243, 1100m a.s.l. , 20. III.2003, (J. Azofeifa, B. Hernández & J.D.Gutiérrez): 3 females (InBio Cat. #73631); Miravalles Volcano, Cabro Muco Station , X 299,769, Y 411,243, 1100 m a.s.l. , 23.IX.2003, (J. Azofeifa): 2 females (InBio Cat. #75475); Nicoya, Santa Cruz, Arado, Diriá River , 21.I.2008 (B. Pacheco): 1 male, 2 females, 7 nymphs ( MZUCR) . Abangares River , X 424,673, Y 246,748, 15. III.2009, (D. Vásquez & B. Pacheco): 1 female ( MZUCR). Limón — La Amistad International Park, Circular trail, X 340,258, Y 577,465, 2406 m a.s.l. , 25. III.2003, (R. Delgado): 1 male (InBio Cat. #73661). Estrella River , N 09° 42’ 48.8’’, W -082° 57’52.9’’, 20 m a.s.l. , 10.X.2009 (B. Pacheco): 7 males, 3 females (MZUCR). Estrella River , 17.V.2009 (B. Pacheco): 1 female ( MZUCR) . Talamanca, ANAI Project, Rancho Grande River , (J. Barquero & M. Bent): 1 female ( MZUCR). Puntarenas —A. C . La Amistad. Vellavista River Side, X326,500, Y 591,700, 1900 m a.s.l., VIII.1997, (J. F. Quesada): 1 male, 2 females (InBio Cat. #47923) . Monteverde Biological Reserve Station, Leonel Hernández Station , X 249,750, Y 450,075, 1600 m a.s.l., VI.1991, (E. Bello): 1 male (InBio) . Térraba River Watershed, Diquís Hydropower Project, Pejibaye River , 09.XII.2005: 5 males, 1 female ( MZUCR) . Osa, Limón Farm, Esquinas River , 26.II.2008, (InBio): 7 males, 5 females, 3 nymphs ( MZUCR) . Osa, Limón Farm, Esquinas River , 26.XII.2008, (InBio): 5 males, 7 females, 3 nymphs (InBio) . Térraba River Watershed, Diquís Hydropower Project-ICE, Pacuar River , 23.VIII.2006: 1 male, 10 nymphs ( MZUCR) . Térraba River Watershed, Pacuar , Costa Rica abajo, 14.IV.2000: 1 male, 15 females, 5 nymphs ( MZUCR) . Térraba River Watershed, Diquís Hydropower Project-ICE, Unión River , 14. III.2006: 1 male ( MZUCR) . Térraba River Watershed, Diquís Hydropower Project, Peje River , 27.IX.2006: 1 male, 2 nymphs ( MZUCR) . Térraba River Watershed, Diquís Hydropower Project, Pejiballe River , 09.XII.2005: 5 males, 1 female ( MZUCR) . Quepos, Parrita , Pirrís River, N 08° 38. 980, W -084° 15.986, 199 m a.s.l., 14.V.2009, (B. Pacheco): 3 males, 1 female, 2 nymphs ( MZUCR) . San José — Pérez Zeledón , N 09° 19.592, W -083° 37.200, 629 m a.s.l., (J. Wright): 1 male ( MZUCR) .

Figures

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