Brachymetra albinervus (Amyot & Serville, 1843)

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 : 497

Brachymetra albinervus (Amyot & Serville, 1843)

( Fig. 10 )

Previously recorded from Guatemala southward to Paraguay, including some of the Windward Islands of the Caribbean ( Cordeiro 2017). However, there are several gaps throughout the distribution of this species, and it is herein recorded for the first time from Costa Rica. In the country, B. albinervus is found in lotic habitats in backwater areas. It is distributed on both the Atlantic and Pacific slopes, up to 1,200 meters above sea level (m a.s.l.).

Material examined. Alajuela —Cote Hydropower Project, Rugama Stream, 600 m a.s.l., 29.V.2008, (M. Springer): 2 males, 3 females, 1 nymph ( MZUCR) . San Carlos, Crucitas, X 501,010, Y 316,238, 92 m a.s.l., 03.XI.2008, (B. Pacheco): 3 males, 8 females, 3 nymphs (MZUCR). San Carlos, Crucitas, 50 m a.s.l., 25. IV.2008, (B. Pacheco): 1 male, 2 nymphs (MZUCR). San Carlos, Crucitas, Relaves, N 10.86662°, W -84.34776°, 83 m a.s.l., X.2008, (B. Pacheco): 1 male, 2 females, 3 nymphs (MZUCR). San Carlos, Crucitas, Cerro Botija “Pits”, X 501,033, Y 316,236, 121 m a.s.l., X.2009, (B. Pacheco): 3 males, 2 females (MZUCR). San Ramón, Chachagua, 29.III.2008, (B. Pacheco): 3 males, 2 females, 1 nymph (MZUCR). Cebadilla, 500 m a.s.l., 06.XII.1998, (L. Fernández): 1 male (MZUCR). San Carlos, Crucitas, Mina Stream, N 10.86987, W -84.33404, 12.XII.2008, (B. Pacheco): 1 male (MZUCR). Guanacaste —Cuajiniquil, Guanacaste National Park, Murciélago Station, 8 km SW from Cuajiniquil, 100 m a.s.l., X 320,300 Y 347,200, I.1994, (F. A. Quesada): 1 male (InBio) ; Santa Cruz, Arado, Diriá river , 21.I.2008, (B. Pacheco): 1 female ( MZUCR) . Heredia —Braulio Carrillo National Park, El Ceibo Station , X 527,700, Y 256,500, 400– 600 m a.s.l, IX.1989, (R. Aguilar & M. Zumbado): 1 female (InBio). Braulio Carrillo National Park, El Ceibo Station , X 527,700, Y 256,500, 400 – 600 m a.s.l., II.1990, (C. Chaves & R. Aguilar): 1 male (InBio); Sarapiquí, La Tirimbina, Stream in Ceiba Trail , 07.VII.2008, (B. Pacheco): 1 male, 4 females (MZUCR). Sarapiquí, Guayacán Reserve, N 10° 03.316’, W -84° 33.088’, 27. IV.2009, (B. Pacheco): 1 male, 4 females (MZUCR). Limón — Talamanca, Puerto Viejo, N 09° 38.234’, W -82° 42.494’, 10 m a.s.l., 19.II.2009, (B. Pacheco): 1 female, 1 nymph ( MZUCR) . Talamanca, San Rafael, Site 11, Tigre Stream Tributary, N 09° 33’ 40.94’’, W -82° 40’ 15.68’’, 10.X.2005, (P. Gutiérrez): 1 female, 1 nymph ( MZUCR). Puntarenas— San Vito, OTS, Las Cruces Station , Java River, 24.I.2010, (M. Springer): 2 females ( MZUCR) . San Vito, OTS, Las Cruces Station , Water Trail, Stream, 22.I.2010, (M. Springer): 3 females ( MZUCR) . San Vito, X 634,383, Y 114,642, 680 m a.s.l., (B. Pacheco): 2 males, 5 females, 3 nymphs (MZUCR). Golfito, La Gamba downstream, tributary-well, 13.I.2010, (M. Springer): 1 female (MZUCR). Esparza, Jabonal, Barranquilla Stream, 14.VIII.2008, (B. Pacheco): 1 male ( MZUCR). Osa, stream behind Piro River Station , N 08° 24.178’, W -83° 20.170’, 27 m a.s.l, V.2009, (B. Pacheco): 10 males, 6 females, 1 nymph (MZUCR). Puntarenas, Chacarita River , N 08° 46.952’, W - 83° 16.288’, (B. Pacheco): 1 female ( MZUCR) . Quepos, Parrita, N 09° 38.980’, W -84° 15.986’, 199 m a.s.l., 14.V.2009, (B. Pacheco): 1 female (MZUCR). Cóbano, Montezuma, Waterfall, 0 m a.s.l., IV.1995, (C. Nolthing): 1 female ( MZUCR). Osa, Piro River , N 08° 24.117’, W -83° 20.353’, 32 m a.s.l., (B. Pacheco): 2 males (MZUCR). Golfito, La Gamba Stream, 2 km up stream Barrio Ureña, 20 m a.s.l, I.1999, (UCR Field Course): 1 male (MZUCR). San José — Acosta, Palmichal, Tabarcia River , N 0 9.8333333, W -84.2, 1200 m a.s.l, (B. Pacheco): 1 female ( MZUCR) .

Figures

FIGURE 10. Collecting records of Charmatometrinae and Rhagadotarsinae within the Costa Rican territory.