The water striders (Hemiptera: Heteroptera: Gerridae) of Costa Rica: new species, checklist, and new records Author Pacheco-Chaves, Bernald Author Cordeiro, Isabelle Da Rocha Silva Author Moreira, Felipe Ferraz Figueiredo Author Springer, Monika text Zootaxa 2018 2018-09-06 4471 3 493 522 journal article 29467 10.11646/zootaxa.4471.3.4 3da0d889-944e-465a-8a94-c6fde5cda633 1175-5326 1439932 C83B3937-4CFA-4B2D-972C-C95DE896D85C Halobates sobrinus White, 1883 ( Fig. 13 ) Halobates sobrinus is an Eastern Pacific species, being more common along the American coast from the equator northward to the Gulf of California ( Ikawa et al. 2012 ). No specimens were collected during the current study, which focused on freshwater or estuarine habitats, although we examined material from the northern Pacific Coast of Costa Rica . The collections occurred in a beach and in the nearby Coco’s Island , about 500 km offshore. These represent the first records from the provinces of Guanacaste and Puntarenas . Material examined . Guanacaste — Potrero Grande , ACG, (1. San José ), EAP , 19.X.2005 , ( B. Gray & R. Chaves ): 16 males , 21 females , 1 nymph ( MZUCR ) . Puntarenas — Puntarenas , Coco ´s Island : 2 males , 1 female ( MZUCR ) .