Guérin-Méneville 1857 : 413 Kirkaldy 1902 : 280 Torre-Bueno 1926 : 119 Torre-Bueno 1926 : 124 Hungerford & Evans 1934 : 101 Drake & Lauck 1959 : 50 Nieser 1970 : 143 Froeschner 1981 : 39 Moreira et al. 2009 : 72 Heckman 2011 : 261 The genus Hydrometra Latreille in Ecuador with description of a new species (Hemiptera: Heteroptera: Gerromorpha: Hydrometridae) Cianferoni, Fabio Buzzetti, Filippo Maria Zootaxa 2012 3274 55 62 6MJR8 Guerin-Meneville, 1857 Guerin-Meneville 1857 [151,698,727,753] Insecta Hydrometridae Hydrometra Animalia Hemiptera 1 56 Arthropoda species caraiba     Hydrometra caraiba  Guérin-Méneville 1857: 413.  Hydrometra agenor  Kirkaldy 1902: 280.  Hydrometra championiana  Torre-Bueno 1926: 119.  H. agenor:  Torre-Bueno 1926: 124.    H. agenor:  Hungerford & Evans 1934: 101.  H. caraiba:  Drake & Lauck 1959: 50.    H. caraiba:  Nieser 1970: 143.    H. caraiba:  Froeschner 1981: 39.    H. caraiba:  Moreira et al.2009: 72.    H. caraiba:  Heckman 2011: 261.   Material examined. ECUADOR: Esmeraldas, Montalvo, La Mayronga, 95 m, 0°53’27,2”N 79°13’2,5”W, 14- 17.XI.2004, F.M. Buzzetti & G. Carotti legit, 1 3 macropterous, FMB.  Notes. Kirkaldy (1902)described  H. agenorfrom Guayaquil, but Drake & Lauck (1959)synonymized it with  H. caraiba. Widespread from the Caribbean to South America.