DYTISCINAE, Leach, 1815

Peck, Stewart B., Thomas, Michael C. & Robert H. Turnbow, Jr., 2014, The diversity and distributions of the beetles (Insecta: Coleoptera) of the Guadeloupe Archipelago (Grande-Terre, Basse-Terre, La Désirade, Marie-Galante, Les Saintes, and Petite-Terre), Lesser Antilles, Insecta Mundi 2014 (352), pp. 1-156 : 20-21

SUBFAMILY DYTISCINAE

TRIBE HYDATICINI

[ Hydaticus (Hydaticus) cinctipennis Aubé 1838: 191 ; Sharp 1882: 651; Fleutiaux and Sallé 1890: 372; Roughly and Pengelly 1981: 269; Nilsson 2001: 107. Distribution. Not Guadeloupe, a likely label error or misidentification. USA (NY and TN-FL-MS).]

[ Hydaticus modestus Sharp 1882: 650 ; Blackwelder 1944-1957: 372,not Guadeloupe, misidentification].

Hydaticus (Guinotites) rimosus Aubé 1838: 182 ; Fleutiaux and Sallé 1890: 372; Blackwelder 1944-1957: 79; Roughly and Pengelly 1981: 274; Nilsson 2001: 105; Turnbow and Thomas 2008: 35; Perez- Gelabert 2008: 77. Distribution. Bahamas, Barbados (not determined to species, Bass 2003: 279), Cuba, Guadeloupe, Hispaniola. Mexico to Nicaragua; widespread Antilles and Latin America .

TRIBE ACILIINI

Thermonectus basillaris (Harris) 1829: 1 ( Dytiscus ); Fleutiaux and Sallé 1890: 372 ( Thermonectes ); Blackwelder 1944-1957: 79; Ramos 1946: 32; Wolcott 1950: 233 ; Spangler 1981: 154; Larson et al. 2000: 826; Nilsson 2001: 85; Bass 2003: 279, 2004: 28, 2006a: 13, 2006b: 33; Ivie et al. 2008b: 239; Turnbow and Thomas 2008: 3; Alarie et al. 2009: 7. = Acilius incisus Aubé 1838: 147 of Guadeloupe, of St. Barthélemy. Distribution. Antigua, Cuba, Bahamas, Barbados, Guadeloupe, Grenada, Hispaniola, Jamaica, Mona, Montserrat, Nevis, Puerto Rico. Canada (southern Ontario), USA (eastern), Mexico to Brazil; widespread New World.

Thermonectus circumscriptus (Latreille) 1809: 223 ( Dytiscus ); Fleutiaux and Sallé 1890: 372 ( Thermonectes ); Blackwelder 1944-1957: 79; Wolcott 1950: 233 ; Miskimen and Bond 1970: 80; Spangler 1981: 154; Nilsson 2001: 85; Turnbow and Thomas 2008: 37; Perez-Gelabert 2008: 78; Alarie et al. 2009: 8. = Hydaticus insularis Laporte 1835: 91 of Guadeloupe. Distribution. Antigua, Bahamas, Cuba, Guadeloupe, Hispaniola, Jamaica, Mona, Puerto Rico, St. Croix, St. Thomas. Mexico to Brazil and Argentina; widespread Antilles and Latin America .

Thermonectus margineguttatus (Aubé) 1838: 149 ( Acilius ); Fleutiaux and Sallé 1890: 373 ( Thermonectes ); Blackwelder 1944-1957: 80; Spangler 1981: 154; Tremouilles 1989: 105; Nilsson 2001: 85; Turnbow and Thomas 2008: 37; Alarie et al. 2009: 11. Distribution. Antigua, Bahamas, Cuba, Guadeloupe, Hispaniola, Puerto Rico. Mexico to Brazil and Argentina; widespread Antilles and Latin America .

TRIBE ERETINI

Eretes sticticus (L.) 1767: 666; Fleutiaux and Sallé 1890: 373; Bennett and Alam 1985; 20; Tucker 1952: 340; Miskimen and Bond 1970: 79; Nilsson 2001: 99, supposedly limited to Old World, but in error; Miller 2002: 264; Bass 2006b: 33; Turnbow and Thomas 2008: 35. = Eretes occidentalis Erichson 1847: 73 ; Larson et al. 2000: 829; Nilsson 2001: 99; Valentine and Ivie 2005: 275. Distribution. Bahamas, Barbados, Guadeloupe, Guana, Puerto Rico, St. Barthélemy, St. Croix, St. John, St. Kitts; one of two New World species in the genus, widespread from southern USA south to Peru, including West Indies and Galapagos Islands; widespread New World; also Middle East and throughout Africa. Notes. An inhabitant of temporary pools in dry regions; colonizing temporary water bodies; often attracted to lights; larval stages completed in 9-10 days. Eretes explicitus Miller 2002: 265 of SE USA and FL might extend to the Antilles.

TRIBE CYBISTRINI

Megadytes (Bifurcitus) giganteus (Laporte) 1835: 99 ( Dytiscus ); Blackwelder 1944-1957: 80; Miskimen and Bond 1970: 80; Bennett and Alam 1985 20; Nilsson 2001: 94; Bass 2003: 279; Ivie et al. 2008b: 239; Turnbow and Thomas 2008: 36; Perez-Gelabert 2008: 77. = Cybister lherminieri Laporte 1835: 99 of Guadeloupe; Fleutiaux and Sallé 1890: 374 ( Megadytes ). = Megadytes laevigatus Olivier 1795: 14 , Fleutiaux and Sallé 1890: 373 of Guadeloupe. = Megadytes fraterna Sharp 1882: 99 , Blackwelder 1944-1957: 80 of Antigua, of Guadeloupe; Miskimen and Bond 1970: 80 of St. Croix; Turnbow and Thomas 2008: 36 of Bahamas; Perez-Gelabert 2008: 77 of Hispaniola. Distribution. Antigua, Bahamas, Barbados, Cuba, Guadeloupe, Hispaniola, Montserrat, Puerto Rico, St. Croix. Mexico to Argentina; widespread Antilles and Latin America . Notes. The larvae are predaceous on tadpoles of the introduced giant toad Rhinella marina (Linnaeus) , formerly known as Bufo marinus Linnaeus. This beetle is apparently a serious limiting factor to population build-up of this agriculturally beneficial but otherwise environmentally undesirable amphibian which has been introduced to islands throughout the Caribbean for the control of sugarcane pests.