genualis (Loew), 1866: 128 (Ceratopogon; male). Type locality: Cuba. HT F (MCZC). Distr.:USA (Louisiana to Florida), Bahamas, Mexico (Yucatán, Chiapas) to Colombia, Galápagos Islands, Cayman Islands, Cuba to Argentina (Entre Ríos: Salto Grande, Puerto Luis, 31°23'36.01", 57°59'41.09"W. Buenos Aires: Ensenada, Reserva Natural Integral Punta Lara, marginal forest, 34º47'21.2''S, 57º59'56.8''W); São Tomé. Refs.: Spinelli & Marino, 1998: 39.
propinqua (Williston), 1896: 279 (Ceratopogon). Type locality: St. Vincent. HT M (BMNH). raleighi Macfie, 1938: 160. Type locality: Trinidad and Tobago, St. Augustine. LT M (BMNH).
Diagnosis. Only species of the genualis group with antennal ratio 1.15; third palpal segment slender; mandible unarmed; parameres distinctive separated in form of broad oval plates, usually narrowly joined mesad, each one bearing a very slender, almost straight, spine like process.