Two genera are found in Florida, Melitoma and Ptilothrix.
Second segment of labial palpus shorter, 0.5-0.8 times as long as first, and usually shorter (0.3-0.6 times) than eye; proboscis in repose reaching at most front coxae…Ptilothrix
County Records: Alachua, Escambia, Hardee, Leon, Madison, Marion, Orange.
Locations: Winter Park, Zolfo Springs
Dates: May 6-Oct. 6; May: 1, June: 1, July: 3, Aug: 1, Sept.:1, Oct: 1
Plants: Ipomoea microdactyla
Notes: nesting in clay soils in Winter Park, oligolectic on Ipomoea species; Michener reports that most species of this genus nest in aggregations of hard clay banks
County Records: Alachua, Escambia, Gadsden, Leon
Dates: June 21-Aug. 23; July: 3, Aug: 4
Plants: Oligolege primarily on Hibiscus
Notes: ground-nesting species