Mosquitoes were collected at Lignumvitae Key State Park in Monroe County, Florida, over a three-year period with the aid of carbon dioxide-baited light traps.  Ochlerotatus taeniorhynchus was the mosquito collected in the greatest numbers.  Deinocerites cancer, the crab hole mosquito, was the second most abundant.  Other mosquito species collected included: Aedes aegypti, Anopheles atropos, Anopheles crucians, Culex atratus, Culex bahamensis, Culex nigripalpus, Culex quinquefasciatus, Ochlerotatus atlanticus, Ochlerotatus condolescens, Ochlerotatus sollicitans, Ochlerotatus tortilis,    Ochlerotatus   triseriatus   and     Psorophora johnstonii. Nearly 4 times as many mosquitoes were collected in 2003 than in 2002 and again nearly twice as many were collected in 2004 than 2003.  This significant increase in collections in the year 2003 and 2004 is attributed to mass migrations from the Florida Everglades in addition to favorable breeding conditions on the island. Collections peak in the month of September, which corresponds to the peak of the hurricane season, autumnal high tides, and significant rains of the rainy season.