CHINSEGUT BUTTERFLY WALK: Bring binoculars and a butterfly guide and join guided walk looking for butterflies along the trails. 9 a.m., Chinsegut Nature Center at Florida Fish and Wildlife Conservation Commission, 23212 Lake Lindsay Road (CR 476), north of Brooksville. Space limited; RSVP (352) 754-6722. Free.
THE VAGINA MONOLOGUES: Starring Mackenzie Phillips, Gretchen Lee Krich and Joyce Lee. Eve Ensler's award-winning work. 7:30 p.m., Tampa Bay Performing Arts Center, 1010 N MacInnes Place, Tampa. $22.50-$39.50. 813 229-7827 or toll-free 1-800-955-1045; or www.tbpac.org
OIL CITY SYMPHONY: Off-Broadway musical by Martin Sherman (author of Bent), part of Florida Studio Theatre's Summerfest 2003 season. Preview performance, 8 p.m. 1241 N Palm Ave., Sarasota. $18. (941) 366-9000.
TO VIEWLAST COMIC STANDING: Finalists will live in the same house while they finish the competition. Hosted by Jay Mohr. 9 p.m., WFLA-Ch. 8.
FATHER KNOWS BEST: Mini-marathon, 8 p.m.-midnight, TV Land.
2003 NATIONAL AEROBICS CHAMPIONSHIPS: 10 p.m., ESPN2.