Gnamptogenys triangularis (Mayr, 1887)

Gnamptogenys triangularis is a relatively large, black ant with more reddish legs that is characterized by deep longitudinal grooves and ridges that the run the lengths of the head, mesosoma and gaster. Little is known about the ecology of the ant, other than that it is believed to be a millipede specialist and is associated with humid forests and arboreal foraging (Costello et al., 2003; Deyrup et al., 2000; Lattke et al., 2004; Longino, 2012). Gnamptogenys triangularis is native to the Neotropics, where it ranges from Costa Rica to Argentina (Lattke et al., 2007), and is introduced in Florida (Deyrup, 2003; Deyrup et al., 2000; Deyrup et al., 1989), Alabama (MacGown & Forster, 2005), and Mississippi (MacGown, 2012). The earliest known specimens from Florida (first reported as G. aculeaticoxae (Santschi)) date to 1985, and it is so rare there that it is believed to have negligible effects on the native fauna (Deyrup et al., 2000).