Proteides mercurius mercurius (Fabricius, 1787);   Mercurial Skipper,   Comments: continental, S Texas to Argentina, SE Arizona as rare stray.

last instar, length 35 mm COSTA RICA: Alajuela Prov.: Area de Conservacion Guanacaste, Sector Rincon Rain Forest, Finca Aurita, 460m, collected on 03-IV-2007 as penultimate instar, photographed on 13-IV-2007 foodplant Machaerium seemannii voucher code 07-SRNP-40796, image code 07-SRNP-40796-DHJ422211.jpg image from http://janzen.sas.upenn.edu/