Tawny Pennant Brachymesia
herbida
Update May 29, 2011: added female showing the distinctly different wing pattern; at the bottom:
From Falcon State Park, Starr county on Nov 02, 2007:
From Estero Llano Grande Wetlands, Hidalgo County, Texas on April 09, 2006:
From Dade County, Florida in May, 2006:
Update May 29, 2011: This female from Falcon Dam State Park, Starr county, Texas in October 2007 is from just the right angle to demonstrate the different wing pattern found in females: a small solid tawny patch at the base of the hindwing (and a minute one on the forewing) plus a dusky tip to each wing and little or no smoky tawnyness in the central part of each wing:
