Mournful Duskywing (Erynnis tristis)

Compare to Funereal Duskywing

(note that it lacks pale patch at end of cell unlike funereal duskywing)

Solar Drive, Mission, Hidalgo Co., TX
September 12, 2004 ( G Quintanilla)

Solar Drive, Mission, Hidalgo Co, Tx
April 28, 2007 (G Quintanilla)

(submarginal white patches on HW below is diagnostic)

Hidalgo Co., TX
October 19, 2002 (D Hanson)