Zebra Heliconian (Heliconius charithonius)

2004 was a good year for the Zebra, 
here's a map of that year's county records:

Aransas (not shown), Bandera, Bastrop, Bell, Bexar, Brazos, 
Brewster, Burnet, Calhoun, Cameron, Comal, Coryell,
Culberson, Dallas, Dewitt, Fort Bend, Frio, Galveston, 
Goliad, Gonzales, Guadalupe, Harris, Hays, Hidalgo, 
Kleberg, Matagorda, Medina, Real, Starr, Tarrant, 
Travis, Uvalde, Val Verde, Victoria, Williamson

35 Counties! (and counting...)

(Data primarily from TX-Butterfly Listserv)

(Map drawn from http://monarch.tamu.edu/~maps2/diy_map.htm)

Photos

Historical (pre 2004) County Records as Posted on USGS

30 Counties

map is hyper linked to USGS website for this species