There are over 300 species of butterflies that have been recorded in the Lower Rio Grande Valley (LRGV) of South Texas. Over one half of these species are LRGV specialties that do not normally occur elsewhere in the United States. Over 90 of these specialties are unique and not found north of this region.
Total: 163 Specialty Butterflies
Unique specialties are in boldface.
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English names follow:
Cassie et al. NABA Checklist and English Names of North American Butterflies. Second Edition. 2001
Opler, Paul A., Harry Pavulaan, Ray E. Stanford, Michael Pogue, coordinators. 2006. Butterflies and Moths
of North America. Bozeman, MT: Mountain Prairie Information Node. http://www.butterfliesandmoths.org/
Wauer, Roland H. 2004. Butterflies of the Lower Rio Grande Valley. Johnson Books, Boulder. 331 pp.
