Natural and Cultural History of the

Lower Rio Grande Valley of Texas

Return to Texas Entomology - Compiled by Mike Quinn


The Lower Rio Grande Valley (LRGV) of Texas





RGV Butterflies

Rio Grande Valley Butterfly Trail 

An approximately equal number of butterflies have been recorded in this tiny region 
as has been recorded in all of eastern North America COMBINED!

Only three states (including Texas) have recorded more butterflies than the RGV

Aerial Photograph of Southern Hidalgo County
where most new U.S. records are recorded

Map of the Rio Grande Valley

For more information on the butterflies of this region, 
see the NABA-South Texas website.

RGV Beetles

Similarly, the LRGV probably has the greatest concentration of “special” beetle species per unit area for anywhere in Texas.

Beetles of the Lower Rio Grande Valley

RGV Odonates

Odonata (Dragonflies and Damselflies) of the LRGV 

RGV Natural History

The Lower Rio Grande Valley Biological Profile 

Biology of the Rio Grande Border Region: A Bibliography 

RGV Cultural History

The South Texas Border, 1900-1920 Photographs from the Robert Runyon Collection (Library of Congress)

Rio Grande Valley -  Handbook of Texas Online

La Sal del Rey -  Handbook of Texas Online

Historical RGV Maps

Cartography of the Lower Rio Grande

Border Fence News

Land in Peril...Border Wall Threatens Private Property and Wildlife Habitat

Border Barricade Threatens Wildlife Corridor and 100 Million Dollar Investment

Valley Newline - Walling Up the Rio Grande - May 20, 2007

Valley Newline - Realities of the Borderland - May 27, 2007

02 Mar 2008 © Mike Quinn / / Texas Entomology