South Texas Satyr

Hermeuptychia hermybius · Order: Lepidoptera · Family: Nymphalidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
South Texas Satyr
Photo: John Rosford, CC BY

The South Texas Satyr has forewings about 16 mm long. It lives in the lower Rio Grande Valley of Texas and nearby Mexican states such as Tamaulipas and San Luis Potosí. Its caterpillars feed on the grass Panicum maximus.

Source: Wikipedia

Size

Forewing length is roughly 16 mm.

Source: Wikipedia

What it eats

Larvae eat the grass species Panicum maximus.

Source: Wikipedia

Where it comes from

Recorded from the lower Rio Grande Valley in Texas, extending along the Rio Grande to the Gulf coast. Also found in neighboring Mexican states of Tamaulipas and San Luis Potosí.

Source: Wikipedia

Where it is found in the US

Recorded in 1 of 51 states and DC. Most records: Texas.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Months it is reported in the US

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Source: GBIF

More photos

South Texas Satyr photo 2
Photo: John Rosford, CC BY
South Texas Satyr photo 3
Photo: Dennis Vollmar, CC BY
South Texas Satyr photo 4
Photo: John Rosford, CC BY
South Texas Satyr photo 5
Photo: Juan Chavez, CC BY

Same family (Nymphalidae)

MonarchMonarchDanaus plexippusRed AdmiralRed AdmiralVanessa atalantaPainted LadyPainted LadyVanessa carduiGulf FritillaryGulf FritillaryDione vanillaeSpeckled WoodSpeckled WoodPararge aegeriaEuropean Peacock ButterflyEuropean Peacock ButterflyAglais io

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Hermeuptychia_hermybius

Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia

Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.