Southern yellow bat
species of mammal
The southern yellow bat (Lasiurus ega) is a species of vesper bat that belongs to suborder microchiroptera (microbat) in the family Vespertilionidae. It is native to South, North and Central America, from the Rio Grande Valley of Texas in the United States to Argentina.
Description
The southern yellow bat is a small bat covered with yellow fur as its name indicates. Generally, females are larger than males. Forearm length of female averages 4% (1.83 mm) greater than that of males.
Ecology
Range and habitat
Southern yellow bats occur in the southwestern United States to northern Argentina and Uruguay, with the most austral record being Buenos Aires province, Argentina, at 40° S. They reside in wooded area such as forest, foliage, and palms. They occasionally occupy other sites that resemble large dead leaves, such as dried corn stalks and thatched roofing This species roosts in trees and vegetation. In Texas, their preferred roosting sites are the frond "skirts" of both wild and ornamental palm trees, such as Sabal mexicana and Washingtonia robusta. These are collections of dead fronds against the trunk and provide a favored dark habitat for the bats. Palms are also home to insects, which the bats eat.
This brief starts where responsible research should: with the source description of “Southern yellow bat” as species of mammal. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the science & nature register because the source frames it as species of mammal. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Aug 19, 2026. The linked authority identifier is Q305707. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Southern yellow bat” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.