| Psephenus texanus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Family: | Psephenidae |
| Genus: | Psephenus |
| Species: | P. texanus |
| Binomial name | |
| Psephenus texanus Brown & Arrington, 1967 | |
Psephenus texanus, the Texas water penny, is a species of water penny beetle in the family Psephenidae. It is found in Texas and northeastern Mexico. [1] [2] [3]
Water-penny beetles are a family of 272 species of aquatic beetles found on all continents except Antarctica, in both tropical and temperate areas. The young, which live in water, resemble tiny pennies. The larvae feed – usually nocturnally – on algae on rock surfaces. The presence of water-penny larvae in a stream can be used as a test for the quality of the water, as they are pollution-sensitive. They cannot live in habitats where rocks acquire a thick layer of algae, fungi, or inorganic sediment. Therefore, their presence along with other diverse phyla signifies good-quality water. They are around 6 to 10 millimeters in length.
The Coffin Cave mold beetle, also known as the Inner Space Caverns mold beetle, is a small insect that is only found in caves. They are very small at 2.60–2.88 mm (0.102–0.113 in) and lack any form of eyes. They are found exclusively in caves in a single county in Texas, Williamson County. The United States Fish and Wildlife Service considers the Coffin Cave mold beetle to be an endangered species. Threats facing this species include urbanization.
Dyspanopeus texanus is a species of crab known as the Texas mud crab.
Harley Procter Brown Jr. was an American biologist and an expert in certain types of aquatic beetles. He described over forty new species in his career.
Psephenus falli is a species of water penny beetle in the family Psephenidae. It is found on the west coast of North America.
Psephenus is a genus of water penny beetles in the family Psephenidae. There are about 13 described species in Psephenus.
Psephenus herricki is a species of water penny beetle in the family Psephenidae. It is found in eastern North America.
Phidippus texanus is a species of jumping spider in the family Salticidae. It is found in the United States and Mexico.
Rhetenor texanus is a species of jumping spider. It has been found in Texas and Veracruz, Mexico.
Megachoriolaus texanus is a species of flower longhorn in the beetle family Cerambycidae. It is found in North America.
Hapalips texanus is a species of pleasing fungus beetle in the family Erotylidae. It is found in North America. They are elongate and have a shining upper surface.
Trichiotinus texanus, the Texas flower scarab, is a species of scarab beetle in the family Scarabaeidae.
Opilioacarus texanus is a species of mite in the family Opilioacaridae.
Rhyopsocus texanus is a species of bird nest barklouse in the family Psoquillidae. It is found in Central America and North America.
Distremocephalus texanus, the little Texas glowworm, is a species of glowworm beetle in the family Phengodidae. It is found in Central America and North America.
Pogonus texanus is a species of ground beetle in the family Carabidae. It is found in North America.
Photinus texanus is a species of firefly in the beetle family Lampyridae. It is found in North America.
Pachybrachis texanus is a species of case-bearing leaf beetle in the family Chrysomelidae. It is found in Central America and North America.
Xysticus texanus is a species of crab spider in the family Thomisidae. It is found in the United States and Mexico.
Rhyssomatus texanus is a species of true weevil in the beetle family Curculionidae. It is found in North America.
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