Asclepias
Guides
Euchaetes antica
Euchaetes antica is a small moth in the family Erebidae, described by Francis Walker in 1856. It is distributed across the southwestern United States and Central America, ranging from Arizona and New Mexico south through Mexico to Nicaragua, Honduras, and Guatemala. The species exhibits sexual dimorphism in forewing length, with males measuring 13–15 mm and females 16–20 mm. Larvae feed specifically on Asclepias subverticillata, a milkweed species.
Polistes dominula
European Paper Wasp
Polistes dominula is a highly successful invasive social wasp native to Eurasia that has established populations across North America, South America, New Zealand, South Africa, and other regions. First detected in North America near Boston in 1978, it has become one of the most abundant wasps on the continent. The species builds small, exposed paper nests in protected locations and preys primarily on live insects, particularly caterpillars. Unlike yellowjackets, it does not scavenge for meat or sugar. Its rapid spread has been attributed to ecological flexibility, superior competitive ability, and tolerance of human-altered environments.
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basalis
western milkweed longhorn beetle
Tetraopes basalis is a longhorn beetle in the family Cerambycidae, commonly known as the western milkweed longhorn beetle. It was described by John Lawrence LeConte in 1852 and occurs in the United States. The species is closely associated with milkweed plants (Asclepias), on which adults feed and larvae develop. Adults are most active from April to August.
Tetraopes discoideus
Tetraopes discoideus is a small milkweed longhorn beetle in the family Cerambycidae, described by John Lawrence LeConte in 1847. Adults measure 7–9 mm in length, making this species notably smaller than congeners. The species is associated with milkweed plants (Asclepias spp.) throughout its range in the southwestern United States and Mexico. Adults have been observed resting, feeding, and mating on milkweed stems and flowers. Larvae develop by feeding on milkweed roots, either tunneling directly into large taproots or living in surrounding soil when roots are small.
Tetraopes texanus
Texas Milkweed Beetle
Tetraopes texanus is a longhorn beetle (Cerambycidae) endemic to North American grasslands, described by George Henry Horn in 1878. The species exhibits a disjunct distribution with two primary population clusters: one in Texas and Oklahoma, and another in the Black Belt Prairie of Mississippi and Alabama. Genetic studies indicate these populations diverged in the mid-Pleistocene and remain incompletely isolated. The species is a milkweed specialist, utilizing Asclepias species as host plants throughout its life cycle. Listed as Near Threatened by IUCN due to habitat loss, limited range, and increasing genetic isolation among fragmented populations.