Cactus
Guides
Cacama
Cactus Dodger Cicadas
Cacama is a genus of cicadas in the family Cicadidae, commonly known as "cactus dodger cicadas." The genus contains at least 12 recognized species distributed across western North America, from the southern Great Plains to California. These cicadas are notable for their association with cacti, particularly Opuntia and Cylindropuntia species, and their ability to navigate among spiny hosts without injury. The type species, Cacama valvata, has been studied for its thermal physiology and distinctive mating behaviors.
Gerstaeckeria
Cactus Weevils
Gerstaeckeria is a genus of weevils in the family Curculionidae, commonly known as cactus weevils. The genus contains more than 40 described species. Members of this genus are associated with Opuntia cacti as hosts. The genus was established by Champion in 1905.
Moneilema
cactus longhorn beetles, cactus beetles
Moneilema is a genus of large, flightless, black longhorn beetles endemic to North American deserts. The genus contains twenty species distributed across the western United States and northern Mexico. Adults and larvae are exclusively associated with cacti in the subfamily Opuntioideae, including prickly pears (Opuntia) and chollas (Cylindropuntia). The beetles are notable for their remarkable mimicry of darkling beetles in the genus Eleodes, including similar appearance and defensive head-standing behavior despite lacking chemical defenses.
Trichoton sordidum
Trichoton sordidum is a small, flightless darkling beetle (Tenebrionidae) native to the Sonoran Desert borderlands of southern Arizona and northern Mexico. The species exhibits sophisticated behavioral thermoregulation, including photonegativity and temperature-dependent activity patterns. Under resource limitation or environmental stress, individuals form adhesive aggregations or physical clumps of 2–10 beetles as a threat evasion mechanism. Dispersal follows cohesive patterns consistent with Minimum Risk Distribution models.
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