Desert-ecology
Guides
Asphondylia resinosa
Creosote Resin Gall Midge
Asphondylia resinosa is a gall midge in the family Cecidomyiidae that induces distinctive resinous galls on creosote bush (Larrea tridentata). The species was described by Gagné in 1990 and is one of approximately 15 Asphondylia species known to induce galls on creosote bush. Like other gall midges, the larva develops inside the plant tissue, with the gall providing both shelter and nutrition. The specific epithet 'resinosa' refers to the resinous character of the galls it produces.
Hogna carolinensis
Carolina wolf spider, giant wolf spider
Hogna carolinensis, the Carolina wolf spider, is the largest wolf spider in North America. Females reach 22–35 mm in body length, males 18–20 mm. This species inhabits self-made or appropriated burrows in open habitats across a broad geographic range. Females carry egg sacs attached to their abdomen during the approximately two-week incubation period, and spiderlings cling to the mother's back for several days after hatching. The species is notable for its eye shine when illuminated at night, effective thermoregulation abilities, and unique venom containing lycotoxins with antimicrobial properties.
Marginitermes hubbardi
light western drywood termite
Marginitermes hubbardi, commonly called the light western drywood termite, is a drywood termite species in the family Kalotermitidae. It is distinguished from the sympatric Incisitermes minor by its notably paler winged reproductives. The species is native to arid regions of southwestern North America and Central America, where it colonizes dry wood including living trees, dead cacti, and human structures. Unlike dampwood or subterranean termites, it does not require soil contact or high moisture levels to establish colonies.
Nanorchestidae
Nanorchestidae is a family of small soil-dwelling mites in the order Endeostigmata. The family contains two recognized genera, Nanorchestes and Speleorchestes, which show distinct ecological partitioning: Nanorchestes dominates cold desert and polar habitats, while Speleorchestes inhabits hot deserts. This distribution correlates with structural differences in the cuticle. Members of this family may achieve high numerical abundance in extreme desert soils.
Pogonomyrmex californicus
California harvester ant
Pogonomyrmex californicus is a seed-harvesting ant native to southwestern North America. It is the most widely distributed species in the genus Pogonomyrmex. The species exhibits a striking social polymorphism: most populations have single-queen colonies (monogyny), but some California populations show primary polygyny where multiple unrelated queens cooperate in colony founding and coexist in mature colonies. It possesses a powerful sting and has been used historically by Indigenous peoples for ritual and medicinal purposes. The species is a prominent model for studying the evolution of social behavior, cooperation, and epigenetic regulation of aggression.
Pogonomyrmex californicus subnitidus
Pogonomyrmex californicus subnitidus is a subspecies of the California harvester ant, a seed-collecting ant native to arid regions of western North America. Like other harvester ants, it constructs conspicuous nest disks cleared of vegetation and plays significant ecological roles as a seed predator, soil engineer, and food source for vertebrate predators. The species possesses a powerful sting used defensively against mammalian threats. This subspecies is part of a taxon increasingly recognized as a keystone species in desert ecosystems rather than an agricultural pest.
Tegeticula
yucca moths
Tegeticula is a genus of moths in the family Prodoxidae, commonly known as yucca moths. These insects are obligate mutualistic pollinators of various Yucca and Hesperoyucca species, representing one of the classic examples of coevolution between plants and insects. The genus includes both pollinating species and derived 'cheater' species that do not pollinate their hosts. Female moths possess specialized tentacles for collecting and depositing pollen, and their ovipositors are adapted to specific host plant structures.