Playa-wetland
Guides
Callibaetis floridanus
small minnow mayfly
Callibaetis floridanus is a small minnow mayfly (Ephemeroptera: Baetidae) native to North and Central America. The species inhabits diverse aquatic environments including coastal ponds subject to saltwater intrusion and temporary wetlands (playas) in arid regions. Research demonstrates significant physiological plasticity in ion regulation, with populations capable of acclimating to salinities ranging from 113 to 9,921 µS/cm. Naiad development averages approximately 24 days from egg hatch to adulthood.
Tropisternus lateralis nimbatus
Tropisternus lateralis nimbatus is a subspecies of water scavenger beetle in the family Hydrophilidae. It colonizes temporary playa wetlands on the Southern High Plains of Texas during flood periods, arriving from surrounding aquatic habitats via aerial dispersal. The subspecies has been documented across a broad geographic range including North, Central, and South America, as well as Caribbean islands.