Cicindela willistoni pseudosenilis

Distinguishing C. willistoni pseudosenilis from other C. willistoni subspecies requires examination of elytral maculation patterns and coloration. The nominate subspecies C. w. willistoni and C. w. estancia differ in geographic distribution and subtle morphological features. Precise identification typically requires reference to original descriptions and comparison with type specimens.

Associated with saline lake and salt flat environments. Within these habitats, occupies specific microhabitat zones—typically areas of thick, wet mud immediately adjacent to water edges. Habitat partitioning with sympatric tiger beetle species is pronounced, with each species restricted to distinct moisture and vegetation zones.

Western North America. Recorded from Canada and the United States. Specifically documented from the Owens Lake region of California and similar saline habitats in the arid western United States.

Adults active during post-monsoonal period in summer, following rains that trigger emergence. Activity period is relatively brief and tied to moisture availability in arid environments.

Life cycle includes egg, larval, and adult stages. Larvae are soil-inhabiting, likely restricted to specific moisture and salinity zones within salt flat habitats. Larval microhabitat associations appear more restrictive than those of adults.

Adults are fast-running, visually oriented predators characteristic of tiger beetles. Exhibits strong microhabitat fidelity within salt flat environments, occupying wet mud zones at water's edge. Co-occurs with other tiger beetle species through fine-scale spatial partitioning rather than temporal separation.

Predator in saline lake ecosystems. Contributes to resource partitioning guilds in salt flat habitats, where multiple tiger beetle species coexist by occupying distinct microhabitats. Mandible size correlates with preferred prey size, suggesting differential prey utilization among sympatric species.

Subject of ecological research on habitat partitioning and species coexistence. Attractive appearance makes it of interest to entomologists and nature photographers. Sensitive to habitat alteration in saline lake systems.

• Cicindela willistoni estanciaAnother subspecies of C. willistoni with overlapping habitat preferences; differs in geographic distribution and subtle morphological features
• Cicindela (Cicindelidia) nigrocoeruleaSympatric in salt flat habitats but occupies different microhabitat zone (damp sand 10-20m from water rather than water's edge)
• Ellipsoptera nevadicaSympatric in saline habitats and also occupies water's edge, but distinguished by genus-level differences in morphology and likely finer-scale microhabitat differences

• tiger beetle
• saline habitat
• salt flat
• habitat partitioning
• western North America
• monsoon-dependent
• Carabidae
• Cicindelinae

• BugGuide
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Habitat Partitionining in Tiger Beetles | Beetles In The Bush