Cicindelidia punctulata chihuahuae
Chihuahua Tiger Beetle, Chihuahua Punctured Tiger Beetle
Cicindelidia punctulata chihuahuae is a western of the punctured , distinguished from the nominate eastern subspecies by its greenish coloration. It occurs in dry grassland and open with exposed clay or sandy-loam substrates across the southwestern United States and adjacent Mexico. are active during warmer months, with observations spanning late spring through fall. The subspecies exhibits characteristic tiger beetle behaviors including fast running and visual on small .
Pronunciation
How to pronounce Cicindelidia punctulata chihuahuae: /sɪˌsɪnˌdeɪˈlɪdiə ˌpʌŋkˈtjʊlətə ˌʧiːˈwɑweɪ/
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Identification
Distinguished from nominate C. p. punctulata by greenish rather than dark coloration. Separated from similar C. nigrocoerulea (black sky ) by: single on (versus two in C. nigrocoerulea); subparallel slightly wider posteriorly (versus subarcuate in C. nigrocoerulea); and generally shinier rather than opaque elytral surface. Dark brown individuals may be confused with C. nigrocoerulea but typically lack the rounded elytral sides and dull texture of that .
Habitat
Dry grasslands, open sandy or clay exposures, and disturbed ground in lowland to upland areas. Observed on sandy-loam two-tracks, exposed clay embankments, and alkaline flats. Associated with juniper chaparral, mesquite chaparral, and saltbush shrubland vegetation zones. Tolerates disturbed including roadsides and abandoned quarries.
Distribution
Southwestern United States (New Mexico, western Texas, Oklahoma Panhandle, southeastern Arizona) and adjacent northern Mexico (Chihuahua region). Records from Kansas suggest possible vagrancy or intergrade in the southern Great Plains.
Seasonality
activity observed from late spring (May) through fall (September), with peak activity during summer months. Absent during winter when temperatures fall below freezing. September observations in New Mexico indicate extended fall activity period.
Diet
Visual on small . Specific items not documented for this but presumed similar to other Cicindelidia .
Life Cycle
with , larval, pupal, and stages. construct vertical burrows in soil, presumed to be in exposed clay or sandy substrates based on adult associations. Detailed not documented for this .
Behavior
, fast-running that actively pursues . thermoregulate by seeking during peak heat. Exhibits characteristic : short, low flights when disturbed, often returning to ground quickly. activity has been observed, with individuals found on exposed substrates after dark.
Ecological Role
in open ground . likely influenced by substrate temperature and moisture availability.
Human Relevance
Subject of entomological and observation. No documented economic importance. Occasionally encountered in campgrounds and recreational areas.
Similar Taxa
- Cicindelidia punctulata punctulataNominate eastern ; distinguished by dark coloration versus greenish in C. p. chihuahuae. in contact zones may show intergrade coloration.
- Cicindelidia nigrocoeruleaOverlaps in and dark color forms; distinguished by two on , subarcuate , and dull opaque elytral surface.
More Details
Taxonomic Note
The name chihuahuae refers to the Mexican state of Chihuahua, the region. The was originally described as Cicindela punctulata by Olivier (1790) and later transferred to Cicindelidia based on phylogenetic studies. Some authors have used the farcical name 'Cicindela ubiquita' to emphasize the species' widespread occurrence, but this has no taxonomic validity.
Population Variation
in the Oklahoma Panhandle show greenish coloration suggesting intergradation between nominate and western . Dark individuals in eastern New Mexico may represent either C. p. chihuahuae variants or misidentifications requiring careful examination of antennal and elytral shape.