Agrilaxia arizonae

Obenberger, 1922

Agrilaxia arizonae is a of metallic wood-boring ( ) to the southwestern United States and Mexico. The species is currently treated as a synonym of Agrilaxia flavimana, though this status remains ambiguous in some taxonomic sources. It is associated with oak in montane regions of Arizona and has been collected by sweeping foliage of Quercus arizonica (Arizona oak) and other oak species.

Pronunciation

How to pronounce Agrilaxia arizonae: /ˌæɡrɪˈlæksiə əˌrɪˈzoʊniː/

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Identification

Small with typical Agrilaxia . Distinguished from related by subtle differences in coloration and body proportions, though specific diagnostic characters are not well documented in available literature. As a synonym of A. flavimana, it shares the general appearance of that species: small size, compact body, and metallic coloration typical of the .

Habitat

Montane oak woodlands and riparian corridors in southeastern Arizona. Associated with Quercus arizonica (Arizona oak) and potentially other oak . Collected at elevations in the Huachuca Mountains and similar sky island .

Distribution

Recorded from Arizona, USA (Huachuca Mountains, Chiricahua Mountains region) and Mexico. Distribution records in GBIF indicate presence in Middle America and North America, with a specific record from Ontario, Canada (likely in error or requiring verification).

Seasonality

Active during late spring to early summer (May-June). A single field observation from June 2022 in the Huachuca Mountains, Arizona.

Host Associations

  • Quercus arizonica - swept from foliageArizona oak in montane woodland

Behavior

have been observed on oak foliage and are likely . Collected by sweeping upper branches with aerial , suggesting adults occupy higher foliage positions rather than lower branches accessible by beating sheets.

Similar Taxa

  • Agrilaxia flavimanaCurrently considered a synonym; taxonomic distinction unclear
  • Agrilaxia texanaSimilar size and preference (oak-associated), but distinct with different distribution
  • Brachys spp.Small oak-associated with similar and ; Brachys typically have more pronounced elytral sculpturing

More Details

Taxonomic Status

Agrilaxia arizonae is listed as an ambiguous synonym of Agrilaxia flavimana in Catalogue of Life, with authorship attributed to Obenberger, 1922. GBIF lists Chamberlin, 1926 as an alternative authorship. The was treated as valid in some older literature but current consensus favors synonymy with A. flavimana. iNaturalist records (21 observations) may reflect historical usage or field identifications pending taxonomic revision.

Collecting Methodology

Based on field observations from 2022, A. arizonae (or specimens identified as such) was collected using long-handled aerial to sweep upper foliage of oaks, a technique demonstrating superior compared to traditional beating sheets for accessing higher branches. This method may explain relative rarity in collections compared to more accessible .

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Sources and further reading