Pachybrachis convictus

Pachybrachis species are small, rounded leaf beetles with a somewhat humped or convex dorsal profile. They possess enlarged hind femora adapted for jumping. Identification to species level requires examination of genitalia and detailed morphological features; P. convictus can be distinguished from congeners by subtle differences in coloration, punctation patterns, and male genitalic structure. The specific epithet "convictus" (Latin for "convicted" or "banded") may refer to color pattern markings, though this is speculative without original description access.

Documented from oak-juniper woodland and mesquite-acacia scrub in southeastern Arizona. Associated with Quercus oblongifolia (Mexican blue oak), Senegalia greggii (cat-claw acacia), and Prosopis glandulosa (mesquite). Occurs in Madrean sky island habitats at moderate elevations.

United States: recorded from Arizona. The GBIF distribution records indicate presence in North America, with specific documentation from the southwestern United States.

Adults have been collected in late July in southeastern Arizona, suggesting summer activity. The broader genus shows activity from spring through fall depending on elevation and latitude.

• Quercus oblongifolia - associated_withbeaten from foliage
• Senegalia greggii - associated_withbeaten from foliage
• Prosopis glandulosa - associated_withbeaten from foliage

Adults have been collected by beating foliage of woody host plants. Like other Pachybrachis, likely diurnal and active on vegetation. Attracted to ultraviolet light at night, as documented in a mixed Pachybrachis series collected at UV/MV light station in mesquite-acacia scrub.

Herbivorous leaf beetle, likely contributing to nutrient cycling through leaf feeding. Serves as prey for various insectivores including birds, spiders, and predatory insects. The genus Pachybrachis is part of diverse chrysomelid communities in southwestern oak woodlands.

• Other Pachybrachis speciesNumerous congeners occur in sympatry in the Southwest; require genitalic examination for definitive identification. P. convictus is part of a complex of similar small, dark species.
• Clytrini (Clytrinae)Other case-bearing leaf beetles in the same subfamily Clytrinae share similar body form and jumping hind legs; Pachybrachis can be distinguished by antennal structure and other subtle features.

• leaf beetle
• Chrysomelidae
• Clytrinae
• case-bearing beetle
• Arizona
• oak woodland
• jumping beetle

• BugGuide
• Wikipedia
• GBIF taxonomy match
• Belostomatidae | Beetles In The Bush