Diet

• Adults: Primarily feed on pollen, nectar, flowers and tender plant tissues. Adults may be found visiting flowering trees and shrubs.

• Larvae: Wood-boring, developing inside dead, dying or weakened branches and stems, where they feed on the woody tissues.

• The specific larval host plants of S. trilineatus are not well documented.

Range

• Sphaenothecus trilineatus is a Neotropical longhorn beetle in the family Cerambycidae, occurring primarily in Mexico and Central America.

• It is associated with warm tropical and subtropical regions of Mexico, including Guerrero.

• Around Zihuatanejo, it is occasional, and the tropical dry-forest habitat provides suitable conditions for the species.

• Adults are most likely to be noticed during the rainy season, when flowering vegetation and fresh woody growth are abundant.

Habitat

• Found in tropical dry forest, tropical deciduous forest, woodland, scrub, forest edges and secondary vegetation.

• Adults may be found on flowers, foliage, branches and tree trunks, particularly in sunny locations.

• Around Zihuatanejo, flowering trees and shrubs are good places to search during the day.

• Larvae remain concealed inside dead or weakened branches, where their galleries are protected from predators and environmental extremes.

Size

• Adult length: approximately 15–25 mm (0.6–1.0 in).

• Body elongated and moderately robust, with long antennae characteristic of Cerambycidae.

• The body has a distinctive combination of dark brown to black colouring and three pale longitudinal bands or lines across the elytra.