Diet

• Adults: Adults of Ptychodes are associated with woody plants.

• Larvae: Wood-boring, developing within dead, dying or weakened woody stems and branches, where they feed on the wood and construct galleries.

• The species' specific larval host plants have not been sufficiently documented to confidently recommend a particular tree for searching.

Range

• Ptychodes bifasciatus is a Mexican longhorn beetle in the family Cerambycidae, subfamily Lamiinae, tribe Lamiini.

• The species is also documented in the Zihuatanejo area, establishing that its range extends into the Pacific coastal region of Guerrero.

• Around Zihuatanejo, it should be considered an occasional sighting. It may be encountered in suitable tropical dry-forest and woodland habitat, particularly where mature woody vegetation is present.

Habitat

• Associated with tropical and subtropical woodland, tropical dry forest, forest margins and areas containing mature or weakened woody vegetation.

• Adults may be found on tree trunks, branches and foliage, where their dark-and-pale pattern provides effective camouflage.

• Dead and declining branches are particularly relevant because the immature stages develop inside woody material.

Size

• Adult length: approximately 24–29 mm (0.9–1.1 in).

• Body robust and elongated, with the very long antennae characteristic of Lamiinae.

• The body is predominantly dark, with conspicuous pale longitudinal bands and spots across the elytra.