Micracis

Micracis species are small bark beetles with the characteristic rostrum (snout) of Curculionidae. They can be distinguished from related bark beetle genera by subtle morphological features of the elytral declivity and antennal club structure, though specific identification requires examination of microscopic characters.

Associated with woody plants; species inhabit bark and phloem tissues of trees and shrubs.

Native to North America; distribution patterns follow host plant ranges across temperate and subtropical regions.

Phloem and inner bark tissues of living or recently dead woody plants.

• woody plants - hostlarval and adult feeding in phloem

Complete metamorphosis with egg, larval, pupal, and adult stages. Larvae tunnel in phloem, creating characteristic galleries.

Gallery-forming in phloem; adults and larvae construct tunnel systems beneath bark.

Contributes to nutrient cycling through phloem consumption; some species may vector fungal pathogens.

Some species are minor forest pests; economic impact generally limited compared to more destructive bark beetle genera.

• IpsBoth are bark beetle genera in Curculionidae, but Ips species have distinct spines on the elytral declivity and are generally larger.
• DendroctonusLarger bark beetles with more pronounced frontal tubercles; Dendroctonus species often attack live, healthy trees while Micracis tends toward stressed or dead hosts.

• bark beetle
• Curculionidae
• phytophagous
• forest insect

• BugGuide
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life