Dactylotrypes

Dactylotrypes species are distinguished from other scolytine genera by features of the pronotum and elytra. Dactylotrypes longicollis is characterized by an elongated pronotum relative to body length, which contributes to its specific epithet. As with other bark beetles, identification relies on examination of antennal club structure, pronotal shape, and elytral declivity patterns.

Associated with woody substrates; Dactylotrypes longicollis has been found in association with dead or dying wood.

The genus has an Old World distribution; Dactylotrypes longicollis is native to regions outside North America and was first recorded in California in 2012, representing a new continental record.

• Unknown - phytophagousSpecific host plants for Dactylotrypes species are not well documented; bark beetles in this group typically breed in woody tissues.

Bark beetles in this genus tunnel in wood and are likely to exhibit gallery construction behavior typical of Scolytinae, though specific behavioral details for Dactylotrypes are not well documented.

As with other bark beetles, species in this genus likely function as decomposers of dead wood and may contribute to nutrient cycling in forest ecosystems.

Dactylotrypes longicollis is of interest as an exotic species newly introduced to North America; its potential economic or ecological impacts have not been fully assessed.

• Other Scolytinae generaDactylotrypes can be distinguished by its elongated pronotum and specific antennal and elytral characteristics; close relatives within the Scolytinae require microscopic examination for definitive separation.

• bark beetle
• Scolytinae
• exotic species
• invasive potential
• wood-boring beetle

• BugGuide
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• The Pan-Pacific Entomologist 88(2)—Penrose Memorial issue | Beetles In The Bush