ColeopteraCurculionidae – Snout and Bark Beetles

Xylosandrus crassiusculus

This record describes Xylosandrus crassiusculus (species). Recorded family: Curculionidae. Recorded order: Coleoptera.

Identification and Appearance

Xylosandrus crassiusculus - Xylosandrus crassiusculus
Contributed by v belov; Additional contributions by Beatriz Moisset , Mike Quinn , mfdigiro , Kyhl Austin

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Curculionoidea
Family
Curculionidae (Snout and Bark Beetles)
Subfamily
Scolytinae
Tribe
Xyleborini
Genus
Xylosandrus

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Geographic Range

in our area, e. US (MA-FL to MI-NE-TX) & ON ; native to E. Asia , adventive elsewhere, spreads by timber trade

Seasonal Activity

trapped most frequently during the spring [cite:185010]

Diet and Behavior

Diet: polyphagous; hosts include members of 46 families

Life History

beetles attack the tree trunk and push the frass out of galleries in a distinctive toothpick fashion [cite:185010]

Additional species information

Species notes from the sources

Etymology: Xylosandrus crassiusculus (Motschulsky 1866)

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Xylosandrus crassiusculus. Species-specific details appear above.

Group overview

Coleoptera is the largest order of insects with over 400,000 described species, representing ~25% of all known animal species and ~40% of all insects. In the U.S. alone, nearly 30,000 beetle species have been identified.

Ecological role of the group

Beetles are prominent decomposers, especially in forests, breaking down dead wood and recycling nutrients. As predators, they reduce populations of pest insects. Many species are also important pollinators of flowering plants.

Economic and practical significance of the group

Beetles have major economic significance: leaf beetles (Chrysomelidae) and weevils (Curculionoidea) are among the most destructive agricultural pests globally, costing billions annually, while predatory species like ladybugs provide natural pest control.

Recorded sources for this group: Britannica, Smithsonian, NCSU Entomology. Imported estimates may describe particular regions or reporting periods.

Explore Coleoptera families and species →

Photos of Xylosandrus crassiusculus (2)

Xylosandrus crassiusculus - photo 1
Contributed by v belov; Additional contributions by Beatriz Moisset , Mike Quinn , mfdigiro , Kyhl Austin
Xylosandrus crassiusculus - photo 2
Contributed by v belov; Additional contributions by Beatriz Moisset , Mike Quinn , mfdigiro , Kyhl Austin

Photo credits: Contributed by v belov; Additional contributions by Beatriz Moisset , Mike Quinn , mfdigiro , Kyhl Austin

Frequently Asked Questions About Xylosandrus crassiusculus

How big is Xylosandrus crassiusculus?

♀ 2.1-2.9 mm, ♂ 1.5 mm

Where is Xylosandrus crassiusculus found?

Range: in our area, e. US (MA-FL to MI-NE-TX) & ON ; native to E. Asia , adventive elsewhere, spreads by timber trade

What does Xylosandrus crassiusculus eat?

The diet of the Xylosandrus crassiusculus includes polyphagous; hosts include members of 46 families.

When is Xylosandrus crassiusculus active?

Xylosandrus crassiusculus: seasonal activity - trapped most frequently during the spring [cite:185010].

What is the life cycle of a Xylosandrus crassiusculus?

beetles attack the tree trunk and push the frass out of galleries in a distinctive toothpick fashion [cite:185010]

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by v belov; Additional contributions by Beatriz Moisset , Mike Quinn , mfdigiro , Kyhl Austin. Contributors retain copyright over their individual contributions.