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

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.
Photos of Xylosandrus crassiusculus (2)
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]
FROM LOOKING IT UP TO GETTING TO KNOW IT
Make sense of the bugs at home.50 household bug profiles for you. Photos, coloring, and activities for curious kids.


