Bug FAQBanded Elm Bark Beetle
Scolytus schevyrewi · Order: Coleoptera · Family: Curculionidae
Source: Wikipedia
The banded elm bark beetle is about 3 to 4 mm long. It originates from Asia and has been accidentally introduced to North America. It carries the fungi that cause Dutch elm disease.
Source: Wikipedia
Size
Adults measure roughly three to four millimetres in length.
Source: Wikipedia
Is it a pest in the house?
It is a vector of Dutch elm disease, which is caused by the fungi Ophiostoma ulmi and Ophiostoma novo-ulmi.
Source: Wikipedia
Where it comes from
The species is native to Asia and was unintentionally brought to North America.
Source: Wikipedia
Where it is found in the US
Recorded in 15 of 51 states and DC. Most records: Kentucky, Indiana, Colorado, Illinois, Kansas, Arizona, Wisconsin, Pennsylvania.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: introduced in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
What disease does the banded elm bark beetle spread?
It spreads Dutch elm disease, which is caused by the fungi Ophiostoma ulmi and Ophiostoma novo-ulmi.
Source: Wikipedia
How big is the banded elm bark beetle?
Adults are about three to four millimetres long.
Source: Wikipedia
Where did the banded elm bark beetle come from?
It is native to Asia and was accidentally introduced to North America.
Source: Wikipedia
Same family (Curculionidae)
Green Immigrant Leaf WeevilPolydrusus formosusDamages trees, gardens or crops
Black Vine WeevilOtiorhynchus sulcatusDamages trees, gardens or crops
Nettle weevilPhyllobius pomaceusDamages trees, gardens or crops
Asian Oak WeevilCyrtepistomus castaneusDamages trees, gardens or crops
Strawberry Root WeevilOtiorhynchus ovatusDamages trees, gardens or crops
Common Leaf WeevilPhyllobius pyriDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Scolytus_schevyrewi
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-27 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-27.