Bug FAQTwo-horned Treehopper
Stictocephala diceros · Order: Hemiptera · Family: Membracidae
The two-horned treehopper is a small brown insect about 8 to 9 mm long. It lives in temperate hardwood forests across much of eastern North America, including parts of the United States and southeastern Canada.
Source: Wikipedia
How to recognize it
It is brown and measures roughly 8 to 9 mm in length.
Source: Wikipedia
Size
Adults reach about 8 to 9 mm long.
Source: Wikipedia
Where it lives
It inhabits temperate hardwood forests.
Source: Wikipedia
Where it is found in the US
Recorded in 39 of 51 states and DC. Most records: New York, Pennsylvania, Illinois, Ohio, Vermont, Michigan, Minnesota, Wisconsin.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Same family (Membracidae)
Keeled TreehopperEntylia carinata
Buffalo TreehopperStictocephala bisoniaDamages trees, gardens or crops
Horned TreehopperCentrotus cornutus
Oak TreehopperPlatycotis vittata
Mexican TreehopperMembracis mexicanaDamages trees, gardens or crops
Three-cornered Alfalfa HopperSpissistilus festinusDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Stictocephala_diceros
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.