Oncopsis alni
This record describes Oncopsis alni (species). Recorded family: Cicadellidae. Recorded order: Hemiptera.
Identification and Appearance

Length 5 - 6 mm; females larger than males. Sexually dimorphic and variable in colouration and intensity of markings. Nymphs cannot be verified. Predominantly yellowish-brown to reddish-brown. Detailed examination of the specimen is needed to identify this species. You must note the host plant. Common. (ref.: UK Auchenorrhyncha checklist 2021, on British Bugs website) https://www.britishbugs.org.uk/homoptera/Cicadellidae/Oncopsis_alni.html No additional images available for this species.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hemiptera
- Family
- Cicadellidae
- Genus
- Oncopsis
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Alder (
Seasonal Activity
Miid-May to September.
Additional species information
Recorded status
Common. (ref.:
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Oncopsis alni. Species-specific details appear above.
Group overview
Hemiptera (true bugs) includes over 80,000 described species across cicadas, aphids, leafhoppers, shield bugs, and bed bugs. Aphids alone cost global agriculture an estimated $2.5 billion annually in crop losses.
Ecological role of the group
Many Hemiptera are essential food sources for birds and predatory insects. Cicadas provide massive nutrient pulses during emergence events - a single Brood X emergence can involve trillions of individuals across 15 states.
Economic and practical significance of the group
The brown marmorated stink bug (Halyomorpha halys) caused $37 million in apple crop losses in a single year in the U.S. Mid-Atlantic region. Bed bug infestations in the U.S. increased by 500% between 2001-2010, costing the hotel industry hundreds of millions annually.
Recorded sources for this group: USDA, EPA, University research. Imported estimates may describe particular regions or reporting periods.
Photos of Oncopsis alni (10)
Frequently Asked Questions About Oncopsis alni
What is Oncopsis alni?
Oncopsis alni is a species in the family Cicadellidae, within the order Hemiptera.
How big is Oncopsis alni?
5 - 6 mm; females larger than males. Sexually dimorphic and variable in colouration and intensity of markings. Nymphs cannot be verified.
Where is Oncopsis alni found?
Habitat: Alder (
When is Oncopsis alni active?
Oncopsis alni: seasonal activity - Miid-May to September..
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