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

Length: 5.5 to 7 mm. A large species with numerous white cross-veins and black mottling on the forewings, and several dark dots and a pair of narrow diagonal lines on the vertex. Base colour brownish or greenish, variable in intensity. A mixtus lacks the dark lines on the vertex Can be identified from good quality photographs; these must show the vertex Open, deciduous woodlands, especially moist habitats. The adults can be found on various deciduous woody plants. Common. (ref.: UK Auchenorrhyncha checklist 2021 on British Bugs website) https://www.britishbugs.org.uk/homoptera/Cicadellidae/Allygus_modestus.html
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hemiptera
- Family
- Cicadellidae
- Genus
- Allygus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Open, deciduous woodlands, especially moist habitats. The adults can be found on various deciduous woody plants.
Seasonal Activity
Adult: June to October
Diet and Behavior
Life History
The nymphs feed on grasses.
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 Allygus modestus. 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 Allygus modestus (10)
Frequently Asked Questions About Allygus modestus
What is Allygus modestus?
Allygus modestus is a species in the family Cicadellidae, within the order Hemiptera.
How big is Allygus modestus?
5.5 to 7 mm. A large species with numerous white cross-veins and black mottling on the forewings, and several dark dots and a pair of narrow diagonal lines on the vertex. Base colour brownish or greenish, variable in intensity.
Where is Allygus modestus found?
Habitat: Open, deciduous woodlands, especially moist habitats. The adults can be found on various deciduous woody plants.
When is Allygus modestus active?
Allygus modestus: seasonal activity - Adult: June to October.
What is the life cycle of a Allygus modestus?
The nymphs feed on grasses.
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