Phaedon cyanescens
This record describes Phaedon cyanescens (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.
Identification and Appearance

Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Polyphaga
- Superfamily
- Chrysomeloidea
- Family
- Chrysomelidae (Leaf Beetles)
- Subfamily
- Chrysomelinae
- Tribe
- Chrysomelini
- Genus
- Phaedon
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
s.CA to w.TX, CO / Mex. to C. Amer. - Map
Seasonal Activity
most records from Aug.
Diet and Behavior
Diet: Asso. w/ a variety of Asteraceae ( 3 )
Additional species information
Species notes from the sources
Etymology: Phaedon cyanescens Stål, 1860
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Phaedon cyanescens. 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 Phaedon cyanescens (2)
Photo credits: Contributed by Mike Quinn
Frequently Asked Questions About Phaedon cyanescens
Where is Phaedon cyanescens found?
Range: s.CA to w.TX, CO / Mex. to C. Amer. - Map
What does Phaedon cyanescens eat?
The diet of the Phaedon cyanescens includes Asso. w/ a variety of Asteraceae ( 3 ).
When is Phaedon cyanescens active?
Phaedon cyanescens: seasonal activity - most records from Aug..
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