Ceanothia essigi
This record describes Ceanothia essigi (species). Recorded family: Psyllidae. Recorded order: Hemiptera.
Identification and Appearance

General color dark; forewings subcoriaceous, dark except proximal hyaline area, with large medial cell and very small pterostigma; posterior tibiae white; genal processes large, conical, contiguous basally; discal foveae inconspicuous
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
- Suborder
- Sternorrhyncha
- Superfamily
- Psylloidea
- Family
- Psyllidae
- Subfamily
- Psyllinae
- Genus
- Ceanothia
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
California, from San Diego north to at least Monterey county
Seasonal Activity
Adults have been observed from January - June.
Diet and Behavior
Diet: Ceanothus including C. tomentosus, C. crassifolius, C. oliganthus, & C. papillosus
Life History
Nymphs have been observed in large numbers on Ceanothus in February at ground level on the main branch, sheltered in a depression on the branch. On other bushes, nymphs have been found in groups on the main branches just below the surface of the soil in the region of root attachment. The nymphs produce wax filaments.
Additional species information
Species notes from the sources
Etymology: Ceanothia essigi (Jensen, 1957) While Hodkinson & Hollis (1987) moved all four of Jensen's Ceanothus -feeding psyllids from Arytaina to Ceanothia , this species in particular appears to be more closely related to Euglyptoneura , with which it is more consistent in regards to head and wing characters as described by Heslop-Harrison in his definitions of the genera. In his original description, Jensen himself mentioned that this species is closest to Arytaina fuscipennis , which is now treated in the genus Euglyptoneura .
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Ceanothia essigi. 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 Ceanothia essigi (4)
Photo credits: Contributed by Chris Mallory
Frequently Asked Questions About Ceanothia essigi
What is Ceanothia essigi?
Ceanothia essigi is a species in the family Psyllidae, within the order Hemiptera.
How do you identify Ceanothia essigi?
General color dark; forewings subcoriaceous, dark except proximal hyaline area, with large medial cell and very small pterostigma; posterior tibiae white; genal processes large, conical, contiguous basally; discal foveae inconspicuous
Where is Ceanothia essigi found?
Range: California, from San Diego north to at least Monterey county
What does Ceanothia essigi eat?
The diet of the Ceanothia essigi includes Ceanothus including C. tomentosus, C. crassifolius, C. oliganthus, & C. papillosus.
When is Ceanothia essigi active?
Ceanothia essigi: seasonal activity - Adults have been observed from January - June..
What is the life cycle of a Ceanothia essigi?
Nymphs have been observed in large numbers on Ceanothus in February at ground level on the main branch, sheltered in a depression on the branch. On other bushes, nymphs have been found in groups on the main branches just below the surface of the soil in the region of root attachment. The nymphs produce wax filaments.
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