Kuno scale
Eulecanium kunoense
This record describes Eulecanium kunoense (species). Recorded family: Coccidae. Recorded order: Hemiptera.
Identification and Appearance

Adult female is round or oval and has a reddish color with a black pattern. Field characteristics are enough to distinguish this species. It is distinct morphologically from all other N. American soft scales except E. tiliae , which lacks the distinct dorsal pattern of E. kunoense , which also has a broad internal lip of the body margin where the female attaches to the host
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
- Suborder
- Sternorrhyncha
- Superfamily
- Coccoidea
- Family
- Coccidae (Soft Scale Insects)
- Genus
- Eulecanium
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
native to E Asia; in California since at least 1896. As of 1988, restricted to Bay Area + Lake, Butte, and Sacramento counties
Seasonal Activity
One generation per year (Mar‒May)
Diet and Behavior
Diet: Stone fruit trees; apple trees; pear trees
Additional species information
Species notes from the sources
Etymology: Eulecanium kunoense (Kuwana 1907)
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Eulecanium kunoense. 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 Kuno scale (5)
Photo credits: Contributed by Joyce Gross; Additional contributions by Beatriz Moisset , v belov
Frequently Asked Questions About Kuno scale
What is Kuno scale?
Kuno scale (Eulecanium kunoense) is a species in the family Coccidae, within the order Hemiptera.
How big is Kuno scale?
3‒4 mm
How do you identify Kuno scale?
Adult female is round or oval and has a reddish color with a black pattern. Field characteristics are enough to distinguish this species. It is distinct morphologically from all other N. American soft scales except E. tiliae , which lacks the distinct dorsal pattern of E. kunoense , which also has a broad internal lip of the body margin where the female attaches to the host
Where is Kuno scale found?
Range: native to E Asia; in California since at least 1896. As of 1988, restricted to Bay Area + Lake, Butte, and Sacramento counties
What does Kuno scale eat?
The diet of the Kuno scale includes Stone fruit trees; apple trees; pear trees.
When is Kuno scale active?
Kuno scale: seasonal activity - One generation per year (Mar‒May).
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