HemipteraCoccidae – Soft Scale Insects

Kuno scale

Eulecanium kunoense

This record describes Eulecanium kunoense (species). Recorded family: Coccidae. Recorded order: Hemiptera.

Identification and Appearance

Kuno scale - Eulecanium kunoense
Contributed by Joyce Gross; Additional contributions by Beatriz Moisset , v belov

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.

Explore Hemiptera families and species →

Photos of Kuno scale (5)

Kuno scale - photo 1
Contributed by Joyce Gross; Additional contributions by Beatriz Moisset , v belov
Kuno scale - photo 2
Contributed by Joyce Gross; Additional contributions by Beatriz Moisset , v belov
Kuno scale - photo 3
Contributed by Joyce Gross; Additional contributions by Beatriz Moisset , v belov
Kuno scale - photo 4
Contributed by Joyce Gross; Additional contributions by Beatriz Moisset , v belov
Kuno scale - photo 5
Contributed by Joyce Gross; Additional contributions by Beatriz Moisset , v belov

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).

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Joyce Gross; Additional contributions by Beatriz Moisset , v belov. Contributors retain copyright over their individual contributions.