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

| Feature | Description |
|---|---|
| Additional details | Resembing nervatus V. D. but larger with large yellowish triangles on scutellum. Bright green in color rather than pallid. Male antennae banded with black, white and fuscous. Never occurs on willows although the latter grow abundantly in the type locality. Clypeus convex, lateral margins not elevated. Vertex broadly arcuated, base and anterior margin parallel, as long in the middle as next to an eye. Hind margin of pronotum broadly angulated with a broadly v-shaped notch at middle, sides flaring and covering a large portion of the scutellar triangles. Each male antennal disc rather small, oval, on a very stout filament, the latter appreciably thickened at base and distally, constricted in the middle. Female seventh sternite slightly produced at middle, trisinuate, scarcely distinguishable from that of wiyotus n. sp. Color bright green. |
| Eyes | Eyes, tarsal claws and tip of rostrum, blacky sharply contrasting. Scutellum with large yellow or dark green triangles. Dark markings of mesoscutum showing through the translucent surface of pronotum. |
| Elytra | Elytra greenish hyaline the commissural margins and nervures becoming infuscated apically in the male. Apices lightly infumated. Males with a fuscous dash on the first cross nervure before the discal cell, this lacking in the female. Filament of antennal disc with wide fuscous band near proximal end, distal portion, including pointed tip of disc, whitish. Disc black. Distal style, in the unbroken state longer than antennal disc, black proximally, whitish apically. Sutural margins in female concolorous, green throughout. Apical nervures not so strongly infuscated as in the male and apices less infumated. (Bliven, 1954) |
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
- Suborder
- Auchenorrhyncha
- Superfamily
- Membracoidea
- Family
- Cicadellidae (Typical Leafhoppers)
- Subfamily
- Eurymelinae
- Tribe
- Idiocerini
- Genus
- Idiocerus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
California (type locality: Shively)
Diet and Behavior
Diet: Sequoia sempervirens (coastal redwood)
Additional species information
Species notes from the sources
Etymology: Idiocerus laribaeus Bliven, 1954
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Idiocerus laribaeus. 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 Idiocerus laribaeus (2)
Photo credits: Contributed by Solomon V. Hendrix
Frequently Asked Questions About Idiocerus laribaeus
What is Idiocerus laribaeus?
Idiocerus laribaeus is a species in the family Cicadellidae, within the order Hemiptera.
How big is Idiocerus laribaeus?
4.8-5.1mm
How do you identify Idiocerus laribaeus?
| Feature | Description |
|---|---|
| Additional details | Resembing nervatus V. D. but larger with large yellowish triangles on scutellum. Bright green in color rather than pallid. Male antennae banded with black, white and fuscous. Never occurs on willows although the latter grow abundantly in the type locality. Clypeus convex, lateral margins not elevated. Vertex broadly arcuated, base and anterior margin parallel, as long in the middle as next to an eye. Hind margin of pronotum broadly angulated with a broadly v-shaped notch at middle, sides flaring and covering a large portion of the scutellar triangles. Each male antennal disc rather small, oval, on a very stout filament, the latter appreciably thickened at base and distally, constricted in the middle. Female seventh sternite slightly produced at middle, trisinuate, scarcely distinguishable from that of wiyotus n. sp. Color bright green. |
| Eyes | Eyes, tarsal claws and tip of rostrum, blacky sharply contrasting. Scutellum with large yellow or dark green triangles. Dark markings of mesoscutum showing through the translucent surface of pronotum. |
| Elytra | Elytra greenish hyaline the commissural margins and nervures becoming infuscated apically in the male. Apices lightly infumated. Males with a fuscous dash on the first cross nervure before the discal cell, this lacking in the female. Filament of antennal disc with wide fuscous band near proximal end, distal portion, including pointed tip of disc, whitish. Disc black. Distal style, in the unbroken state longer than antennal disc, black proximally, whitish apically. Sutural margins in female concolorous, green throughout. Apical nervures not so strongly infuscated as in the male and apices less infumated. (Bliven, 1954) |
Where is Idiocerus laribaeus found?
Range: California (type locality: Shively)
What does Idiocerus laribaeus eat?
The diet of the Idiocerus laribaeus includes Sequoia sempervirens (coastal redwood).
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