HemipteraCicadellidae – Typical Leafhoppers

Idiocerus delongi

This record describes Idiocerus delongi (species). Recorded family: Cicadellidae. Recorded order: Hemiptera.

Identification and Appearance

Idiocerus delongi - Idiocerus delongi
Contributed by Solomon V. Hendrix; Additional contributions by v belov
FeatureDescription
Additional detailsResembling productus in general appearance, but vertex of male not produced, antennal disc larger, and with distinctly different genitalia. Vertex evenly rounded, nearly same length in middle as near eyes. Postclypeus little longer than wide; anteclypeus longer than wide, slightly expanded at apex. Male antennae with a circular disc at apex.
ForewingForewing flaring, with a large appendix. Color . - Vertex yellow, with two black spo~ about twice their own width from eyes. Face of male uniformly yellow. Face of female mostly brown spotted with yellow.
PronotumPronotum brown mottled with yellow and black. Scutellum brown with black triangles.
ForewingForewing yellow brown with. a wide brown band across middle, veins dark brown interrupted across anteapical area with yellow. Male genitalia . - Plate long, thin, wider near truncate apex. Pygofer long, with a pointed apex. Style narrowing slightly to a bluntly pointed apex, witn several large combined apical spines. Connective shaped like an inverted T, with a pointed ventral projection. Aedeagus with shaft narrowing to a flattened apex, gonopore at apex, long narrow process on each side of shaft just basal to gonopore; apodeme enlarged at apex, with a dorsal expansion. Female genitalia . - Ovipositor short, stocky, extending slightly more than its own width beyond pygofer. Pygofer short and broadly rounded. Posterior margin of seventh sternum produced with a median emargination. (Freytag, 1965) From Bliven, 1966, where delongi is synonymized with subnitens : Freytag's drawings of the genitalia or subnitens do not agree with DeLong's (1948). His figures for delongi , however, do agree very well. Hamilton (1980) treats the species as valid, but doesn't mention Bliven's synonymy beyond: Bliven (1966) attributed considerable reliability to published illustrations of styles. I cannot agree with him, as these structures frequently have been drawn from varying angles, and with varying degrees of accuracy.

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

British Columbia, California

Diet and Behavior

Diet: unknown

Additional species information

Species notes from the sources

Etymology: Idiocerus delongi Freytag 1965

About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group

Order-level background for Hemiptera, the group containing Idiocerus delongi. 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 →

Frequently Asked Questions About Idiocerus delongi

What is Idiocerus delongi?

Idiocerus delongi is a species in the family Cicadellidae, within the order Hemiptera.

How big is Idiocerus delongi?

Male 6.1 mm, female 5.9 to 6.6 mm (Freytag, 1965)

How do you identify Idiocerus delongi?
FeatureDescription
Additional detailsResembling productus in general appearance, but vertex of male not produced, antennal disc larger, and with distinctly different genitalia. Vertex evenly rounded, nearly same length in middle as near eyes. Postclypeus little longer than wide; anteclypeus longer than wide, slightly expanded at apex. Male antennae with a circular disc at apex.
ForewingForewing flaring, with a large appendix. Color . - Vertex yellow, with two black spo~ about twice their own width from eyes. Face of male uniformly yellow. Face of female mostly brown spotted with yellow.
PronotumPronotum brown mottled with yellow and black. Scutellum brown with black triangles.
ForewingForewing yellow brown with. a wide brown band across middle, veins dark brown interrupted across anteapical area with yellow. Male genitalia . - Plate long, thin, wider near truncate apex. Pygofer long, with a pointed apex. Style narrowing slightly to a bluntly pointed apex, witn several large combined apical spines. Connective shaped like an inverted T, with a pointed ventral projection. Aedeagus with shaft narrowing to a flattened apex, gonopore at apex, long narrow process on each side of shaft just basal to gonopore; apodeme enlarged at apex, with a dorsal expansion. Female genitalia . - Ovipositor short, stocky, extending slightly more than its own width beyond pygofer. Pygofer short and broadly rounded. Posterior margin of seventh sternum produced with a median emargination. (Freytag, 1965)
Where is Idiocerus delongi found?

Range: British Columbia, California

What does Idiocerus delongi eat?

The diet of the Idiocerus delongi includes unknown.

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

Photo credits: Contributed by Solomon V. Hendrix; Additional contributions by v belov. Contributors retain copyright over their individual contributions.