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

| Feature | Description |
|---|---|
| Additional details | Resembling 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. |
| Forewing | Forewing 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. |
| Pronotum | Pronotum brown mottled with yellow and black. Scutellum brown with black triangles. |
| Forewing | Forewing 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.
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?
| Feature | Description |
|---|---|
| Additional details | Resembling 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. |
| Forewing | Forewing 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. |
| Pronotum | Pronotum brown mottled with yellow and black. Scutellum brown with black triangles. |
| Forewing | Forewing 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.
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