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Species Account


BM(NHM).1988.343; Female; 'Cornville Oregon, USA'
E000700

BM(NHM).1954.585; Female; 'no loc'
E000701

BM(NHM).1988.343; Female; 'Cornville Oregon, USA'
NMW Image No. E000700

Draeculacephala crassicornis Van Duzee 1915b: 181

Membracoidea : Cicadellidae

Boreal Sharpshooter

Diseases Transmitted
Blueberry leaf mottle virus Nepovirus Virus

Distribution Map
(simplified continental distribution)
Geographical Distribution:
North America

Recorded Distribution(s):
United States, Canada

Draeculacephala crassicornis Van Duzee 1915b: 181
Diseases Transmitted Pathogen Type
Blueberry leaf mottle virus Nepovirus Virus
Crops Affected by Draeculacephala crassicornis Van Duzee 1915b: 181
Rice Citrus Carrot
Barley Apple Tomato
Maize (Corn) Pear Potato
Sugarcane Elm Strawberry
Wheat Palms Rubus
Sorghum Grapevine Papaya
Other (grasses/cereals) Ornamentals Peach

This species is a vector of Pierce’s disease virus of grape in California. Transmission of the virus by this species was first reported by Freitag et al. in 1952 (287). Leafhoppers fed on diseased plants from 1 to 2 days and on test plants from 2 to 10 days. It was an efficient vector, having infected 56 percent of the test plants. However, in 1954 Freitag and Frazier (286) found that it was not naturally infective after testing 610 specimens from Humboldt and Nevada Counties in California.
(Nielson 1968)

The species is not considered an important vector of Pierce’s disease virus.


(Nielson 1968)

Identification Plates
Draeculacephala crassicornis


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Plate 1
Species Description

Length:
Large, slender species. male 6.50—7.10 mm female 7.50—8.30 mm.

Colour:
General color green. Crown green with fuscous areas on each side of middle; pronotum light green along anterior margin, dark green apically; elytra dark green with reticulations along apex, veins ivory or yellowish white.

Genitalia:
Pygofer in lateral aspect about twice as long as wide, dorsal margin slightly concave, caudal margin narrowly convex; aedeagus in lateral aspect broad, with distinct broad dorsal tooth, shaft very broad, subquadrate in ventral aspect; paraphyses symmetrical with two pairs of processes, terminal pair twice as long as basal pair; style in dorsal aspect with distal half curved laterally and attenuated; female seventh sternum in ventral aspect with caudal margin slightly convex.

Species Diagnosis

This species is similar to noveboracensis in general habitus and can be separated by the aedeagus with the shaft broadly subquadrate in ventral aspect.

(Nielson 1968)

Ecology

Host Plant Activity Period (Months) Dormancy Generations
- -
Eggs -
Nymphs -
Adult -
One per year -
Continuous -
Variable -
Draeculacephala crassicornis Van Duzee 1915b: 181

Higher taxonomy

Kingdom Phylum Class Order Superfamily Family
Animalia Arthropoda Insecta Hemiptera
Suborder: Auchenorrhyncha
Infraorder: Cicadamorpha
Membracoidea Cicadellidae
Subfamily: Cicadellinae
Draeculacephala crassicornis Van Duzee 1915b: 181
References
Nielson, M. W. 1968b. The leafhopper vectors of phytopathogenic viruses (Homoptera, Cicadellidae). Taxonomy, biology and virus transmission. United States Department of Agriculture Technical Bulletin . 1382 386 pp.
Record last updated - 22/10/2010