Euscelidius variegatus (Kirschbaum 1858a: 9 )Membracoidea : Cicadellidae
|Diseases Transmitted||Pathogen Type|
|Western X-disease phytoplasma 16SrIII-A||Phytoplasma|
|Crops Affected by Euscelidius variegatus (Kirschbaum 1858a: 9 )|
This species is a vector of the western strain of North American aster yellows virus. In 1947, Severin (701) was first to report transmission by this species under the name “Euscelis maculipennis DeLong and Davidson.” A high percentage of transmission from diseased celery to healthy celery was effected. About 78 percent of males and 76 percent of females transmitted the virus. No transmissions were effected from diseased celery to healthy aster. Males retained the virus from 2 to 59 days and females from 3 to 13 days. The species failed to transmit curly top virus of sugarbeets and Pierce’s disease virus of grape.
This species is not considered an important vector in the natural spread of this virus. It should be investigated as a possible vector of European aster yellows.
Medium size, robust species. male 3.90—4.50 mm., female 4.10—5.50 mm.
General colour light brown to black with numerous fuscous markings on body. Crown tan with black markings; pronotum tan with numerous somewhat transverse black markings; scutellum with black markings; elytra with numerous black spots bordering cells, veins whitish tan.
Pygofer in lateral aspect nearly twice as long as wide, caudoventral margin produced posteriorly to long, curved, fingerlike lobe; aedeagus in lateral aspect curved, narrow, tubelike, slightly attenuated apically with tiny hooked process at apex, process bifurcate; gonopore subterminal; style in dorsal aspect simple, apex narrowed, small spines on lateral margin of apices; female seventh sternum in ventral aspect with caudal margin concave at middle, small spatulate process arising from base of concavity.
is the only species in the genus
Euscelidius that is a vector.
|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.|