Graphocephala confluens (Uhler 1861b: 285)Membracoidea : Cicadellidae
|Diseases Transmitted||Pathogen Type|
|Western X-disease phytoplasma 16SrIII-A||Phytoplasma|
|Crops Affected by Graphocephala confluens (Uhler 1861b: 285)|
This species is a vector of western X-disease virus of peach. Anthon and Wolfe (8) first reported in 1951 transmission of this virus from peach to peach by adults. Since the vector is primarily a xylem feeder and the virus is largely present in the phloem, transmission was difficult to obtain. Transmission of the virus by nymphs was negative (Wolfe 1955 ).
This species is not considered an important Vector of western X-disease virus of peach.
Medium size, slightly robust species. Length of male 5.80—6.40 mm., female 6.40—6.60 mm.
General color brown. Crown light brown with dark markings; pronotum brown with dark patches posteriorly; elytra brown.
Pygofer in lateral aspect nearly twice as long as wide, caucial margin triangularly convex; aedeagus in lateral aspect with shaft short, broad, asymmetrical; aedeagal processes broad, triangulate distally; paraphyses asymmetrical; style in dorsal aspect simple, distal half elongate, curved laterally at apex; female seventh sternum in ventral aspect with caudal margin distinctly convex.
This species is closely related to
and is difficult to separate on the basis of the male genitalia. The aedeagus of
in lateral aspect has a broader shaft and the apex of the style is curved laterally in dorsal aspect.
|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.|