Draeculacephala noveboracensis (Fitch 1851a: 56)Membracoidea : Cicadellidae
|Diseases Transmitted||Pathogen Type|
|Crops Affected by Draeculacephala noveboracensis (Fitch 1851a: 56)|
This species is a vector of Pierce’s disease virus of grape in California. In 1952, Freitag et al. (287) were first to report this species as a vector of this virus. Leafhoppers fed on diseased plants from 1 to 2 days and on test plants from 2 to 10 days. It was not an efficient vector, having infected only 20 percent of the test plants. Studies on natural infectivity of the vector by Freitag and Frazier in 1954 (286) showed that over 1,100 test specimens failed to transmit the virus.
This species is not considered an important vector of this virus.
Large, slightly robust species. male 7.20—7.40 mm., female 7.50—8.50 mm.
General colour green. Crown green with dark spot on either side of apex and spots on anterior margin next to eye; pronotum and scutellum light green; elytra sometimes dark green, weakly reticulated apically, veins light green.
Pygofer in lateral aspect about 214 times as long as wide, dorsal margin distinctly concave, caudal margin broadly convex; aedeagus in lateral aspect somewhat recurved, broad medially with pair of broad lateral processes, shaft constricted subapically in ventral aspect; paraphyses symmetrical with two pairs of processes, terminal pair curved and nearly twice as long as basal pair; style in dorsal aspect with apical half sharply attenuated; female seventh sternum in ventral aspect with distinct spatulate process on middle of caudalmargin.
This species is related to
in general habitus and can be distinguished by the aedeagus with shaft constricted subapically and slightly expanded laterally at apex in ventral 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.|