Austroagallia torrida (Evans)Membracoidea : Cicadellidae
|Diseases Transmitted||Pathogen Type|
|Crops Affected by Austroagallia torrida (Evans)|
This species is a vector of rugose leaf curl virus of clover in Australia. Transmission of this virus was first reported in 1954 by Grylls (325), who demonstrated transmission to a number of plants including lucerne, clover, tomato, and carrots. The vector required over 30 minutes of feeding on diseased plants before transmission was accomplished. Transovarial passage of the virus was also established. In 1955, Grylls (326) reported an outbreak of this disease, in which 10 to 12 percent of red clover and some white clover plants were infected in one pasture, whereas in another field the disease was much more severe. Populations of torrida were found in the diseased fields.
This species is an important vector in the natural spread of rugose leaf curl virus in Australia.
Small linear species. male 3.40—3.50 mm., female 3.50—3.90 mm.
General colour light brown. Vertex with two distinct black spots; pronotum with four black spots, two smaller ones near anterior margin and two larger ones near posterior margin, distance between posterior spots greater than distance between anterior spots; elytra uniformly light brown.
Pygofer in lateral aspect about as long as wide, caudodorsal margin produced posteriorly to short angulate lobe; 10th segment with pair of small plates, each plate with elongate curved process distally; aedeagus in lateral aspect broad basally, narrowed and somewhat attenuated apically, shaft short with single distinct, broad spine arising laterally from middle of dorsal margin of shaft; gonopore terminal; style in dorsal aspect with apex bilobed, lobes about equal in length, curved; female 7th sternum in ventral aspect with caudal margin truncate.
is the only species in the genus
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.|