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Species Account



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Nesoclutha pallida (Evans 1941f: 147 )

Membracoidea : Cicadellidae
Diseases Transmitted
maize wallaby ear disease 16Sr Phytoplasma

Distribution Map
(simplified continental distribution)
Geographical Distribution:
Australasia & Oceania

Recorded Distribution(s):
Restricted to Australia. Evans (1947) described the species from Melbourne. It has been collected over extensive areas of New South Wales and Queensland and is apparently widespread in the Eastern States of Australia (Grylls 1963). (Nielson, 1968)

Nesoclutha pallida (Evans 1941f: 147 )
Diseases Transmitted Pathogen Type
maize wallaby ear disease 16Sr Phytoplasma
Crops Affected by Nesoclutha pallida (Evans 1941f: 147 )
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 striate mosaic virus of grasses and cereals in Australia. Grylls (327) was first to report this species as a vector of this virus in 1963. Transmission was effected to eight varieties of wheat, three of oats, and two of barley. Three species of grasses (Chloris gayana Kunth, Ixophorus unisetus (Presl) Schlecht., Dactylis glomerata L.) and (Zea mays L.) were experimentally infected. The minimum total incubation period in the vector and host plant (C. gayana) was about 8 days. The virus was more efficiently transmitted from plant to plant of the same species than from plant to plant of different species. The virus was transmitted by nymphs as well as adults. The percentage of leafhoppers as vectors was 60. Attempts to pass the virus transovarially proved negative.
(Nielson 1968)

This species has potential as an important vector in the natural spread of the virus in commercial crops of grain. At present it does not cause extensive losses owing to lack of populations during the most susceptible stage of plant growth. Populations of leafhoppers were greatest when the grain was almost mature. The species has greater importance in the spread of virus to grasses in pasture lands and rangelands.
(Nielson 1968)

Identification Plates
Nesoclutha pallida


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Plate 1
Species Description

Length:
Small, linear species. male 3.10—3.60 mm., female 3.20—3.60 mm.

Genitalia:
Pygofer in lateral aspect slightly longer than wide, caudoventral margin produced posteriorly to small fingerlike lobe; aedeagus in lateral aspect simple, broad basally, attenuated apically to narrow sharp point, tubelike in ventral aspect; gonopore large, terminal, arising from ventral surface of shaft; style in dorsal aspect simple, apex narrowed, curved laterally; female seventh sternum with caudal margin nearly truncate.

Species Diagnosis

This is the only reported species in the genus Nesoclutha that is a vector.
(Nielson 1968)

Ecology

Host Plant Activity Period (Months) Dormancy Generations
- -
Eggs -
Nymphs -
Adult -
One per year -
Continuous -
Variable -
Nesoclutha pallida (Evans 1941f: 147 )

Higher taxonomy

Kingdom Phylum Class Order Superfamily Family
Animalia Arthropoda Insecta Hemiptera
Suborder: Auchenorrhyncha
Infraorder: Cicadamorpha
Membracoidea Cicadellidae
Subfamily: Deltocephalinae
Nesoclutha pallida (Evans 1941f: 147 )
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 - 25/09/2019