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Species Account


NMW.Z.1996.005.33758; Female; 'Blackheath'; Date: 9.65
i14918

NMW.Z.1996.005.33758; Female; 'Blackheath'; Date: 9.65
i14919

NMW.Z.1996.005.33758; Female; 'Blackheath'; Date: 9.65
NMW Image No. i14918

Macropsis scotti Edwards

Membracoidea : Cicadellidae
Diseases Transmitted
Rubus stunt disease 16Sr Phytoplasma

Distribution Map
(simplified continental distribution)
Geographical Distribution:

Recorded Distribution(s):
This species is known only from Europe. In 1964, Wagner (844) recorded it from western Europe, England, the Netherlands, southern Germany, Portugal, Switzerland, and Mo¬rocco. (Nielson, 1968)

Macropsis scotti Edwards
Diseases Transmitted Pathogen Type
Rubus stunt disease 16Sr Phytoplasma
Crops Affected by Macropsis scotti Edwards
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 rubus stunt virus in England. It is a suspect vector of the same virus in the Netherlands. It was first reported as a vector of this virus in 1961 by the East Mailing Research Station (228). Transmission was effected to blackberry only.
(Nielson 1968)

This species is considered an important vector in the transmission of rubus stunt virus from blackberry to blackberry.
(Nielson 1968)

Identification Plates
Macropsis scotti


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Plate 1
Species Description

Length:
Medium size, robust species. male 4.30—4.50 mm., female 5.00—5.10 mm.

Colour:
General colour dark brown. Crown light brown with two large black spots on anterior margin; pronotum light brown with dark brown irregular patches or markings; elytra translucent, veins dark brown to black.
.

Genitalia:
Pygofer in lateral aspect about as long as wide, caudoventral margin with distinct, long spine projecting dorsad to dorsal margin of pygofer (type); aedeagus in lateral aspect broad basally, tubebike, curved laterally, attenuated apicably; gonopore subapical; style in dorsal aspect long and slender, apical two-thirds tube-like, apex curved laterally; female seventh sternum in ventral aspect with lateral margins converging to form broad, angulate, convex caudal margin.

Species Diagnosis

This species is closely related to fuscula and is difficult to separate from it on the basis of the male genitalia. In 1964, Wagner (844) distinguished the species by the shape of the lorum. In scotti it is very narrow and elongate. There is considerable color variation among populations within species, and although Wagner illustrated color forms, there appeared to be some overlapping between species.

(Nielson 1968)

Ecology

Host Plant Activity Period (Months) Dormancy Generations
- -
Eggs -
Nymphs -
Adult -
One per year -
Continuous -
Variable -
Macropsis scotti Edwards

Higher taxonomy

Kingdom Phylum Class Order Superfamily Family
Animalia Arthropoda Insecta Hemiptera
Suborder: Auchenorrhyncha
Infraorder: Cicadamorpha
Membracoidea Cicadellidae
Subfamily: Macropsinae
Macropsis scotti Edwards
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 - 12/09/2019