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Species Account


NMW.Z.2009.014; 'UK: England Herefordshire VC 36 Moccas Park SO 341425'; Coll.: R. Muhlethaler; Date: 23.vii.2008
i14877

NMW.Z.2009.014; Female; 'UK: England Herefordshire VC 36 Moccas Park SO 341425'; Coll.: R. Muhlethaler; Date: 23.vii.2008
i14878

NMW.Z.2009.014; Male; 'UK: England Herefordshire VC 36 Moccas Park SO 341425'; Coll.: R. Muhlethaler; Date: 23.vii.2008
i14879

NMW.Z.2009.014; 'UK: England Herefordshire VC 36 Moccas Park SO 341425'; Coll.: R. Muhlethaler; Date: 23.vii.2008
NMW Image No. i14877

Macrosteles sexnotatus (Fallén 1806a: 34 )

Membracoidea : Cicadellidae
Diseases Transmitted

Described as Cicada 6-notata Fallen.
(Wilson & Claridge 1991)

Distribution Map
(simplified continental distribution)
Geographical Distribution:
Europe

Recorded Distribution(s):
Widely distributed and common in the western Palaearctic.

It is widespread in Europe and Asia. Records of this species in the United States were erroneous (Beirne 1952 [54]). Because of the voluminous records reporting the widespread dis¬tribution of this species, no attempt will be made here to record the various localities. Possibly many of the records actually re¬ferred to other species of Macrosteles, and until a thorough study of the taxonomy and biology has been made on the Palearctic fauna it seems best to retain a status quo position for the present. (Nielson, 1968)

Macrosteles sexnotatus (Fallén 1806a: 34 )
Diseases Transmitted Pathogen Type
Crops Affected by Macrosteles sexnotatus (Fallén 1806a: 34 )
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 European aster yellows virus. It has been reported as a suspect vector of sugarbeet mosaic by Muraviov (539) and Novinenko (572), but this has not been confirmed. Posnette and Ellenberger (623) were first to report this species as a vector of delphinium yellows in England, Only 1 white clover plant out of 10 was infected with the virus. The authors reported that the species was probably an efficient vector of this virus as evidenced by the spread in the field.
(Nielson 1968)

This species is not considered an important vector in the natural spread of delphinium yellows in England.
(Nielson 1968)

Identification Plates
Macrosteles sexnotatus
Macrosteles sexnotatus


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Plate 1Plate 2
Species Description

Length:
Small, slender species. male 2.90—3.30 mm., female 3.40—3.50 mm.

Abdomen:
Male abdomen.: 2nd acrotergite with trunk widely V-shaped, broad triangularly produced ventrally; neck slender, shorter than half of trunk width. 2nd tergal apodeme reaching to near 2/3 of tergite posteriorly. 1st sternal apodeme with anterior lobes small, more or less truncate; posterior lobes slightly longer than wide, inclined in lateral aspect. 2nd sternal apodeme with posterior lobes short, about as long as or slightly longer than basal width.

Colour:
General colouration yellow to yellowish green, sometimes with dark. markings enlarged on body, with. faint smoky tint on fore wings. vertex gently rounded anteriorly in male, rather deeply rounded in female; spot pattern often isolated or sometimes largely confluent. Frontoclypeus with dark transverse bands isolated, sometimes confluent or reduced partly. Anteclypeus parallel-sided in male, broader basally in female. Scutellum usually with basal spots.

Genitalia:
Male abdomen.: 2nd acrotergite with trunk widely V-shaped, broad triangularly produced ventrally; neck slender, shorter than half of trunk width. 2nd tergal apodeme reaching to near 2/3 of tergite posteriorly. 1st sternal apodeme with anterior lobes small, more or less truncate; posterior lobes slightly longer than wide, inclined in lateral aspect. 2nd sternal apodeme with posterior lobes short, about as long as or slightly longer than basal width.
Male genitalia: Subgenital plates with 7-9 macrosetae about as long as apophysis of style, or slightly longer distally; apical processes roughly as long as commissure of plates. Aedeagal shaft gently narrowed distally, with microspines laterally and
ventrally; lateral flanges absent; apical processes divergent
distally in posterior aspect, meandered and curved anteriorly in lateral aspect, with proximal meandered part apparently shorter than distal part.

Species Diagnosis

This species is similar to laevis in male genital characteristics and can be distinguished by the triple bend of the aedeagus in lateral aspect.

(Nielson 1968)

Ecology

Host Plant Activity Period (Months) Dormancy Generations
- -
Eggs -
Nymphs -
Adult -
One per year -
Continuous -
Variable -
Macrosteles sexnotatus (Fallén 1806a: 34 )

Higher taxonomy

Kingdom Phylum Class Order Superfamily Family
Animalia Arthropoda Insecta Hemiptera
Suborder: Auchenorrhyncha
Infraorder: Cicadamorpha
Membracoidea Cicadellidae
Subfamily: Deltocephalinae
Macrosteles sexnotatus (Fallén 1806a: 34 )
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