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Species Account



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Macrosteles cristata (Ribaut 1927a: 164 )

Membracoidea : Cicadellidae
Diseases Transmitted
Clover dwarf 16SrIII-B Phytoplasma

Distribution Map
(simplified continental distribution)
Geographical Distribution:

Recorded Distribution(s):
This species is common in many countries of Europe and was recently recorded from the United States by Beirne in 1952 (54). In 1952, Ribaut (643) reported it from Gascony, Sweden, Finland, Switzerland, Germany, Norway, Czechoslovakia, Bur¬gundy, Alsace, and Italy. In the United States it was found in Wisconsin, Maryland, Illinois, Kansas, New York, Arizona, Geor¬gia, Texas, and Wyoming. (Nielson, 1968)

Macrosteles cristata (Ribaut 1927a: 164 )
Diseases Transmitted Pathogen Type
Clover dwarf 16SrIII-B Phytoplasma
Crops Affected by Macrosteles cristata (Ribaut 1927a: 164 )
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 stolbur virus of tomato in Czechoslovakia and clover phyllody virus in the Netherlands. It was first reported as a vector of stolbur virus by Blattñy et al. (95) in 1954 and phyllody virus by Evenhuis (244) in 1958. No confirmation has been reported nor are details of transmission experiments presently available.
(Nielson 1968)

This species is not considered an important vector of these viruses.


(Nielson 1968)

Identification Plates
Macrosteles cristata


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Plate 1
Species Description

Length:
Small, linear species. Length of male 3.20—3.80 mm., female 4.00—4.20 mm.

Abdomen:
Male abdomen: 2nd acrotergite with trunk horizontal, broad triangularly produced ventrally: anterior processes stout and large, slightly shorter than half of trunk width: neck about half as long as trunk width. 2nd tergal apodeme with anterior lobes short, not produced; posterior lobes reaching middle of tergite posteriorly. 1st sternal apodeme with posterior lobes about as long as wide, more or less convergent distally. 2nd sternal apodeme with posterior lobes triangularly reduced.

Colour:
General color yellow. Crown with three rows of black spots on each side of middle; pronotum yellow; scutellum with two spots on anterior margin; elytra light yellow.
.

Genitalia:
Pygofer in lateral aspect slightly longer than wide, caudal margin obliquely truncate, caudoventral margin with small lobe; aedeagus in lateral aspect narrow, tubelike, attenuated apically with two distinct terminal processes that are nearly as long as shaft, large expanded flange on dorsal surface of shaft, lateral margins of flange serrate, terminal processes of aedeagal shaft divergent in ventral aspect; gonopore terminal; style in dorsal aspect Simple, apex narrowed; female seventh sternum in ventral aspect with caudal margin truncate (fig. 56).

Species Diagnosis

From viridigriseus, to which, it is similar in genital characteristics, cristata can be separated by the shaft of the aedeagus with elongate, bulbous flange on the dorsal surface in lateral aspect and serrate margins throughout its length in ventral aspect.

(Nielson 1968)

Ecology

Host Plant Activity Period (Months) Dormancy Generations
- -
Eggs -
Nymphs -
Adult -
One per year -
Continuous -
Variable -
Macrosteles cristata (Ribaut 1927a: 164 )

Higher taxonomy

Kingdom Phylum Class Order Superfamily Family
Animalia Arthropoda Insecta Hemiptera
Suborder: Auchenorrhyncha
Infraorder: Cicadamorpha
Membracoidea Cicadellidae
Subfamily: Deltocephalinae
Macrosteles cristata (Ribaut 1927a: 164 )
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