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Species Account


NMW.Z.1993.001.26912; Male; 'Culver Down Isle of Wight'; Coll.: W. J. Le Quesne; Date: 20.6.65
i14851

NMW.Z.1993.001.26912; Male; 'Culver Down Isle of Wight'; Coll.: W. J. Le Quesne; Date: 20.6.65
i14852

NMW.Z.1993.001.26911; Female; 'Culver Down Isle of Wight'; Coll.: W. J. Le Quesne; Date: 4.7.68
i14853

NMW.Z.1993.001.26912; Male; 'Culver Down Isle of Wight'; Coll.: W. J. Le Quesne; Date: 20.6.65
NMW Image No. i14851

Euscelis lineolatus Brullé 1832a: 109

Membracoidea : Cicadellidae
Diseases Transmitted
Green petal disease 16SrI-C Phytoplasma

Distribution Map
(simplified continental distribution)
Geographical Distribution:
Europe

Recorded Distribution(s):
This species is common in Europe. In 1957, Muller (534) recorded it from countries predominantly in western Europe. It has been reported from Russia and the Mediterranean subregion, but these records may actually refer to other species of Euscelis. (Nielson, 1968)

Euscelis lineolatus Brullé 1832a: 109
Diseases Transmitted Pathogen Type
Green petal disease 16SrI-C Phytoplasma
Crops Affected by Euscelis lineolatus Brullé 1832a: 109
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 the clover phyllody virus causing green petal in strawberry and clover witches’ broom virus of clover in England. In 1956, Frazier and Posnette (276) were first to report transmission of these viruses and later in 1957 they (277) presented details of their experiments. Colonies of uneolata including variants transmitted clover phyllody virus from clover and strawberry to clover and numerous other plants, but not from strawberry to strawberry. Witches’ broom virus was transmitted to carrot, celery, mayweed, plantain, potato, and tomato plants. The latent period of both viruses in the insect varied from 23 to 45 days. Phyllody virus was retained by the vector for 58 days and witches’ broom virus for 84 days.
(Nielson 1968)

This species is considered an important vector of these viruses in England.


(Nielson 1968)

Identification Plates
Euscelis lineolatus


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Plate 1
Species Description

Length:
Small, robust species. Males macropterous, females submacropterous. Length of male 3.40—3.90 mm., female 4.70 mm.

Colour:
General color light brown. Crown and pronotum light brown with dark spots or markings; elytra finely reticulated with light-brown markings.

Genitalia:
Pygofer in lateral aspect about 1½ times as long as wide, caudoventral margin produced posteriorly to narrow, fingerlike lobe, which projects posterodorsally; aedeagus in lateral aspect very broad basally, narrow, and attenuated at apical three-fourths; shaft broad in ventral aspect; gonopore subterminal; style in dorsal aspect simple, apex narrowed; female seventh sternum in ventral aspect with caudal margin distinctly truncate (fig. 88).

Species Diagnosis

This species is closely related to plebeja and can be separated by the male pygofer with the caudoventral margin produced posterodorsally to a broad fingerlike lobe. Typical lineolata does not have the paired short spines on the apex of the aedeagal shaft whereas typical plebeja does.In 1957 and 1958, Muller (534, 535) produced some remarkable results showing the variation of aedeagal types among species of Euseelis that were affected by day length. As a consequence of this work, Muller concluded that bilobata, stictoptera, and galiberti were seasonal variants of Uneolata. Both bilobata and lineolata types of aedeagus were produced under day lengths of less than 16 hours whereas stictoptera and galiberti forms were produced under day lengths of more than 16 hours.
(Nielson 1968)

Ecology

Host Plant Activity Period (Months) Dormancy Generations
- -
Eggs -
Nymphs -
Adult -
One per year -
Continuous -
Variable -
Euscelis lineolatus Brullé 1832a: 109

Higher taxonomy

Kingdom Phylum Class Order Superfamily Family
Animalia Arthropoda Insecta Hemiptera
Suborder: Auchenorrhyncha
Infraorder: Cicadamorpha
Membracoidea Cicadellidae
Subfamily: Deltocephalinae
Euscelis lineolatus Brullé 1832a: 109
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