''Oncopsis flavicollis'' is a species of leafhoppers belonging to the family Cicadellidae subfamily

Eurymelinae Eurymelinae is a subfamily of leafhoppers in the family Cicadellidae. Selected genera * ''Barolineocerus'' Freytag, 2008 * ''Eurymela'' Lepeletier & Serville, 1825 * '' Eurymelessa'' Evans, 1933 * '' Eurymelita'' Evans, 1933 * '' Eurymeloides ...

Description

''Oncopsis flavicollis'' can reach a length of about . It is a sexual dimorph species. Males show dark markings on the face with round spots. Females are very variable, with different colour forms. Usually they are bright-yellow on the upper part of the face, on the forebody and on the base of the wings, while the remaining part of the wings are chestnut brown. Adult can be found in forest environment from May to September. These leafhoppers feeds on

birch A birch is a thin-leaved deciduous hardwood tree of the genus ''Betula'' (), in the family Betulaceae, which also includes alders, hazels, and hornbeams. It is closely related to the beech-oak family Fagaceae. The genus ''Betula'' contains 30 ...

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Betula pendula ''Betula pendula'', commonly known as silver birch, warty birch, European white birch, or East Asian white birch, is a species of tree in the family Betulaceae, native to Europe and parts of Asia, though in southern Europe, it is only found a ...

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Betula pubescens ''Betula pubescens'' (syn. ''Betula alba''), commonly known as downy birch and also as moor birch, white birch, European white birch or hairy birch, is a species of deciduous tree, native and abundant throughout northern Europe and northern Asia ...

'').M. F. Claridge and G. A. Nixo
Oncopsis flavicollis (L.) associated with tree birches (Betula): a complex of biological species or a host plant utilization polymorphism?
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Distribution

This species can be found in most of Europe, in the Near East, in North Africa and in the eastern

Palearctic realm The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Sibe ...

.Catalogue of Life
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References

* M. F. Claridge and W. J. Reynold
Male courtship songs and sibling species in the Oncopsis flavicollis species group (Hemiptera: Cicadellidae)
Hemiptera of Europe Insects of North Africa Insects described in 1761 Taxa named by Carl Linnaeus Eurymelinae {{Cicadellidae-stub