
''Oncometopia'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
of
sharpshooter
A sharpshooter is one who is highly proficient at firing firearms or other projectile weapons accurately. Military units composed of sharpshooters were important factors in 19th-century combat. Along with " marksman" and "expert", "sharpshooter" ...
s found in North and South America. The genus was erected by
Carl Stål
Carl Stål (21 March 1833 – 13 June 1878) was a Swedish entomologist specialising in Hemiptera.
He was born at Karlberg Castle, Stockholm on 21 March 1833 and died at Frösundavik near Stockholm on 13 June 1878. He was the son of architect, au ...
in 1869.
Description
''Oncometopia'' range from 9.4 mm to 15.0 mm in length.
The head is moderately produced with a median length almost always less than the interocular width. The anterior margin of the head is rounded dorsally and the crown is rounded to the face without a carina in between. The
ocelli
A simple eye (sometimes called a pigment pit) refers to a form of eye or an optical arrangement composed of a single lens and without an elaborate retina such as occurs in most vertebrates. In this sense "simple eye" is distinct from a multi-le ...
are each roughly equidistant from the median line of the crown and the adjacent anterior eye angle (alternatively, they may be slightly closer to the latter). The disc usually has short sparse pubescence (hairs). The
antennal
Antennae ( antenna), sometimes referred to as "feelers", are paired appendages used for sensing in arthropods.
Antennae are connected to the first one or two segments of the arthropod head. They vary widely in form but are always made of one o ...
ledges each have longitudinal fovea and are carinate dorsally, and the anterior margins are oblique. The
clypeus is strongly convex (except in female ''O. fuscipennis'') and its dorsomedial surface is coarsely granular.
The
thorax
The thorax or chest is a part of the anatomy of humans, mammals, and other tetrapod animals located between the neck and the abdomen. In insects, crustaceans, and the extinct trilobites, the thorax is one of the three main divisions of the ...
has the
pronotal disc punctate and usually rugose. The proepimeron is wider than long. The posterior portion of the
scutellum is almost always without transverse striae.
The forewing is coriaceous (leathery) and has an apical membrane. The veins are distinct. The surface is often punctate. The claval veins are parallel, approximate, contiguous or fused near their midlength. The hindwing generally resembles that of the related genus ''
Phera
'' Phera'' (English language:''The Return'') is a 1988 Bengali drama film directed by Buddhadeb Dasgupta based on a story of Bengali novelist Narendranath Mitra. It was entered into the 38th Berlin International Film Festival, competition ...
''.
The tibiae of the forelegs are not or only slightly dilated apically. The hindlegs have the first tarsomeres varying from shorter than to longer than the combined length of second and third tarsomeres.
Selected species
*
''Oncometopia facialis''
*''
Oncometopia hamiltoni
''Oncometopia'' is a genus of sharpshooters found in North and South America. The genus was erected by Carl Stål in 1869.
Description
''Oncometopia'' range from 9.4 mm to 15.0 mm in length.
The head is moderately produced with a median lengt ...
''
*''
Oncometopia alpha''
*''
Oncometopia clarior''
*''
Oncometopia nigricans
''Oncometopia'' is a genus of sharpshooters found in North and South America. The genus was erected by Carl Stål in 1869.
Description
''Oncometopia'' range from 9.4 mm to 15.0 mm in length.
The head is moderately produced with a median lengt ...
''
*''
Oncometopia orbona
''Oncometopia orbona'', the broad-headed sharpshooter, is a species of sharpshooter
A sharpshooter is one who is highly proficient at firing firearms or other projectile weapons accurately. Military units composed of sharpshooters were import ...
'' - broad-headed sharpshooter
Economic importance
The species ''O. orbona'' is one of the two primary natural vectors of
''Xylella fastidiosa'' subsp. ''multiplex'', which causes
phony peach disease. Similarly, ''O. facialis'' is a vector of ''X. fastidiosa'' subsp. ''pauca'', which causes
citrus variegated chlorosis
''Xylella fastidiosa'' is an aerobic, Gram-negative bacterium of the genus ''Xylella''. It is a plant pathogen, that grows in the water transport tissues of plants (xylem vessels) and is transmitted exclusively by xylem sap-feeding insects such a ...
.
References
Further reading
*
{{Taxonbar, from=Q285134
Cicadellidae genera
Hemiptera of North America
Insects of South America
Taxa named by Carl Stål
Proconiini