Print
Species Account


USNM; Male; 'Glenn Oakes'; Coll.: E D Ball; Date: 7-18-29
i14243

USNM; Male; 'Glenn Oakes'; Coll.: E D Ball; Date: 7-18-29
NMW Image No. i14243

Osbornellus borealis DeLong & Bohr 1936a: 976

Membracoidea : Cicadellidae
Diseases Transmitted
Western X-disease phytoplasma 16SrIII-A Phytoplasma

Distribution Map
(simplified continental distribution)
Geographical Distribution:
North America

Recorded Distribution(s):
It is known only in the Western United States and western Canada. It has been reported from Washington by Wolfe in 1955 (866), Utah by Nielson and Kaloostian in 1956 (568), southern British Columbia, southern Alberta, and southern Saskatchewan by Beirne in 1956 (58), and California by Jensen in 1957 (396). (Nielson, 1968)

Osbornellus borealis DeLong & Bohr 1936a: 976
Diseases Transmitted Pathogen Type
Western X-disease phytoplasma 16SrIII-A Phytoplasma
Crops Affected by Osbornellus borealis DeLong & Bohr 1936a: 976
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 yellow leaf roll strain of western X-disease virus of peach in California. Jensen (396) was first to report transmission by this species in 1957. Infections were produced from diseased peach to seven of nine healthy celery plants and one of four healthy peach trees. The insect spent 45 days on the inoculum. Celery was much more susceptible to the virus than peach.
(Nielson 1968)

This species is not considered an important vector of this strain of the virus.
(Nielson 1968)

Identification Plates
Osbornellus borealis


Under Development


Under Development


Under Development


Under Development


Under Development


Under Development


Under Development


Under Development


Under Development

Plate 1
Species Description

Length:
Medium size, slender species. Length of male 4.40—5.00 mm., female 5.00—5.60 mm.

Colour:
General color yellowish brown. Crown and pronotum with yellow and brown markings; elytra subhyaline with veins suffused with yellow brown, few cells ivory.

Genitalia:
Pygofer in lateral aspect about as long as wide, caudal margin obliquely convex; aedeagus in lateral aspect with two basal processes extending laterally along shaft and protruding beyond apex of shaft; aedeagal shaft narrow, tubelike, slightly attenuated apically; gonopore subterminal; style in dorsal aspect with apices long, narrow; female seventh sternum in ventral aspect with caudal margin truncate.

Species Diagnosis

This is the only species in the genus Osbornellus that is a vector of a plant virus.

(Nielson 1968)

Ecology

Host Plant Activity Period (Months) Dormancy Generations
- -
Eggs -
Nymphs -
Adult -
One per year -
Continuous -
Variable -
Osbornellus borealis DeLong & Bohr 1936a: 976

Higher taxonomy

Kingdom Phylum Class Order Superfamily Family
Animalia Arthropoda Insecta Hemiptera
Suborder: Auchenorrhyncha
Infraorder: Cicadamorpha
Membracoidea Cicadellidae
Subfamily: Deltocephalinae
Osbornellus borealis DeLong & Bohr 1936a: 976
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 - 12/09/2019