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Species Account


USNM; Female; 'Presidio Riv- Sivaloa. Mex.'; Date: sept 26 1918
i14276

USNM; Male; 'Patagonia ARIZ.'; Coll.: Oman; Date: June 24 1933
i14277

USNM; Male; 'Patagonia ARIZ.'; Coll.: Oman; Date: June 24 1933
i14278

USNM; Female; 'Presidio Riv- Sivaloa. Mex.'; Date: sept 26 1918
NMW Image No. i14276

Texananus spatulatus (van Duzee 1892a: 126 )

Membracoidea : Cicadellidae
Diseases Transmitted

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

Recorded Distribution(s):
It is widely distributed in the Western United States and extends into Mexico and the West Indies. In 1945 DeLong and Severin (192) reported it from California, Colorado, Kansas, Texas, and Mexico. In addition to these localities, Crowder in 1952 (149) examined specimens from Montana, Utah, Nevada, New Mexico, Arizona, and Oklahoma and stated that the desert forms were smaller and paler than mountain or plains forms. Linnavouri in 1959 (461) recorded it from Cuba. (Nielson, 1968)

Texananus spatulatus (van Duzee 1892a: 126 )
Diseases Transmitted Pathogen Type
Crops Affected by Texananus spatulatus (van Duzee 1892a: 126 )
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 western strain of North American aster yellows virus. It was first reported as a vector in 1945 by Severin (696), who demonstrated a series of experimental transmissions of the virus by adults as well as third-and fourth-instar nymphs from diseased celery to healthy celery. Single male and female leafhoppers after feeding on diseased celery transmitted to 34 of 100 and 29 of 100 healthy plants, respectively. Varying numbers of individuals also transmitted the virus from 29 to 88 percent of the plants. In transmission studies using aster only a small percentage of infections resulted either to or from aster. The minimum latent period of the virus in the insect feeding on celery was 6 days and maximum 35 days. Males retained the virus for 84 days and females 99 days. Attempts to transmit curly top virus of sugarbeets and Pierce’s disease virus of grape were not successful.


(Nielson 1968)

This species has potential importance as a vector of this virus owing to its ability to retain the virus for long periods and to transmit it to a high percentage of celery plants.


(Nielson 1968)

Identification Plates
Texananus spatulatus


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Plate 1
Species Description

Length:
Medium size, robust species. male 6.30—6.70 mm., female 7.20—7.60 mm.

Colour:
General colour light brown with numerous reticulations on body. Crown and pronotum tan, suffused with light-brown reticulations; elytra tan or ivory with numerous brown reticulations.
.

Genitalia:
Pygofer in lateral aspect about 1½ times as long as wide, caudal margin truncate; aedeagus in lateral aspect broad basally, attenuated apically; gonopore terminal; connective with paired apical processes extending beyond apex of aedeagal shaft; style in dorsal aspect simple, apex short; female seventh sternum in ventral aspect with caudal margin distinctly notched at middle.

Species Diagnosis

From lathropi, to which it is similar in genital characteristics, spatulatus can be separated by the extremely long paired ventral processes of the aedeagus. Additional illustrations of the genitalia were provided by DeLong and Severin (1945) and Crowder (1952) . Colored plates of the adults were presented by Severin (1945).

(Nielson 1968)

Ecology

Host Plant Activity Period (Months) Dormancy Generations
- -
Eggs -
Nymphs -
Adult -
One per year -
Continuous -
Variable -
Texananus spatulatus (van Duzee 1892a: 126 )

Higher taxonomy

Kingdom Phylum Class Order Superfamily Family
Animalia Arthropoda Insecta Hemiptera
Suborder: Auchenorrhyncha
Infraorder: Cicadamorpha
Membracoidea Cicadellidae
Subfamily: Deltocephalinae
Texananus spatulatus (van Duzee 1892a: 126 )
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