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Species Account


USNM; Female; 'Jamaica Gordon Tn ; Sta Chapin and Blackwelder'; Date: ii.1.37
i14067

USNM; Female; 'Jamaica Gordon Tn ; Sta Chapin and Blackwelder'; Date: ii.1.37
i14068

USNM; Male; Det. Oman; 'San German P. R.; P.R. Sur. 425. on carrots'; Date: v.17.’48-11149
i14069

USNM; Male; Det. Oman; 'San German P. R.; P.R. Sur. 425. on carrots'; Date: v.17.’48-11149
i14070

USNM; Female; 'Jamaica Gordon Tn ; Sta Chapin and Blackwelder'; Date: ii.1.37
NMW Image No. i14067

Agallia albidula Uhler

Membracoidea : Cicadellidae
Diseases Transmitted
Brazilian tomato curly top virus 16Sr Virus

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

Recorded Distribution(s):
It occurs in South America, islands of the Caribbean, and the United States. Oman in 1933 [576] reported it from Brazil, Cuba, Puerto Rico, Dominican Republic, Jamaica, St. Vincent Island, and St. Thomas Island. In the United States it was found in Mount Desert, Maine, and is thus believed to represent an importation. Additional localities listed by Metcalf in 1954 [518] were Florida, Argentina, Bahamas, and Bimini islands. Specimens were examined from Argentina. (Nielson, 1968)

Agallia albidula Uhler
Diseases Transmitted Pathogen Type
Brazilian tomato curly top virus 16Sr Virus
Crops Affected by Agallia albidula Uhler
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 braziliensis strain of Brazilian curly top virus of tomato in Brazil. Sauer in 1946 [659] was first to discover that albidula transmitted this virus to tomatoes. He obtained 24 infections out of 57 plants tested. Confirmation was established in 1949 by Bennett and Costa (62), who were able to obtain transmission of the virus to more than 40 species and varieties of plants, including tobacco, tomato, spinach, sugarbeet, flax, jimsonweed, buckwheat, spiny bur, oxalis, zinnia, and chickweed. Leafhoppers infected seedling plants 24 to 48 hours after feeding on diseased plants. The vector retained the virus from 42 to 82 days, but the progeny did not transmit the virus, indicating that the virus was not carried through the egg.
Costa in 1952
[147] obtained specific transmission of two types of tomato curly top virus in Brazil with two species of leafhoppers. A. albidula transmitted the braziliensis variety of Ruga verrucosans and thereby confirmed results of previous work. This species was unable to transmit the solanacearum. variety of R. verrucosans, a new curly top virus of tomato. A new virus disease of tomato in Puerto Rico discovered by Adsuar in 1955 [5] was not transmitted by albidula, suggesting that the virus may be related to the solanacearum strain found in Brazil.

(Nielson 1968)

This species is considered an economically important vector in the natural spread of Brazilian curly top virus of tomato in Brazil.
(Nielson 1968)

Identification Plates
Agallia albidula


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Plate 1
Species Description

Length:
male 8.40—3.50 mm., female 3.55-3.75 mm,.

Colour:
General color light tan to brown. Vertex with two distinct round black spots; pronotum light brown; elytra with light-brown markings along middle of commissure giving body banded appearance in darker specimens.

Genitalia:
Pygofer in lateral aspect about 1½ times wider than long, caudal margin with distinct, short, narrow, fingerlike lobe at about middle, directed posteroventrad; aedeagus in lateral aspect simple, recurved, shaft constricted at near middle, pointed apically; gonopore apical; style in ventral aspect bibbed, outer lobe broad, toothed apically, inner lobe narrow, slightly curved; female seventh sternum in ventral aspect with caudal margin distinctly truncate.

Species Diagnosis

This species, allied to constricta and quadripunctata, can easily be separated from both species by the pygofer with a narrow fingerlike lobe arising from the caudoventral margin and the short, recurved aedeagus.
(Nielson 1968)

Ecology

Host Plant Activity Period (Months) Dormancy Generations
- -
Eggs -
Nymphs -
Adult -
One per year -
Continuous -
Variable -
Agallia albidula Uhler

Higher taxonomy

Kingdom Phylum Class Order Superfamily Family
Animalia Arthropoda Insecta Hemiptera
Suborder: Auchenorrhyncha
Infraorder: Cicadamorpha
Membracoidea Cicadellidae
Subfamily: Agallinae
Agallia albidula Uhler
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