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Species Account


USNM; Male; Det. P. S. Cwikla; 'Winters CAL'; Coll.: Oman; Date: 6-26-1935
i14104

USNM; Male; Det. P. S. Cwikla; 'Winters CAL'; Coll.: Oman; Date: 6-26-1935
i14105

USNM; Male; 'S of Mt Shasta Cy CAL'; Coll.: Oman; Date: 6-29-1935
i14106

USNM; Male; 'S of Mt Shasta Cy CAL'; Coll.: Oman; Date: 6-29-1935
i14107

USNM; Male; Det. P. S. Cwikla; 'Winters CAL'; Coll.: Oman; Date: 6-26-1935
NMW Image No. i14104

Chlorotettix similis DeLong 1918c: 14

Membracoidea : Cicadellidae
Diseases Transmitted

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

Recorded Distribution(s):
It is known only in the Western United States. DeLong and Severin in 1947 (195) recorded it from the Pacific North¬west and California (Sonoma County). (Nielson, 1968)

Chlorotettix similis DeLong 1918c: 14
Diseases Transmitted Pathogen Type
Crops Affected by Chlorotettix similis DeLong 1918c: 14
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. Severin (1947 and 1947) [701, 703] was first to report this species as a vector of this virus when he obtained 23-percent transmission from diseased celery to healthy celery. The leafhopper fed for 10 days on the inoculum and then was transferred singly and in multiple lots to successive celery plants. Attempts to transmit curly top virus by this species were not successful.


(Nielson 1968)

This species is not considered an important vector in the natural spread of this virus.


(Nielson 1968)

Identification Plates
Chlorotettix similis


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Plate 1
Species Description

Length:
Large, robust species. male 7.50—8.00 mm., female 8.20—8.80 mm.
.

Colour:
General color yellowish tan. Crown, pronotum, and scutellum yellowish tan; elytra subhyaline.

Genitalia:
Pygofer in lateral aspect about 1½ times as long as wide, caudal margin broadly convex; aedeagus in lateral aspect recurved, distal three-fourths narrow, elongate, tubelike, with four terminal needlelike processes, outer processes extremely long, three times as long as inner processes; gonopore apical; style in dorsal aspect with prominent subapical spine on outer margin; female seventh sternum in ventral aspect with caudal margin deeply notched at middle.

Species Diagnosis

From viridius, to which it is similar in general habitus, similis can be easily separated by the pygofer, which lacks the long ventral spine, and the aedeagus, whose shaft is long and narrow and terminated with two pairs of narrow processes. Severin (1947) and DeLong and Severin (1947) illustrated the adult and genitalia of this species, respectively.

(Nielson 1968)

Ecology

Host Plant Activity Period (Months) Dormancy Generations
- -
Eggs -
Nymphs -
Adult -
One per year -
Continuous -
Variable -
Chlorotettix similis DeLong 1918c: 14

Higher taxonomy

Kingdom Phylum Class Order Superfamily Family
Animalia Arthropoda Insecta Hemiptera
Suborder: Auchenorrhyncha
Infraorder: Cicadamorpha
Membracoidea Cicadellidae
Subfamily: Deltocephalinae
Chlorotettix similis DeLong 1918c: 14
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