Thrips
Oriental tea thrips
Scirtothrips dorsalis Hood Thysanoptera, Terebrantia, Thripidae, Thripinae
Status
Exotic (but present in Australia)
Other Common Names
Scientific Synonyms
Host Types
Distribution - Regions
Distribution - Notes

Widespread across Asia to the subtropical parts of Australia, but now established in Israel and South Africa.

Diagnostic Characters:

Female yellow, tergal and sternal antecostal ridges brown with associated brown area; antennal segments V–VIII brown; forewings weakly shaded. Antennae 8-segmented. Head wider than long, postocular region and ocellar triangle with closely spaced transverse lines; 3 pairs of ocellar setae, pair III close together between hind ocelli. Pronotum with transverse lines; 4 pairs of posteriomarginal setae. Metanotum with parallel longitudinal lines of sculpture on posterior half; campaniform sensilla absent; median setae arise behind anterior margin. Forewing first vein with 3 setae on distal half, second vein with 2 widely spaced setae; posterior fringe cilia straight. Tergites III–VI with median setae small but close together; II–VIII with lateral thirds covered in closely spaced rows of fine microtrichia; VIII with comb complete across posterior margin; IX with several rows of discal microtrichia. Sternites covered with rows of microtrichia except anteromedially.

Male smaller; tergite IX posterior angles without pair of stout curved processes (drepanae).

 

Broad Sweep
Commodity
Specifics

Highly polyphagous, breeding on young terminal leaves of many different plants. Recorded as a pest of strawberry in Queensland, chillies in India, lotus in Taiwan, and tea in several Asian countries.

 

Native host plants are probably various Fabaceae, such as Acacia, Brownea, Mimosa and Saraca, but S. dorsalis is known as a pest on many crops including Actinidia chinensis, Arachis, Capsicum, Citrus, cotton (Gossypium hirsutum), Fragaria, grapevine (Vitis vinifera), Hevea brasiliensis, Hydrangea, Mangifera, Nelumbo, onions (Allium cepa), Ricinus, Rosa, tamarinds (Tamarindus indica) and tea (Camellia sinensis). 

 

Source:

 

See EPPO datasheet weblink
 

Specimen Contact Point
laurence.mound@csiro.au
Name
Laurence Mound
Web links
Padil links
None Listed
References

Moritz G, Mound LA, Morris DC & Goldarazena A. 2004. Pest thrips of the world – visual and molecular identification of pest thrips. Cd-rom published by CBIT Brisbane, Australia <http://www.cbit.uq.edu.au/software/pestthrips/default.htm>

Acknowledgements
Citation
Mound, L. (2007) Oriental tea thrips (Scirtothrips dorsalis) Pest and Diseases Image Library. Updated on 9/20/2007 3:07:28 PM. Available online: http://www.padil.gov.au
Last Updated
9/20/2007 3:07:28 PM

Diagnostic Images

Abdomen
Caption:
Abdominal tergites VII - VIII
Source:
Laurence Mound, ANIC, CSIRO
Abdomen
Caption:
Abdominal sternites VI - VII
Source:
Laurence Mound, ANIC, CSIRO
Antenna
Caption:
Antenna
Source:
Laurence Mound, ANIC, CSIRO
Fore Wing
Caption:
Forewing
Source:
Laurence Mound, ANIC, CSIRO
Head Top
Caption:
Head and pronotum
Source:
Laurence Mound, ANIC, CSIRO
Thorax Above
Caption:
Mesonotum and metanotum
Source:
Laurence Mound, ANIC, CSIRO

Overview Images

Dorsal
Caption:
Adult female
Source:
Laurence Mound, ANIC, CSIRO


Full size images available at http://www.padil.gov.au.