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Onion thrips

Scientific Name
Thrips tabaci
Scientific Author
Lindeman
Taxonomy
Thysanoptera, Terebrantia, Thripidae, Thripinae
Status
Exotic Species Occurrence in Australia
Reliability
High
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Diagnostic Images

Dorsal
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Caption
Adult female
Source
Laurence Mound ANIC, CSIRO
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Diagnostic Images (7)
Diagnostic Notes

Female varying from yellow to dark brown; ocellar pigment never red, usually grey; forewings pale. Antennae 7-segmented. Head wider than long, with 2 pairs of ocellar setae; pair III small and arising on anterior margins or just within ocellar triangle. Pronotum with 2 pairs of posteroangular setae; posterior margin with 3 (or 4) pairs of setae. Metanotum irregularly reticulate medially with lines converging to midpoint of posterior margin; median setae short and arising behind anterior margin; campaniform sensilla absent. Forewing first vein usually with 4 (2–6) setae on distal half, second vein with about 15 setae. Tergite II with 3 lateral marginal setae; V–VIII with ctenidia present laterally, on VIII posteromesad to spiracles; posterior margin of VIII with complete comb of long slender microtrichia; pleurotergites without discal setae but with many rows of fine microtrichia. Sternites without discal setae.

Male small and yellow; tergite VIII with marginal comb represented by a few irregular microtrichia; tergite IX S1 & S2 setae arising on a transverse straight line; sternites III–V with narrow transverse glandular area.

 

More Information
Specimen Contact
Laurence Mound
Author
Mound, L.
Created
04/08/2005 04:07 AEST
Last Updated
10/01/2007 12:09 AEST
Citation
Mound, L. (2005) Onion thrips (Thrips tabaci) Updated on 1/10/2007 12:09:25 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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