|scientific name Thrips vulgatissimus |
Polyphagous; and commonly on Taraxacum officinale, Salix.
Body varies around 1.2 to 1.8mm in length and is dark brown. The foretibiae are yellow apically and basally. The forewings are pale and sometimes shaded with gray beyond the wing base and at the apex. The antennae are brown while the apex of segment 2, all of segment 3, and the base of segment 4 are yellow. The head is broader than long and the cheeks are strongly arched. Ocellar setae pair 3 is posterolaterad of the anterior ocellus and the antennae are 8 segmented. The pronotum is covered with transverse anastamosing lines of sculpture, and has 3 pairs of posteromarginal setae. There are 2 anteromedial campaniform sensilla present on the mesonotum, and 2 campaniform sensilla (occasionally 1 or none) on the metanotum. The forewing has 3 distal setae (occasionally 4 or 2) on the forevein. Tergite 2 has 3 lateral setae. Tergite 8 has a complete posteromarginal comb in which the microtrichia are closely set, but irregular in length. Tergite 9 has 2 pairs of campaniform sensilla. Abdominal sternites 6 and 7 each have 1 to 3 accessory setae. On males, the glandular areas on sternites 3 to 7 are transversely elongate (Nakahara 1994).
This species prefers to breed in white flowers (Moritz et al 2001).
May be a pest of canola (Burgess and Weegar 1988).
Alberta, Newfoundland, Nova Scotia, Quebec, Ontario, Saskatchewan, B.C. N.W.T. Greenland (Chiasson 1986), U.S., Europe, and the former U.S.S.R. (Nakahara 1994).
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