Associations
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Foodplant / feeds on
larva of Thrips nigropilosus feeds on live Dendranthema
Remarks: season: 5-9
Foodplant / feeds on
larva of Thrips nigropilosus feeds on live Plantago lanceolata
Remarks: season: 5-9
Foodplant / feeds on
larva of Thrips nigropilosus feeds on live Plantago maritima
Remarks: season: 5-9
Foodplant / feeds on
larva of Thrips nigropilosus feeds on live Asteraceae
Remarks: season: 5-9
Conservation Status
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It is a pest of chrysanthemums and gloxinia, and is a minor pest in greenhouses (Nakahara 1994).
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Cyclicity
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Undocumented.
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Distribution
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Alberta, B.C. (Chiasson 1986), U.S., Europe, Japan, New Zealand, Africa, Asia, Australia (Nakahara 1994). This species is found in temperate regions (Moritz et al 2001).
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General Description
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Body varies around 1.25mm in length, and is yellow with brown blotches on the thorax and basal abdominal tergites. The legs are yellow. Antennal segments are brown except for segment 1 which is yellow, segment 2 which is yellowish, and the basal parts of segments 3 and 4 which are yellowish brown fading to brown distally (Nakahara 1994). Forewings are pale gray. The head is moderate in size, antennae are 7 segmented, and the prothorax is moderately covered with long setae. The prothorax has a well-developed pair of anterior setae and the inner posterior pair of setae is about one and a half times longer than the dorsal length of the eye. Along the posterior margin of the prothorax 3 pairs of setae are present between the major pairs (Stannard 1968). There are 3 distal setae present on the forevein of each forewing. Females are macropterous or brachypterous, males are brachypterous (Nakahara 1994). Abdominal tergite 2 has 3 setae on each lateral margin. A complete comb of setae is present on the posterior margin of tergite 8, and tergite 9 has 1 pair of sensilla (Nakahara 1994).
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Habitat
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Polyphagous; on Chrysanthemums (Nakahara 1994), in greenhouses (Heming Pers. Comm. 2002).
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Life Cycle
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High population densities increase the proportion of female offspring that are brachypterous (Nakao 1995). This species was introduced from Europe (Nakahara 1994).
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Trophic Strategy
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This species feeds on the foliage of its host plants (Nakahara 1994).
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