|scientific name Baliothrips dispar |
Sedges, clover, grasses, meadow, Hordeum jubatum (Chiasson, 1986) marsh (Stannard, 1968).
The body varies around 1.4 mm in length, and is dark brown. Antennal segments 3 and 4 and all tarsi are yellowish. Forewings are pale at the base, pale brown in the middle, dark brown at the tip (Stannard, 1968). Ocelli are red in unmacerated specimens (Heming). Head slightly wider than long and is moderate in size. The prothorax is almost entirely bare of setae in the center (Stannard, 1968). This species is wing polymorphic, with males and females being brachypterous, up to fully winged (Heming). Abdominal tergite 8 lacks a complete comb of microtrichia on the posterior margin. Abdominal sternites have a posterior pair of setae placed forward of the margin in most sternites (Stannard, 1968).
Uncommon in North America (Stannard, 1968), and in Canada (Chiasson, 1986).
Alberta, Manitoba, Alaska (Chiasson, 1986), USA, Czechoslovakia, England. It is presumed to be Holarctic (Stannard, 1968).
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