|scientific name Toxonothrips gramineae |
Carex sp., Calamagrostis sp., Rumex sp., grass (Chiasson 1986).
The body is brown with the femora, tarsi, apex of all tibiae, antennal segment 3 and the basal portions of antennal segments 4 and 5 a yellowish brown. Ocelli are present in females, absent in males. Antennal segments 3 and 4 each have a forked sense cone, segment 5 has inner and outer simple sense cones, and segment 6 has 1 inner, and 2 outer simple sense cones. The pronotum is broader than long, and the hind tibiae have a row of comb-like setae. Females are macropterous or apterous and males are apterous. When present, forewings are scythe-shaped. Abdominal tergite 8, on macropterous females, has a complete, but sparse, comb of microtrichia, which is absent on apterous females. The male has large median projection on posterior margin of tergite 8 (Bailey & Kono 1966).
Rare (Bailey 1957).
Alberta, Alaska (Chiasson 1986), California, Oregon (Bailey 1957).
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