|scientific name Toxonothrips |
Grasses, sedges (Chiasson, 1986).
The head is about as wide as it is long and the cheeks are rounded. Ocelli are present in females, but absent in males. Antennae are 7 segmented, with a 1-segment style (Bailey, 1957). Forked sense cones are present on antennal segments 3 and 4, and segment 3 has a pedicel. The prothorax has 2 pairs of well-developed posteroangular setae. Females are macropterous, and males are apterous. When wings are present, the hind vein is regularly set with setae. There is a comb of microtrichia on abdominal tergite 8. An oval glandular area is present on each of sternites 3 and 4 on males (Chiasson, 1986).
Rare (Bailey, 1957).
Alberta, Alaska (Chiasson, 1986), California, Oregon (Bailey, 1957).
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