|scientific name Frankliniella acheta |
Arnica cordifolia, yarrow, prairie, alpine meadow and Dryas sp. (Chiasson, 1986).
Adults collected in July and August.
Body size varies around 1.2mm in length and is dark brown to black. Fore tibiae and tarsi are lighter brown or yellowish compared to body colour. Antennal segments 3 and 4 are paler than the rest of the antennal segments, which are dark brown like the rest of the body. Fore wings are dark brown, except for a paler spot just beyond the wing scale. Head is almost as long as wide and the pronotum has anastomosing lines of sculpture. Intermediate antennal segments are elongated, and antennal segment 8 is 3 times as long as wide. Females are macropterous (Hood, 1925). All body setae are short as is characteristic of members of the Minuta Complex (Sakimura and O'Neill, 1979).
This species is found at higher elevations in Colorado (Sakimura and O'Neill, 1979), and in Alberta and Saskatchewan (Chiasson, 1986).
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