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Lachesilla pedicularia
Lachesilla pedicularia is a species of Psocoptera from the family Lachesillidae.[1] It is commonly known as cosmopolitan grain barklouse or cosmopolitan grain psocid and, as these names suggests, it has an almost cosmopolitan distribution.[2] DescriptionLachesilla pedicularia is 1.5-2 mm long. It is often macropterous (with long wings), but brachypterous (with short wings) individuals also occur.[3] Some features distinguishing this from other species of Lachesilla are the abdomen having brown stripes, the forewing being hairless, wing vein R1 meeting the wing edge almost at a right angle, and several other wing veins being marked with brown.[3] There are also features in the genitalia. The subgenital plate of females forms a simple curved shape, while the hypandrium of males has simple (not forked) appendages.[3] HabitatThis species occurs on the trunks and (to a lesser extent) branches of a range of trees, including beech, birch, broom, oak, pine, spruce, and yew.[1] It is also known from haystacks, straw bales, nests of robins, barns, houses, and stored grain.[1][2] References
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