scale louse
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Bark louse — (Zo[ o]l.) An insect of the family {Coccid[ae]}, which infests the bark of trees and vines. [1913 Webster] Note: The wingless females assume the shape of scales. The bark louse of the vine is {Pulvinaria innumerabilis}; that of the pear is… … The Collaborative International Dictionary of English
white louse — noun or white louse scale : a scale (Unaspis citri) that is especially destructive to citrus in Australia … Useful english dictionary
Leaf louse — Leaf Leaf (l[=e]f), n.; pl. {Leaves} (l[=e]vz). [OE. leef, lef, leaf, AS. le[ a]f; akin to S. l[=o]f, OFries. laf, D. loof foliage, G. laub, OHG. loub leaf, foliage, Icel. lauf, Sw. l[ o]f, Dan. l[ o]v, Goth. laufs; cf. Lith. lapas. Cf. {Lodge}.] … The Collaborative International Dictionary of English
Wood louse — Wood Wood, n. [OE. wode, wude, AS. wudu, wiodu; akin to OHG. witu, Icel. vi?r, Dan. & Sw. ved wood, and probably to Ir. & Gael. fiodh, W. gwydd trees, shrubs.] [1913 Webster] 1. A large and thick collection of trees; a forest or grove; frequently … The Collaborative International Dictionary of English
oystershell scale — noun also oystershell bark louse : an abundant widely distributed scale insect (Lepidosaphes ulmi) that infests and greatly injures various trees and shrubs see fig scale * * * /oy steuhr shel / a scale insect, Lepidosaphes ulmi, having a scale… … Useful english dictionary
Barnacle scale — Barnacle Bar na*cle, n. [Prob. from E. barnacle a kind of goose, which was popularly supposed to grow from this shellfish; but perh. from LL. bernacula for pernacula, dim. of perna ham, sea mussel; cf. Gr. pe rna ham. Cf. F. bernacle, barnacle, E … The Collaborative International Dictionary of English
jumping plant louse — any of numerous lice, of the family Psyllidae, that feed on plant juices and are sometimes pests of fruits and vegetables. Also called psylla, psyllid. [1900 05] * * * ▪ insect any member of the approximately 2,000 species of the insect… … Universalium
white louse scale — noun see white louse … Useful english dictionary
Cotton scale — Cotton Cot ton (k[o^]t t n), n. [F. coton, Sp. algodon the cotton plant and its wool, coton printed cotton, cloth, fr. Ar. qutun, alqutun, cotton wool. Cf. {Acton}, {Hacqueton}.] 1. A soft, downy substance, resembling fine wool, consisting of the … The Collaborative International Dictionary of English
shield scale — noun or shield louse : armored scale … Useful english dictionary
