#plant_louse__louse  any of several small insects especially aphids that feed by sucking the juices from plants
  supertype:  #homopterous_insect__homopterousinsect__homopteran  insects having membranous forewings and hind wings
  subtype:  #aphid  any of various small plant-sucking insects
     subtype:  #green_apple_aphid__greenappleaphid__apple_aphid__appleaphid__Aphis_pomi  bright green aphid; feeds on and causes curling of apple leaves
     subtype:  #blackfly__bean_aphid__Aphis_fabae  blackish aphid that infests e.g. beans and sugar beets
     subtype:  #greenfly  greenish aphid; pest on garden and crop plants
        subtype:  #green_peach_aphid__greenpeachaphid  yellowish green aphid that is especially destructive to peaches
        subtype:  #pale_chrysanthemum_aphid  important pest of chrysanthemums
     subtype:  #ant_cow__antcow  excretes a honeylike substance eaten by ants
     subtype:  #woolly_aphid__woolly_plant_louse  secretes a waxy substance like a mass of fine curly white cotton or woolly threads
        subtype:  #woolly_apple_aphid__American_blight__Eriosoma_lanigerum  primarily a bark feeder on aerial parts and roots of apple and other trees
        subtype:  #woolly_alder_aphid__Prociphilus_tessellatus  attacks alders
  subtype:  #adelgid  any of various insects that feed and form galls on conifers
     subtype:  #balsam_woolly_aphid__Adelges_piceae  a variety of adelgid
     subtype:  #spruce_gall_aphid__Adelges_abietis  a variety of adelgid
     subtype:  #pine_leaf_aphid__Pineus_pinifoliae  a variety of adelgid
     subtype:  #woolly_adelgid  an insect that feeds on hemlocks; its egg sacs are small fuzzy white balls like artificial snow on a Christmas tree
  subtype:  #grape_louse__grapelouse__grape_phylloxera__grapephylloxera__Phylloxera_vitifoleae  destructive to various grape plants
  subtype:  #jumping_plant_louse__psylla__psyllid  small active cicada-like insect with hind legs adapted for leaping; feeds on plant juices
  subtype:  #oak_blight__oakblight  a black plant louse that lives on oaks and dogwoods

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