Definition that contains opterous
- deathwatch minute wingless psocopterous insects injurious to books and papers
- liposcelis divinatorius minute wingless psocopterous insects injurious to books and papers
- book louse minute wingless psocopterous insects injurious to books and papers
- scale insect small homopterous insect that usually lives and feeds on plants and secretes a protective waxy covering
- aculeus a sharp-pointed process especially a sting of a hymenopterous insect
- hanging fly any of various mecopterous insects of the family Bittacidae
- scorpion fly any of various mecopterous insects of the family Panorpidae of the northern hemisphere having a long beak and long antennae; males have a tail like that of a scorpion except it is not venomous
- booklouse minute wingless psocopterous insects injurious to books and papers
- ichneumon fly hymenopterous insect that resembles a wasp and whose larvae are parasitic on caterpillars and other insect larvae