wheal-worm noun3 •(no longer used) Any of various insects or arachnids the bites of which produce raised sores.It may be some will think it impossible for these Wheal-worms to breed between the eyes; but we see it is so, and we finde it was done so formerly — 1658 •(no longer used) A harvest mite, Trombicula sp.wheal-worm, n 1. The itch-mite acarus scabiei 2. The acarine Leptus autumnalis, or some similar harvest-bug: so named from the wheals or pimples left by its bite. See cut under harvest-mite. — 1895 •(no longer used) A mite of species Acarus autumnalis, synonym of Neotrombicula autumnalisACARUS AUTUMNALIS. Harvest-bug. Mower's Mite. Wheal-worm. Rouget. The acarus autumnalis is scarcely larger than the acarus scabiei — 1865 formswheal-worms
