CHAPTER XV

LETTERS TO MR. D. D. GIBB: Great tortoiseshell butterfly 128 infestation—Charlock weevil—Gout fly—Forest fly—Structure of its foot—Great gadfly—Horse breeze flies—Deer forest fly in Scotland—Sheep forest fly—Hessian fly and elbowed wheat straw—Bean-seed beetles—Millepedes—American blight—Brickdust-like deposit on apple trees—Insect cases for the show at St. Albans—Specimens of forest fly chloroformed—Death from fly poisoning—Looper caterpillars—Diamond-back moth—Corn sawfly.