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Head and pronotum of (a) dog flea; (b) of cat flea; (c) of hen flea (d) Nycteridiphilus (Ischnopsyllus) hexactenus

Head and pronotum of (a) dog flea; (b) of cat flea; (c) of hen flea (d) Nycteridiphilus (Ischnopsyllus) hexactenus.jpg Harvest mites. (Larvæ of Trombidium)ThumbnailsHead of a spider showing poison gland (c) and its relation to the chelicera (a)Harvest mites. (Larvæ of Trombidium)ThumbnailsHead of a spider showing poison gland (c) and its relation to the chelicera (a)Harvest mites. (Larvæ of Trombidium)ThumbnailsHead of a spider showing poison gland (c) and its relation to the chelicera (a)Harvest mites. (Larvæ of Trombidium)ThumbnailsHead of a spider showing poison gland (c) and its relation to the chelicera (a)Harvest mites. (Larvæ of Trombidium)ThumbnailsHead of a spider showing poison gland (c) and its relation to the chelicera (a)Harvest mites. (Larvæ of Trombidium)ThumbnailsHead of a spider showing poison gland (c) and its relation to the chelicera (a)