The taxonomic value of the microscopic structure of the stigmal plates in the tick genus dermacentor / by Ch. Wardell Stiles.

  • Stiles, Ch. Wardell.
Date:
1910
Catalogue details

Licence: In copyright

Credit: The taxonomic value of the microscopic structure of the stigmal plates in the tick genus dermacentor / by Ch. Wardell Stiles. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

    105/444
    Some Ticks of the United States. fl.—Rocky Mountain spotted fever tick (Dermacentor venustus): Unengorged female. 2.—Same, male. 3.—Fowl tick (Argos mtniatus): Partially engorged female. 4.—Spinosc ear tick (Or- nithndoroH mcgnini): Engorged nymph. 5.—North American fever tick (Margaropus anvu- lalus): Female depositing eggs. All enlarged. (Original.)]