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Left to Right: unengorged female, 1/4 engorged, 1/2 engorged and fully engorged
As the tick engorges the shield remains consistent in size and color although it tilts forward to a more vertical position.
Image courtesy of Dick Gadd, SCS Limited
Left to Right: unengorged female, 1/4 engorged, 1/2 engorged and fully engorged
As the tick engorges the shield remains consistent in size and color although it tilts forward to a more vertical position.
Image courtesy of Dick Gadd, SCS Limited