part_of adult body adult spiracle Aperture on the ventro-lateral margin of the body. Paired structure located on opposite sides of the body at the same location. In ixodid ticks, the spiracle is located posterior to leg IV and embedded in a large spiracular plate. In argasid ticks, the spiracleis located between legs III and IV, adjacent to a small spiracular plate. Fig. 4-9, Fig. 4-10, Fig. 12-1, Fig. 12-2, Fig. 12-3, Fig. 12-4, Fig. 12-5, in Biology of Ticks ISBN:0-19-505910-7. TADS:0000059 TADS:0000059 default_namespace