Figure 6.

(A) Oval-shaped acarine eminence at the end of the tunnel (2) with the delta-wing sign (1); partially obliterated tunnel (3) connecting the acarine eminence with the pearly vesicle (4); magnification 50-fold. (B) Pearly vesicle (top) and acarine eminence (bottom) located at a distance from each other; no tunnel visible; the delta-wing sign is clearly visible (arrow bottom); magnification 15-fold. (C) Acarine eminence (3) at the end of an S-shaped tunnel containing a mite (2) with delta-wing sign visible (1); pearly vesicle destroyed by scratching (4); magnification 80-fold.