PMC7767827_01
Skin lesions due to Ornithonyssus bursa (arrows).
fvets-07-567902-g0001.jpg
PMC7767827_01_fvets-07-567902-g0001.jpg
F1
The lesions were located primarily in the pelvic, gluteal, coccygeal (Figure 1), and perineal regions, under the breast, and to a lesser extent on the neck, wrists and torso.
Ventral view of Ornithonyssus bursa adult female showing the posteriorly narrowed genitoventral shield (upper arrow) and the teardrop-shaped anal plate with anal opening at the anterior end (lower arrow). Scale bar: 50 mum.
fvets-07-567902-g0002.jpg
PMC7767827_01_fvets-07-567902-g0002.jpg
F2
The three mites were identified as O. bursa females based on the following morphological characteristics: tritosternum present, a posteriorly narrowed genitoventral shield, dorsum of body with relatively few setae, elongate, edentate chelicerae, sternal plate wider than long, short, shearlike chelae with well-developed, distinct fixed and movable digits, a teardrop shaped anal plate with anal opening at the anterior end (Figure 2), single holodorsal shield gradually decreasing in width posteriorly; a j6 setal pair shorter, not reaching the bases of following pair and the third pair of setae clearly on posterior corners of sternal shield (Figure 3).
Detail of the sternal shield bearing three pairs of setae. Scale bar: 50 mum.
fvets-07-567902-g0003.jpg
PMC7767827_01_fvets-07-567902-g0003.jpg
F3
The three mites were identified as O. bursa females based on the following morphological characteristics: tritosternum present, a posteriorly narrowed genitoventral shield, dorsum of body with relatively few setae, elongate, edentate chelicerae, sternal plate wider than long, short, shearlike chelae with well-developed, distinct fixed and movable digits, a teardrop shaped anal plate with anal opening at the anterior end (Figure 2), single holodorsal shield gradually decreasing in width posteriorly; a j6 setal pair shorter, not reaching the bases of following pair and the third pair of setae clearly on posterior corners of sternal shield (Figure 3).