Scanning electron microscopy of gnatosoma and tarsus of larvae of Ornithodoros faccinii n. sp. A. Capitulum, ventral view. B. Details of capitulum showing small spurs at the base of hypostome in the lateral position (black arrow). C. Detail of hypostome, palpi and chelicerae. D. Trochanter of palpi with 11 short spurs in the inner side, some of them are bifid (black arrow). E. Tibiotarsus of palpi. F. Hypostome with dental formula 3/3 in the anterior third, and then 2/2 posteriorly to the base. G. Tarsi I. Scale bars: A. 100 μm; B. 500 μm; C. 25 μm; D. 15 μm; E. 15 μm; F. 10 μm; G. 50 μm.