Flat Mites of the World

Raoiella species 4A

Key characters

  • setae c1, d1, e1 spatulate (Figs. 1-4)
  • seta h1 longer than h2 (Fig. 5)
  • seta h2 spatulate (Fig. 5)
  • seta f2 obviously shorter than f3 (Fig. 5)
  • coxae III-IV nude
  • femur II with 3 setae (d, bv", v' present; l' absent)
  • genua I-II with 3 setae (d, l', l")
  • tarsus I-II with companion seta subequal to solenidion or slightly shorter (Fig. 6)
  • dorsal seta on tibiae I-II thick, with spatulate tip, sometimes with a broad blunt tip (Figs. 7, 8)
  • palp tibiotarsus with one solenidion and one tapered setiform eupathidium distally (Fig. 9), and one seta dorsally
  • setae ps1 and ps2 inserted adjacent to each other (Fig. 10)
  • male with short ps1 setae, 8-10 microns (Fig. 11)
  • male femur II and genua I-II same as female
  • larva with elongate, filiform setae h2

Similar species

Raoiella species 4A is morphologically similar to Raoiella species 4B and 11.

Raoiella species 4A: prodorsal setae sc1 28-31; seta d on tibiae I 58-65 and tibiae II 58-61; companion seta on tarsus I subequal or shorter than solenidion. Male with one seta on trochanter IV.

Raoiella species 4B: prodorsal setae sc1 30-47; seta d on tibiae I 74-81 and tibiae II 65-69; companion seta on tarsus I longer than solendion. Male with one seta on trochanter IV.

Raoiella species 11: male with trochanter IV nude.

Distribution

Australia (QLD)

Hosts

Narrow-leaved ironbark, Eucalyptus crebra (Myrtaceae)

Remarks

This species is currently being described by Beard et al.

Grouped with Raoiella species 4B as species 4 in Dowling et al. (2012); listed as species 4 in Beard et al. (2012).

References

Beard et al. (2012); Dowling et al. (2012)

<em>Raoiella</em> species 4A

Fig. 1. Raoiella species 4A adult female dorsum.

<em>Raoiella</em> species 4A

Fig. 2. Raoiella species 4A adult female dorsum.

<em>Raoiella</em> species 4A

Fig. 3. Raoiella species 4A adult female, central dorsum.

<em>Raoiella</em> species 4A

Fig. 4. Raoiella species 4A adult female, anterior lateral dorsal opisthosoma.

<em>Raoiella</em> species 4A

Fig. 5. Raoiella species 4A adult female, posterior dorsum.

<em>Raoiella</em> species 4A

Fig. 6. Raoiella species 4A adult female leg I (s = solenidion, cs = companion seta).

<em>Raoiella</em> species 4A

Fig. 7. Raoiella species 4A adult female leg II (d = dorsal seta on tibia I, s = solenidion, cs = companion seta).

<em>Raoiella</em> species 4A

Fig. 8. Raoiella species 4A adult female leg I indicating dorsal seta, d, on tibia I.

<em>Raoiella</em> species 4A

Fig. 9. Raoiella species 4A adult female palps (s = solenidion, e = eupathidium).

<em>Raoiella</em> species 4A

Fig. 10. Raoiella species 4A adult female posterior venter (genital region).

<em>Raoiella</em> species 4A

Fig. 11. Raoiella species 4A adult male posterior opisthosoma, indicating setae ps1 (arrow).