Flat Mites of the World

Raoiella species 4B

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 with companion seta longer than solenidion, finely tapered, can appear subequal if fine tip is broken (Fig. 6)
  • tarsus II with companion seta slightly longer than or subequal in length to solenidion (Figs. 7, 8)
  • dorsal seta on tibiae I-II thick, with spatulate tip, sometimes with a tapered blunt tip (Figs. 6, 7, 9)
  • palp tibiotarsus with one solenidion and one tapered, setiform eupathidium distally (Fig. 10), and one seta dorsally
  • setae ps1 and ps2 inserted adjacent to each other
  • male with short ps1 setae, 9-10 microns (Fig. 11)
  • male femur II and genua I-II same as female
  • larva with elongate, filiform setae h2 (Fig. 12)

Similar species

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

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 (make sure it is not broken). Male with one seta on trochanter IV.

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 11: male with trochanter IV nude.

Distribution

Australia (WA)

Hosts

Illyarrie, Eucalyptus erythrocorys (Myrtaceae)

Remarks

This species is currently being described by Beard et al.

Grouped with Raoiella species 4A as species 4 in Dowling et al. (2012).

References

Dowling et al. (2012)

<em>Raoiella</em> species 4B

Fig. 1. Raoiella species 4B adult female (arrows indicating dorsal setae d on tibiae I-II).

<em>Raoiella</em> species 4B

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

<em>Raoiella</em> species 4B

Fig. 3. Raoiella species 4B adult female central dorsum.

<em>Raoiella</em> species 4B

Fig. 4. Raoiella species 4B adult female anterior lateral opisthosoma.

<em>Raoiella</em> species 4B

Fig. 5. Raoiella species 4B adult female posterior dorsum.

<em>Raoiella</em> species 4B

Fig. 6. Raoiella species 4B adult female leg I (d = dorsal seta on tibia I, s = solenidion, cs = companion seta).

<em>Raoiella</em> species 4B

Fig. 7. Raoiella species 4B adult female leg II with solenidion and subequal companion seta subequal in length (d = dorsal seta on tibia II, s = solenidion, cs = companion seta).

<em>Raoiella</em> species 4B

Fig. 8. Raoiella species 4B adult female leg II with companion seta slightly longer than solenidion (s = solenidion, cs = companion seta).

<em>Raoiella</em> species 4B

Fig. 9. Raoiella species 4B adult female leg I indicating spatulate dorsal seta d on tibiae.

<em>Raoiella</em> species 4B

Fig. 10. Raoiella species 4B adult female palps (s = solenidion, e = eupathidium).

<em>Raoiella</em> species 4B

Fig. 11. Raoiella species 4B adult male opisthosoma indicating setae ps1 (aed = aedeagus).

<em>Raoiella</em> species 4B

Fig. 12. Raoiella species 4B larva, posterior venter, indicating elongate, filiform setae h2.