Raoiella eugeniae
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Fig. 1. Raoiella eugeniae adult female dorsum. |
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Fig. 2. Raoiella eugeniae adult female dorsum. |
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Fig. 3. Raoiella eugeniae adult female posterior venter (genital region). |
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Fig. 4. Raoiella eugeniae adult female leg I (s = solenidion; cs = companion seta; d = dorsal seta on tibia). |
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Fig. 5. Raoiella eugeniae adult female leg II (s = solenidion; cs = companion seta). |
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Fig. 6. Raoiella eugeniae adult female leg II (arrow indicates dorsal seta on tibia). |
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Fig. 7. Raoiella eugeniae adult female palp (arrow indicates forked eupathidium). |
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Fig. 8. Raoiella eugeniae adult female posterior venter (genital region). |
Authority
(Mohanasundaram)
Synonyms
fSuspected synonyms
cKey characters
- setae c1, d1, e1, obviously spatulate (Figs. 1, 2)
- seta h1 subequal in length to h2 (often inserted ventrally) (Fig. 3)
- seta h2 spatulate, not tapered (Fig. 3)
- seta f2 longer than f3 (Figs. 2, 3)
- coxae III-IV with one seta each (3b, 4b)
- femur II with 4 setae (d, l', bv", v')
- genua I-II with 3 setae (d, l', l")
- tarsus I with companion seta obviously longer than solenidion, finely tapered (Fig. 4)
- tarsus II with companion seta shorter than solenidion (sometimes subequal in length) (Fig. 5)
- dorsal seta on tibiae I with a spatulate tip (Fig. 4)
- dorsal seta on tibiae II weakly spatulate or with broad blunt tip (Fig. 6)
- palp tibiotarsus with one solenidion and one forked eupathidium distally (Fig. 7), and one seta dorsally
- setae ps1 and ps2 inserted adjacent to each other (Figs. 3, 8)
- male with short ps1 setae, 11-13 microns
- male femur II and genua I-II same as female
- larva unknown
Similar species
Raoiella eugeniae is similar morphologically to Raoiella macfarlanei.
Raoiella eugeniae: opisthosomal setae f2 40-56; setae f3 22-33; setae d on femora I-II are subequal in length to setae d on genua I-II; palp eupathidium clearly forked distally.
Raoiella macfarlanei: opisthosomal setae f2 68-79; setae f3 31-33; setae d on femora I-II are longer than setae d on genua I-II; palp eupathidium not forked distally.
Distribution
India
Hosts
Syzygium sp. (Myrtaceae) (originally listed as Eugenia sp., Myrtaceae)
Remarks
This species was redescribed by Beard et al. (2018) and placed in the newly proposed macfarlanei species group.
The Torre-Santana et al. (2010) synonymy of R. eugeniae with R. indica is not accepted as it is clearly based on a misunderstanding of the findings of Dowling et al. (2008).
References
Beard et al. (2018); *Mohanasundaram (1996)
* - original description
