Urigersonus
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Fig. 1. Urigersonus bunyai female dorsum (after Smiley & Gerson 1995). |
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Fig. 2. Urigersonus bunyai female dorsum (image: Gary Bauchan, USDA-ARS). |
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Fig. 3. Urigersonus bunyai female dorsum. |
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Fig. 4. Urigersonus bunyai female live. |
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Fig. 5. Urigersonus bunyai female venter, with detail of genital region. |
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Fig. 6. Urigersonus bunyai female venter, detail of genital region (image: Gary Bauchan, USDA-ARS). |
Key characters
- c2, d2, e2, f2 absent (Figs. 1, 2, 3)
- v2, sc1, c1, d1, e1 minute (Figs. 1, 2)
- sc2, f3 extremely elongate (Figs. 1, 2, 3); held at right angles to body when alive (Fig. 4)
- h2 not elongate
- body extremely flat (Fig. 4)
- anterior margin of prodorsum with forked projection
- ventral, genital and anal plates not developed (Figs. 5-6)
- 3 pairs ps setae (Figs. 5-6)
- 4 segmented palp; solenidion inserted at base of palp tarsus not at tip
Similar taxa
Tenuipalpus - has seta h2 elongate; setae sc2, f3 similar to other dorsal setae
Ultratenuipalpus sensu stricto - no dorsal setae elongate
Number of species
One - U. bunyai
Authority
Mesa, Ochoa and Evans
Distribution
Australia
Hosts
Araucaria bidwilli (Araucariaceae)
Colour
- bright red with some black markings when alive; dorsal setae white (Fig. 6)
- eggs red
Remarks
Seta f3 is not elongate in the larvae.
