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Fig. 1. Eutetranychus acaciae adult female paratype - detail of standard Eutetranychus ambulacra with empodium absent and lateral true claws reduced with pair of tenent hairs.
Fig. 2. Eutetranychus africanus adult female (non-type; South Africa) - detail of peritreme (arrow indicates the tip).
Fig. 3. Eutetranychus africanus adult female (non-type; South Africa) - dorsal habitus.
Fig. 4. Eutetranychus africanus adult female (non-type; South Africa) - detail of number of setae on coxae I and II (note that seta 2c is present).
Fig. 5. Eutetranychus africanus adult female (non-type; South Africa) - detail of pattern of striae on dorsal opisthosoma between setae c1 and f1.
Fig. 6. Eutetranychus africanus adult female (non-type; South Africa) - detail of pattern of striae on dorsal opisthosoma between setae e1 and h1.
Fig. 7. Eutetranychus africanus adult female (non-type; South Africa) - detail of pattern of striae on dorsal opisthosoma between setae e1 and h1.
Fig. 8. Eutetranychus africanus adult female (non-type; South Africa) - detail of pattern of pregenital striae.
Fig. 9. Eutetranychus africanus adult female (non-type; South Africa) - detail of associated setae on tarsus I (arrows indicate the bases).
Fig. 10. Eutetranychus africanus adult female (non-type; South Africa) - detail of associated setae on tarsus II (arrows indicate the bases and the tips).
Fig. 11. Eutetranychus africanus adult female (non-type; South Africa) - detail of the pattern of striae on the prodorsum.
Material examined
non-types
Taxonomy
Subfamily Tetranychinae
Tribe Eurytetranychini
Distribution
++Australia, *South Africa
Taxonomy Changes
Anychus africanus Tucker 1926
Diagnosis
Female
- empodium absent, with only lateral true claws reduced to short pads each with pair of tenent hairs (Fig. 1)
- peritreme ending in simple expanded bulb (Fig. 2)
- dorsal opisthosomal setae rod-like, barbed, inserted on small tubercles (Figs 3, 5)
- coxae I and II each with two setae present (1b, 1c; 2b, 2c) (Fig. 4)
- dorsal opisthosoma with transverse striae between c1-c1 and d1-d1, longitudinal between d1-d1 and e1-e1, and transverse between e1-e1 and h1-h1 (Figs 5-7)
- pregenital striae fine, strongly arching around genital flap (Fig. 8)
- tarsus I and II with associated setae (not duplex setae) - the tactile seta is (almost) as long as the solenidion, and the bases of the two setae are not coalesced (Figs 9, 10)
- prodorsum with broadly spaced longitudinal striae, mostly without lobes (some minute lobes anteriorly) (Fig. 11)
- leg chaetotaxy:
- tarsus I-II 17(4+3), 15(1+3)
- tibia I-II 9(1+0), 4
- pinkish yellow with dark marginal spots
Male - not examined
Hosts
*Citrus limon, *C. sinensis (Rutaceae), *Plumeria sp. (Apocynaceae)
Similar Taxa
Eutetranychus orientalis (Klein, 1936)
Eutetranychus africanus has two setae on coxae II ; Eu. orientalis has one seta on coxae II (according to literature).
References
*Tucker, R.W.E. (1926) Some South African mites. Mainly Tetranychidae and Eriophyidae. South African Department of Agriculture, Division of Entomology 5: 1-15
Notes
++ Not yet officially recorded in Australia.
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