Triophtydeus immanis Kuznetzov, 1973

Ueckermann, Edward A. & Grout, Timothy G., 2007, Tydeoid mites (Acari: Tydeidae, Edbakerellidae, Iolinidae) occurring on Citrus in southern Africa, Journal of Natural History 41 (37 - 40), pp. 2351-2378 : 2356

publication ID	https://doi.org/ 10.1080/00222930701589921
persistent identifier	https://treatment.plazi.org/id/464587D1-8B4B-FFD9-FE30-FF5BFC14FAE7
treatment provided by	Carolina
scientific name	Triophtydeus immanis Kuznetzov
status

Treatment

Triophtydeus immanis Kuznetzov

( Figures 1–6 View Figures 1–6 )

Triophtydeus immanis Kuznetzov 1972, p 15 ; André 1985, p 193.

Material examined

Crimea: four paratype females from Rhamnus daυurica Pall ( Rhamnaceae ); South Africa: Northern Cape Province: 10 females from Citrus sp., Augrabies (28 ° 379S, 20 ° 229E) near Kakamas and Zeekoeisteek near Blouputz (29 ° 499S, 21 ° 229E) , Northern Cape Province, 14 May 2003, T. G. Grout .

Diagnosis

Adults. This species is unique in having four pairs of genital and aggenital setae.

Female (n55). Dimensions (measurements of a paratype in parentheses): length of body, 246–268 (252); width (at level of c setae) 117–132 (130); legs: I 138–146 (148); II 94–108 (104); III 101–108 (104); IV 104–110 (120); setae: υi 9 (9); υe 9 (9); sci 25–28 (25); sce 13 (13); c 1 9 (9); c 2 16 (16); d 9 (9); e 13 (13); f 1 13–16 (14); f 2 22–28 (22); h 1 25 (22); h 2 28– 32 (25); ps 1 19–25 (16); ps 2 16–19 (16); ps 3 9 (9) .

Dorsum ( Figure 1 View Figures 1–6 ): all dorsal setae plumose. Prodorsum with four pairs of setae, with sci the longest ( Figure 2 View Figures 1–6 ). No eyes are visible. Opisthosoma with eight pairs of setae and three pairs of slitlike cupules (ia, im and ip). Striae longitudinal on prodorsum, transverse medially and longitudinal to diagonal laterally on opisthosoma.

Venter ( Figure 3 View Figures 1–6 ): genital region with two pairs of eugenital setae in acetabulum and four pairs of genital and aggenital setae. Epimeral formula 3-1-3-3. Cupule ih lateral to setae ps 3. Anal opening caudally with three pairs of anal setae (ps 1–3), with ps 1–2 being dorsal.

Gnathosoma ( Figure 4 View Figures 1–6 ): palp chaetotaxy (tarsus to trochanter): 5-2-2-0. According to André (1980, 1985) it is 6-2-2 with a solenidion on tibiotarsus. This solenidion is difficult to detect and was observed only once in a remounted specimen (H. M. Andre´, personal communication). A thorough examination of the tibiotarsus of paratype and local specimens showed only five setae and no sign of a solenidion. Tibiotarsus with seta pζ tridentate distally, d forked distally, l 0 plumose, and setae l 9 and ba simple. Cheliceral stylets (11) almost half the length of palp tibiotarsus (19).

Legs ( Figures 5, 6 View Figures 1–6 ): leg chaetotaxy as in André (1985). Solenidia on tarsi I–II very short, club-shaped. All leg setae plumose. Coxae I without coxal glands.