Jordaan, L.C. (1977) Hybridization studies on the Tetranychus cinnabarinus complex in South Africa (Acari: Tetranychidae). Journal of Entomological Society of South Africa, 40, 147-156.  Home/Search   Document Not in Database   Summary   Related Articles

....area between the third and fourth dorsal central setae on female opisthosoma, B) the shape of male aedeagus and (C) the colour of live summer females and newly laid eggs. The separation of the two species was supported by some subsequent studies (e.g. Parr Hussey 1960; van de Bund Helle 1960; Jordaan 1977; Brandenburg Kennedy 1981) but rejected by others (e.g. Dupont 1979; Mollet Sevacherian 1984) Meyer (1987) after reviewing studies known to her by then, followed Dupont (1979) in considering T. cinnabarinus as a synonym of T. urticae. This was generally accepted in several subsequent books ....

....is still in progress. The extent of speciation can be seen in many breeding experiments demonstrating complete reproduction isolation between the two or reduced fertility of hybrid offsprings (Keh 1952; Boudreaux 1956; Dillion 1958; Parr Hussey 1960; van de Bund Helle 1960; Monrae 1963; Jordaan 1977; Kuang Cheng 1990; P. Croft et al. personal communication, 2000) The experiments showing the lack of these reproductive barriers are the exceptions (i.e. Dupont 1979) rather than the usual. Several morphological characters commonly used in the past (by Boudreaux 1956 and Kuang Cheng 1990) ....

Jordaan, L.C. (1977) Hybridization studies on the Tetranychus cinnabarinus complex in South Africa (Acari: Tetranychidae). Journal of Entomological Society of South Africa, 40, 147-156.

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