Özet:

The two tetranychid genera Paraplonobia Wainstein and Neopetrobia Wainstein (Trombidiformes: Tetranychidae) are reported for the first time from Saudi Arabia. Three new species Paraplonobia (Anaplonobia) arabica Mirza & Alatawi, sp. n., P. (A.) haloxylonia Alatawi & Mirza, sp. n. and P. (A.) tabukensis Kamran & Alatawi, sp. n. are described and illustrated based on adult females, collected from Prosopis juliflora (SW.) Dc. (Fabaceae) and Haloxylon salicornicum Bunge (Amaranthaceae) from two different regions of Saudi Arabia. Neopetrobia mcgregori (Pritchard and Baker) is redescribed and illustrated based on female collected from Cynodon dactylon L. (Poaceae).The diagnostic morphological features including leg chaetotaxy of all known species of the subgenus Anaplonobia is tabulated. A key to the world species of the genus Paraplonobia is also provided.

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