Bryobia praetiosa Koch, 1836, Koch, 1836

Toroitich, Faith J., Ueckermann, Edward A., Theron, Pieter D. & Knapp, Markus, 2009, The tetranychid mites (Acari: Tetranychidae) of Kenya and a redescription of the species Peltanobia erasmusi Meyer (Acari: Tetranychidae) based on males, Zootaxa 2176, pp. 33-47: 34

publication ID 10.5281/zenodo.189364

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Bryobia praetiosa Koch, 1836


Bryobia praetiosa Koch, 1836  

Tarsus I very long, more than twice as long as other tarsi. It has five pairs of genitoanal setae and one pair of pregenital setae. Tarsus I with two pairs of duplex setae and tarsus II has one pair. The peritreme ends in a protruding sausage-like structure (anastomosis). Body measurements are as follows: Body length: 550 µm, width 350 µm. Leg I is 590 µm long and leg II is 240 µm long.

Leg chaetotaxy as follows: genua 8 - 6 - 6 - 5; femora 21 - 11 - 5 -(4 / 3); coxae 2 - 1 - 1 - 1.

Solenidia on tarsus III and IV associated with tactile setae to form duplex setae. Leg I slightly longer than total body length.

Specimens examined: Four females collected on Chloris gayana   ( Poaceae   ) in Ngarenyiro, Laikipia district (N00°04.971'; E036° 55.956 ') and 3 larvae collected on Sida schimperiana   ( Malvaceae   ) from Kitengela, Kajiado district (S01° 32.319 '; E036° 56.497 ').

Remarks: This species has a world-wide distribution and occurs on a wide range of low lying host plants belonging to a wide range of families ( Migeon and Dorkeld, 2006). Previous records of this species on members of the family Poaceae   which include wheat, rye and barley were reported in Arizona ( Tuttle and Baker, 1964). In this study, the specimens were collected in savanna grasslands. The species is dark red in colour