Tydeus Koch

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 : 2362

Genus Tydeus Koch

Tydeus Koch 1836, p 11 –12; Oudemans 1937, p 922 (in part); Kaźmierski 1989, p 292 (in part). Brachytydeus Thor 1933, p 54 (in part).

Calotydeus Oudemans 1937, p 923 (in part).

Orthotydeus André 1980, p 127 .

Type species. Tydeus spathulatus Oudemans, 1928 sensu André (2005) .

Diagnosis

Adults. Kaźmierski (1989), in agreement with André (2005), redefined this genus as follows: opisthosoma with 10 pairs of setae (ps included); poroidotaxy: three; genital organotaxy, adults: no eugenital setae in female but four pairs in male, four or six pairs of genital and four pairs of aggenital setae in both adults; coxa I with coxal organ; chaetotaxy of leg segments: 8(ω)-6(ω)-5-5, tibiae 4-2-2-2, genua 3-2-1-1, femora 3-2-1-1, trochantera 1-0-1-0, epimeral formula, adults: 3-1-4-2; solenidiotaxy: two, femur IV entire; palp chaetotaxy: 6(ω)-2-2.