Tydeid and triophtydeid mites (Acari: Tydeoidea) associated with grapevine (Vitaceae: Vitis spp.) in Brazil, with the descriptions of species of Prelorryia (André, 1980) and Tydeus Koch, 1835 Author Silva, Guilherme Liberato Da Author Cunha, Uemerson Silva Da Author Rocha, Matheus Dos Santos Author Panou, Eleni N. Author Ferla, Noeli Juarez text Zootaxa 2014 3814 4 495 511 journal article 45522 10.11646/zootaxa.3814.4.3 b1c0a4d9-3b72-496e-846b-c05dd2f6d96a 1175-5326 229706 670FF8E1-49C6-4D36-8981-1242C18360E3 Tydeus riopardensis sp. nov. Silva, Cunha & Ferla ( Fig. 5 A–B) Female (n = 2). Dimensions: length of idiosoma 230 244 (230–257) and width 166 183 (166–200). Dorsum ( Fig. 5 A)—Prodorsum recurved, 12 pairs of smooth dorsal setae, trichobothrium whip-like, smooth, longer than setae. Striation type “ Tydeus ” ( Kaźmierski 1998b ). Setal measurements as follows: ro 13 12 (11–13), la 15 14 (13–15), bo 27 27 (26–27), ex 11 11 (11), c 1 12 10 (8–12), c 2 12 12 (12), d 1 12 11 (10–12), e 1 10 11 (10–11), f 1 11 11 (11), f 2 14 12 (11–14), h 1 11 10 (10–11), h 2 11 12 (11–12), ps 1 12 12 (12–13). Body covered with striation. Venter ( Fig. 5 B)—Anogenital area with four pairs of genital, four pairs of aggenital setae and setae ps 2 in anal region 12 12 (12). Epimeral formula: 3-1-4-2. Gnathosoma —Setal count of palp (tarsus –genu): 5-2-2, tarsus with seta p' ζ T-shaped distally. Cheliceral stilettos length 12 12 (12–13); length of palp 48 49 (48–50). Legs —Length of legs I–IV as follows: leg I 120 122 (120–123), leg II 82 86 (82–90), leg III 106 108 (106–110) and leg IV 118 124 (118–130). All legs with two claws and a hairy empodium, empodial hooks absent. Solenidion (ωI) on tarsus I short, slender, shorter than half width of tarsus. Tarsus I with ft' slightly longer than ft'' . Leg setal formulae as follows (tarsus—coxae): Leg I: 8 (1ω)-3-3-3-1; Leg II: 6(1ω)-2-2-2-0; Leg III: 5-2-1-1-1; Leg IV: 5-2-1-1-0. Male: Not found. Differential diagnosis. This new species resembles Tydeus quadrisetosus ( Schiess, 1981 ) by having short dorsal setae, not reaching to the base of the setae next behind, and four genital setae. Tydeus quadrisetosus differs from the new species by a having furrow at the level of f1–f2 , setae sci much longer, and a more slender idiosoma. Etymology. The new species was named for the Rio Pardo Valley where it was collected. Material examined. Brazil : One holotype female and one female paratype collected from Vitis labrusca, Bordeaux variety, Boqueirão do Leão County, State of Rio Grande do Sul, 17/IX/2006 , coll. Diel, F. Deposited at Museu de Ciências Naturais, UNIVATES - Centro Universitário, Lajeado, Rio Grande do Sul State, Brazil .