Brachytydeus formosa ( Cooreman, 1958 )

Silva, Guilherme Liberato Da, Cunha, Uemerson Silva Da, Rocha, Matheus Dos Santos, Panou, Eleni N. & Ferla, Noeli Juarez, 2014, 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, Zootaxa 3814 (4), pp. 495-511 : 500

Brachytydeus formosa ( Cooreman, 1958)

Brachytydeus formosa André, 2005: 975 –1001; Thor, 1931: 102. Lorryia formosa Cooreman, 1958:7

Female (n = 4). Dimensions: length of idiosoma 260 (258–263) and width 200 (195–205).

Dorsum —Prodorsum recurved, 11 pairs of smooth, spatulate dorsal setae, trichobothrium whip-like, smooth. Setal measurements as follows: ro 15 (14–16), la 15 (14–16), bo 28 (26–30), ex 14 (13–16), c1 19 (18–20), c2 19 (18–20), d1 22 (20–24), e1 18 (16–20), f1 16 (16–18), f2 19 (17–21), h1 21 (20–23), h2 18 (17–20), ps1 15 (15–16) on ventral side and ps2 14 (13–14). Dorsal reticulation forming discrete areas divided by striae.

Venter —Anogenital area not visible. Epimeral formula: 3-1-4-2

Gnathosoma —Setal pattern of palp (tarsus–genu): 5-2-2, tarsus seta p' ζ T-shaped distally. Cheliceral stilettos length 15; length of palp 50.

Legs —Length of legs I–IV as follows: leg I 115 (110–120), leg II 88, leg III 107 and leg IV 112. All legs with two claws and a hairy empodium, empodial hooks absent. Solenidion (ωI) on tarsus I short and slender, shorter than half width of tarsus. Tarsus I with ft' subequal with ft''. Leg setal formulae as follows (tarsus–trochanter): Leg I: 8 (1ω)-3-3-3-1; Leg II: 6(1ω)-2-2-3-1; Leg III: 5-2-1-2-1; Leg IV: 5-2-1-1-0.

Male: Not found.

Material examined— Brazil: Four females collected from Bordeaux variety ( Vitis labrusca ), Boqueirão do Leão County, State of Rio Grande do Sul, 30/I/2007, coll. Horn, T.B. Deposited at Museu de Ciências Naturais, UNIVATES - Centro Universitário, Lajeado, Rio Grande do Sul State, Brazil.

Distribution. This species was previously recorded from the state of Rio Grande do Sul, Brazil ( Eichelberger et al. 2011; Johann et al. 2009; Klock et al. 2011).