Megapeostus sp.

Megapeostus Carriker, 1936: 141 (Type species: Megapeostus asymmetricus Carriker, 1936, by original designation). Megapeostus contains 13 species, eleven of them parasitic on birds of the genus Crypturellus and only two on Tinamus species.

Material examined: 1♀ (MZUSP #3232), Roteiro (09°50'S; 35°58'W), Alagoas, Brazil, Nov. 1978, P.M. Nardelli coll. (W.C.A. Bokermann leg.).

Remarks: This female was thoroughly compared with Megapeostus asymmetricus Carriker, 1936 and M. fuscus Clay, 1937 . These two species and this female have 3–4 long spiniform setae on each side of the vulvar margin. However, this female differs from those species by the shape of its inner-ventral pleural setae on segments IV–VII being longer and thinner than in the two species, and by the outline of its vulvar margin being roughly convex and U-shaped, while it is W-shaped in the two mentioned species. This female may belong to an undescribed species, and T. solitarius pernambucensis maybe its true host, but more material from free living birds is essential to reach a definite conclusion about its identity.