Hypopi (Acari: Hypoderatidae) from the roseate spoonbill (Aves: Ciconiiformes; Threskiornithidae)

A new species and additional host records for 4 other species of quiescent deutonymphs (hypopi) of mites of the family Hypoderatidae are described from the subcutaneous adipose tissues of a roseate spoonbill, Ajaia ajaja L., in Florida. The hypopus of Phalacrodectes parvus n. sp. most closely resembles that of P. platalea Pence & Duncan from the African spoonbill, Platalea alba Scopali, in idiosomatic chaetotaxy and structure of the genital apparatus. It differs from this and other species of the genus in the shape of the idiosoma, pattern and density of idiosomatic sclerotization, the unique posterior extension of secondary sclerotization from the perigenital area, large size and more posterior location of genital seta gm, and small size and sharp-tipped spinelike structure of seta hT on tibia II. In addition to the new species, this roseate spoonbill also was infected with P. whartoni Fain and 3 other less common species of hypoderatid deutonymphs. A key to the deutonymphs of species in the genus Phalacrodectes is presented.