Three new species ofBaetodesNeedham & Murphy (Ephemeroptera: Baetidae) from Espírito Santo State, Brazil

Three new species of Baetodes Needham & Murphy are described and illustrated based on nymphs from Espírito Santo State, Brazil. These new species have a single coxal gill and tubercles on metanotum and abdominal segments I–IX. The main characteristics that can be used to distinguish them from other species of genus are presented. Baetodes capixaba sp. nov.: labrum with subapical row of 1 + 4 setae, tubercle on metanotum as long as first abdominal tubercle, and abdominal gills oblong; B. iuaquita sp. nov., labrum expanded laterally with subapical row of 12–13 setae, outer margin of mandibles slightly convex with a depression near base of incisors, incisors curved, tubercle on metanotum half the length of first abdominal tubercle, and abdominal gills subrectangular; B. proscolus sp. nov.: tubercle on pronotum, tubercle on metanotum nearly one half the length of first abdominal tubercle, abdominal gills with inner margin curved and outer margin straight.