Leonardi, 1897a
Appearance in life
Scale cover of adult female circular to elongate-oval, usually white, with brown exuviae on anterior end; ventral scale as well developed as the dorsal part. Scale cover of immature male similar to that of female but smaller, elongate and very narrow. ODONAL.jpg
Morphology
ODONGD.jpg
Adult female not pupillarial; body circular to oval, pygidium sclerotized, to some degree also lateral areas of derm on prepygidial abdominal segments and even thorax. Pygidium triangular, usually bearing a single median lobe at the apex and without any invaginated tubes; pygidial margin with or without internal intersegmental scleroses (usually with). Anus situated near centre of, or slightly anterior to centre of pygidium; vulva not always situated at same level as anus. One to four sizes of ducts present, often indistinctly 1- or 2-barred, scattered on both surfaces of the pygidium and on lateral areas of the body. Preygidium with or without duct tubercles. Perivulvar pores present or absent; stigmatic disc pores present by anterior and sometimes posterior spiracles. Antennae each situated on flat derm, well anterior to anterior ridge of clypeolabral shield; intersegmental folds present, sclerotized in comb-like series of spicules; crenulae present on venter of abdomen; circular striation of marginal and submarginal areas of head and thorax without cuticular projections.