Acanthococcus SIGNORET, 1875

Szita, É., Benedicty, Zs., Kozár, F. & P. O, 2011, Description Of A New Species Of Acanthococcus (Hemiptera: Coccoidea: Eriococcidae) From Austria, Acta Zoologica Academiae Scientiarum Hungaricae 57 (1), pp. 35-41 : 36

Genus Acanthococcus SIGNORET, 1875

Type species: Acanthococcus aceris SIGNORET, 1875 .

Generic diagnosis – Ovisac ovoid, completely encloses female body. Adult female elongate-oval, with anal lobes conical and normally heavily sclerotized; antennae 6-, 7-, rarely 8-segmented; labium 3-segmented, with 16 setae (of these 10 on apical segment); legs well-developed, coxa often with translucent sensory pores, claw usually with a denticle; spiracles often with a few associated disc pores; disc pores on venter only, most usually quinquelocular, but the number of loculi vary between 3 to 9; oval disc pores (or cruciform pores) absent from dorsum, but often on prosomal venter in a marginal band; tubular ducts of 2 types: micro- and macrotubular ducts; microtubular ducts ca 7 µm long and 2 µm wide, scattered or form transverse rows or bands on dorsum, often associated with dorsal conical setae; macrotubular ducts often of 2 sizes, usually form transverse rows or bands on body surfaces; enlarged conical setae normally present at least in dorsal margin, but often on entire dorsum where they form transverse bands or rows; hairlike setae on venter only; anal ring well developed, sclerotized with partly double row of pores and 8, rarely 6, anal ring setae, latter often as long as apical seta on anal lobes; each anal lobe with a long apical seta and usually with 3 short dorsal conical setae, seldom with more, but at least with 2, ventral hairlike setae also present ( BORCHSENIUS 1949, HODGSON & MILLER 2010, KOSZTARAB & KOZÁR 1988, KOZÁR & KONCZNÉ BENEDICTY 2008).