Towards identification of the scale insects (Hemiptera: Coccomorpha) of continental Africa: 2. Checklists and keys to six archaeococcoid families Author Watson, Gillian W. text Zootaxa 2022 2022-03-04 5105 3 301 356 journal article 20341 10.11646/zootaxa.5105.3.1 797fca93-60bf-40ce-bb55-e5cb695f6356 1175-5326 6332761 187B04D7-4C35-4E27-9B2D-A616BF59F380 Genus Orthezia Bosc d’Antic Orthezia is a genus of 23 species that occurs worldwide, but most of them are of Nearctic or Neotropical origin ( García Morales et al . 2016 ). They can occur in high densities on stems and leaves; colonies are conspicuous and may be associated with sooty mould ( Kawai 1980 ). The only widespread, polyphagous and economically important species is O. urticae , a Palaearctic species that occurs in North Africa ( Kawai 1980 ). Key to species of Orthezia in continental Africa, based on Kozár (2004) 1(0) Antennal segments III, IV, VII and VIII each with a fleshy sensory seta. Anterior part of ovisac band containing multilocular disc pores amongst the spines................................................................... maroccana - Only antennal segments VII and VIII each with a fleshy sensory seta. Anterior part of ovisac band without any multilocular disc pores amongst the spines................................................................... urticae ( Fig. 26 )