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 Praelongorthezia Kozár This is a Neotropical genus of 23 species that feed on aerial plant parts ( Kozár 2004 ; García Morales et al . 2016 ). A single species, Praelongorthezia praelonga ( Fig. 25 ), has spread to other parts of the world including Africa ( Kondo et al. 2013 ). It is polyphagous and the sooty mould associated with infestations can be an unsightly problem on ornamental shrubs and trees. Praelongorthezia praelonga is particularly known as a pest of citrus but can attack coffee. It has been recorded from several West African countries ( Kondo et al. 2013 ) and is extending its geographical range. In life, the entire dorsum is covered by white wax plates, whereas Insignorthezia insignis has dorsal areas of bare dark green cuticle ( Kondo et al. 2013 ).