Sixteen new species of Agrilus Curtis, 1825 from East Africa (Coleoptera, Buprestidae)

Sixteen new species of Agrilus Curtis, 1825 from East Africa (Coleoptera: Buprestidae): Agrilus (Agrilus) cteniasformis, sp. n., Agrilus (Agrilus) gueorguievi, sp. n., Agrilus (Agrilus) kinuthiae, sp. n., Agrilus (Agrilus) ljubomirovi, sp. n., Agrilus (Agrilus) njugunae, sp. n., Agrilus (Agrilus) polinae, sp. n., Agrilus (Duttus) delchevi, sp. n., Agrilus (Paralophotus) gordoni, sp. n. Agrilus (Paralophotus) jiloi, sp. n., Agrilus (Paralophotus) pavlinae, sp. n., Agrilus (Paralophotus) penevi, sp. n. Agrilus (Paralophotus) popovi, sp. n., Agrilus (Paralophotus) semerdjievi, sp. n., Agrilus (Paralophotus) tsavoensis, sp. n. from Kenya; Agrilus (Agrilus) novaki, sp. n. from Tanzania; Agrilus (Robertius) mungaii, sp. n. from Uganda are described, illustrated and compared with related species