Morphology and identification of Chrysops larvae from Nigeria

Mature larvae of four Afrotropical species of Chrysops (Diptera: Tabanidae): C. centurionis Austen, C. distinctipennis Austen, C. longicornis Macquart and C. silaceus Austen, are described and illustrated from specimens collected in Nigeria, identified by rearing associated adult flies. The descriptions pay special attention to the value of ultrastructural characters, such as cuticular striations, observed by scanning electron microscopy (SEM).