On the biology of the bird parasite Neottiophilum praeustum (Meigen, 1826) (Diptera, Neottiophilidae)

Resumo

The first data on blood-sucking ectoparasitic larvae of Neottiophilum praeustum (Meig.) which develop in bird nests are presented in Russia, with the fieldfare Turdus pilaris L. as a host example. Larval development takes not more than 10–12 days but no puparia are formed until late autumn. The larvae of Neottiophilum resemble those of calliphorid flies both in body structure and life mode. The main diagnostic characters of Neottiophilum larvae distinguishing them from calliphorid ones are the spiracular disk of the posterior spiracles being positioned dorsal rather than ventral to the stigmal plate and lying outside rather than inside its peritreme. In addition, the anterior spiracles have 14–15, rather than 3–8 spiracular chambers.