We present the first data on haemosporidian parasites in the poorly studied semi-collared flycatcher. More than 40 different lineages poridian parasites(genera Plasmodium and Haemoproteus) have been registered so far in the genus Ficedula(Muscicapidae) (MalAvi Da tabase, Fig. 2.). To date most of them(37 cyt b lineages) were found in two closely related species the collared flycatcher(Ficedula albicollis) and the pied flycatcher(F hypoleuca). In our study of semi-collared fly catchers, we have found six distinctive cyt b lineages present in the blood, three of which(hCOLL2. hCOLL3 and pGRwo9) have been regis- tered in all of the black-and-white flycatchers(Fig. 2.). The lineages hCOLL2(Haemoproteus pallidus) and hCOLL3(H balmorali)show differ- ent host-specific preferences. According to the accumulated informa tion in MalAvi Database, the lineage hCOLL2 has been detected in multiple host species, while hCOLL3 is clearly specific to flycatchers The morphospecies Haemoproteus pallidus and H. balmorali are also rec ognized as species commonly infecting birds ofthe family Muscicapidae 131. For two of the lineages, i e. pWW3 of Plasmodium sp. and hccF2 of Haemoproteus sp., these are the first records in the family Muscicapidae. The lineage pWW3 has been recorded in many resident African bird species, which suggests that semi-collared flycatchers may have be come infected by this parasite in their non-breeding areas in Eastern Central Africa around the East African Rift 120]. On the contrary, the lin eage hCCF2 may have been transmitted to the semi-collared flycatchers