Closely related to A. bradfieldi, A. berliozi and A. pallidus. Has been considered conspecific with A. barbatus, A. apus and also with A. niansae and A. unicolor. Differs from geographically closest race serlei of A. barbatus (with which it was lumped in HBW) in its much-reduced amount of white on throat (2); glossy black of mantle with blue reflections vs glossy sooty black (2); more emarginate outer rectrix in barbatus (sensu lato)#R (1). While a total score of 5 is insufficient to establish the form unequivocally as a species under the criteria used herein, it is relatively high for a swift, and there remains the evidence of apparent or virtual sympatry with serlei#R, so that treatment as a full species pending further discoveries appears, on balance, the marginally better choice. Monotypic.
SE Nigeria, W Cameroon (Mt Kupe) and W Angola; possibly N Liberia. Old records from Bioko.
Food and feeding
Status and conservation
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