Setting the records straight II: “single spermatheca” of Braula coeca (Diptera: Braulidae) is really the ventral receptacle

Braula coeca has been reported repeatedly, but incorrectly, to have only a single spermatheca—an extremely rare condition in the higher flies. This error is based on the misinterpretation of the ventral receptacle as a single spermatheca combined with the failure to detect the two present but largely reduced dorsal spermathecae. This misconception is of importance, e. g., for correct character coding in phylogenetic analyses and in the context...