O que é tetrachætous? tetrachætous é tetrachætous
O que é tetrachætous?
- Having the haustellum composed of four (not of two or six) pieces, as a fly; of or pertaining to that division of brachycerous dipterous insects whose haustellum is of this character: correlated with dichætous and hexachætous. See cuts under Syrphus and Milesia.