Moegistorhynchus longirostris

Moegistorhynchus longirostris is a keystone species of fly that lives on the west coast of South Africa.

Anatomy
M. longirostris has a very long proboscis that is believed to be the product of an evolutionary arms race between pollinating insects and long-tubed flowers.

Ecology
The species pollinates, partly or exclusively, at least 20 species of Iridaceae (such as Lapeirousia anceps), Geraniaceae, and Orchidaceae.