Well, insect photography is micro in Nikon's terminology (though referred to as macro generally) You may also hear that macro means photos where the subject appears at life size (1:1) or greater, while micro ought to mean significantly greater magnification, but in practice the words just aren't used consistently. The terminology is essentially arbitrary. Macro really means big and micro means small. Thus micro photography means photographing very small things, and macro photography means making small things look big.

You just have to put up with it, I'm afraid.