After several molts , it is found by certain kinds of ants , which stroke a honey gland on the back of the caterpillar , yielding a sweet fluid .
The above sentence is very complicated. Please provide me a simplified synonymous version consisting of multiple sentences:
After a few moults , certain species of ants take care of it . These stimulate a "nodular gland" on the back of the caterpillar in order to get to grips with the escaping sweet liquid .