This Nigma walckenaeri spider builds its mesh web on the surface of a leaf; it just needs a curved surface, so it can create a tiny hideout for itself in your garden. Other spider species create webs called the bowl-and-doily: A bowl-shaped web is suspended from plant stems and anchored on the bottom to a horizontal sheet (the doily). Insects flying past bump into a thread and fall into the bowl, where they’re eaten by the spider.