They can vary in design from tubes to hoppers and trays. Other parasitic larvae are known to prey upon cicadas and leaf hoppers. These are mostly hoppers and tank cars. The "tunnels" gave access to nesting boxes, food hoppers, and water dispensers. Other short excavations discovered other debris, including bogies from the hoppers. From the storage hoppers, the green beans are conveyed to the roaster. IBM collators had two input hoppers and four output pockets. Plant hoppers (Fulgoridae) and scale insects feed on plant sap and may cause subsequent death. Only Whitey's Lindy Hoppers could dance and work routines there. Hip hoppers shooters don't do that. A few are parasitic on cicadas or leaf hoppers (Epipyropidae). The Savoy had the constant presence the best Lindy Hoppers, known as "Savoy Lindy Hoppers". Each train consist of 21 coal hoppers. Mischa Auer, Shemp Howard, Slim and Slam, and Whitey's Lindy Hoppers. Miller rejoined Whitey's Lindy Hoppers in 1938.