If Steve has enough food, then he usually will not eat another pupae (chrysalis). But, if Steve isn't careful and silks across Leroy's pupae (chrysalis) (they lay silk down wherever they go), then Leroy's skin could get caught on the extra silk and Leroy may not be able to pupate. This doesn't happen too often, but it is a possibility.
Herndon, VA (USA)
Take care of the small things....