Mon, May 11, 2009 at 1:47 AM
Found this on my lily plant leaf. Would like to know about it, especially if it is harmful to my garden and greenhouse plants.
This is a Lily Leaf Beetle, Lilioceris lilii. This beetle is native to Europe and has recently been introduced into parts of North America. The larvae and adults feed on the leaves of true lilies, and can become so numerous they become a pest. BugGuide has a nice dialog about the Lily Leaf Beetle, including one person calling them the “scourge of Cambridge” and others recommending using black pepper to control their numbers.