The purpose of these articles is to help park visitors notice, learn about and enjoy what's happening outside at Cromwell Valley Park, a beautiful Baltimore County park in Parkville, MD. Many of our topics are suggested by park visitors, so if you have a question, observation or comment, please contact a park naturalist at justine@cromwellvalleypark.org.

Thursday, June 2, 2011

Happy Birthday, Li'l Luna!

Luna caterpillar emerging from egg. J. Schaeffer
Last week we received a bunch of luna moth eggs from a local entomologist, each no bigger than the head of a pin.  The caterpillars have started to emerge.  This morning we were able to capture one's first few seconds of life as a caterpillar, just after eating its way out of the shell with its impressive mandibles.  This tiny guy, about one-eighth inch in length, will grow, over the next 4-5 weeks, to a length of 3-4 inches.  That would be like your average 20 inch baby growing to a super-sized 40 feet!  That size, plus the impressive lime green color, make these mature caterpillars true incredible hulks.

We'll be raising some again this year, feeding them their favorite food--sweetgum leaves.  A LOT of sweetgum leaves!  Check back with Naturalist's News, or stop by the nature center to check on their progress.