AUGH! That sneak, it didn't even occur to me that he might decide the First Day of Fall would be a great time to drop a couple of eggs, because it's MID WEEK! They look to only be dropping in Coast, Forest and Jungle right now, ... and have dimorphic sprites in both hatchling and adult? We'll see when TJ's grow up.
From Forest, This egg shakes slightly when taken out of the light.
And from Coast and Jungle, You hear a soft melody as you approach this egg.