Rose-seed Megastigmus are chalcid wasps that infest rose seeds. The wasp's larvae overwinter within some rose hips. Sometimes the attractive rose hips are gathered (for decorative or medicinal purposes) from multiflora rose bushes and the overwintering larvae are unsuspectingly brought into the house where warm temperatures cause the tiny wasps to emerge earlier than normal.My daughter incorporated some rose hips into some Christmas wreaths she made. One of the wreaths decorates her dresser. Another wreath was a gift which her Grandma received.
After the wasps emerge they are often found by the windows or hanging around on the rose hips. There is something about bugs crawling around in the house during the winter that just doesn't seem right.
|One of the "bugs" hatched from rose hips|
|Rose seed Megastigmus|
|Megastigmus - Rose-seed wasp|
Another remarkable thing about their life cycle is their dispersal method. Some studies show the wasp's larvae are digestive-resistant and survive the gut passage of vertebrates. Interesting way to get delivered to different locations, eh?
If you have rose hips decorations at your house, you may have some unintended visitors when the overwintering rose seed wasp larvae begin to hatch.
|Tiny wasp on a rose hip|
Just now my daughter looked over my shoulder and said, "Ewww, that's gross!" 'cause she has also eaten some rose hips.
If it is any consolation, maybe the wasp's larvae are high in Vitamin C... though that's almost as bad as the thought of something "buggy" in your cupboards.