What type of insect made this?

Asked October 4, 2017, 12:34 PM EDT

I found these tiny cacoons inside the finger of a glove. They had to have been made fairly recently. There are two tiny capsules rolled in leaves they are about 1/4 inch long each and the size of a pencil eraser in circumference. They were placed together in a larger leaf that was rolled around them, that is how I found them but through handling the outer leaf broke apart and that's when I noticed the two smaller cacoons inside. I am just really curious as to what they are and can't seem to find anything that describes them on my own. If anyone there in the entomology dept. would be able to answer I would appreciate it. I've added pictures. Thank you

Harrison County Iowa insect identification leafcutter bees

2 Responses

Dear Client,

Such an unusual find! The insects inhabiting your glove are known as leafcutting bees in the family Magachilidae. These solitary bees are known for making circular or semi-circular holes in plant leaves. They then glue several of these discs as liners for their nests. They will fill the nests with pollen and lay a single egg in each nest. Each egg hatches into a grub that feeds on and matures on the pollen. They typically create their nests in soil, rotten wood, under bark and even in the stems of certain plants with hallow stems.

https://hortnews.extension.iastate.edu/leafcutter-bees

https://en.wikipedia.org/wiki/Megachilidae

Hope this helps.

Thank you so much for your response and for including the links so I can learn more about this bee. Very helpful!
Best regards,
Diana