Adam Kranz@adam_kranz

Replying to @emptyrivers

@tiny_rivers @hankgreen Yep, these are the agamic generation galls of the cynipid wasp Acraspis quercushirta on bur oak. Agamic galls each contain a female wasp which will emerge in the fall and lay eggs in buds that produce male and female wasps in a totally different gall https://t.co/jS0Z5NKoYF