|Galls on an oak tree. Probably mealy oak gall (Disholcapsis cinerosa).|
Gall wasps (Cnipidae) are the creatures that create the little brown orbs hanging in your oak trees. These cryptic creatures spend most of their lives as grubs. Adults are the size of a fruit fly and live about a week. They emerge, mate (every other generation), and then oviposit their eggs in stems, leaves, and twigs of oak trees all within that brief window. Note I didn't say "eat". Adult gall wasps don't eat- they live entirely of the plant matter they consumed as grubs inside their gall. They alternate generations between asexual females (who live in one type of gall), and sexually reproducing males and females (who live in another).
|Another type of gall. Possibly Belonocnema kinseyi.|
|A closer look at possible B. kinseyi galls.|