The tenth 節気 “sekki” division of the traditional Japanese calendar is:
夏至
(げし)
“geshi”
summer solstice
The third and final “kō” microseason within this division is:
半夏生
(はんげ しょうず)
“hange shōzu”
Crow-dipper sprouts
That makes 半夏生 the thirtieth microseason of the year!
It typically lasts 2~6 July.
Click here to learn about this subseries
Image credit: Wikipedia.