Silk Button Galls!
Every year they appear I am fascinated by these amazing little galls! They take their name from the fact that they look like little buttons woven from golden threads! These beautiful looking little galls are made by the asexual generation of the wasp Neuroterus numismalis.
Silk Button Galls are abundant on the underside of the Oak leaves and can reach 3 mm across. They contain the agamic generation of the Silk Button Gall Wasp (Neuroterus numismalis) and look like a thick, rolled edge disk with a deep central pit and gold hairs, there is no mark on the top of the leaf. The galls are a single cell gall holding one wasp and can be seen from August to October, until the leaves fall in autumn. The wasp larva will mature in August but remain in the gall on the ground throughout the winter, emerging the following year from February to April.
Silk Button Galls!
Every year they appear I am fascinated by these amazing little galls! They take their name from the fact that they look like little buttons woven from golden threads! These beautiful looking little galls are made by the asexual generation of the wasp Neuroterus numismalis.
Silk Button Galls are abundant on the underside of the Oak leaves and can reach 3 mm across. They contain the agamic generation of the Silk Button Gall Wasp (Neuroterus numismalis) and look like a thick, rolled edge disk with a deep central pit and gold hairs, there is no mark on the top of the leaf. The galls are a single cell gall holding one wasp and can be seen from August to October, until the leaves fall in autumn. The wasp larva will mature in August but remain in the gall on the ground throughout the winter, emerging the following year from February to April.