In Japan, the adults appear on the leaves of the host from the end of May to the beginning of June. During this time females lay eggs. Locally the mites may spread from leaf to leaf and from plant to plant. Also they may spread incidentally on other organisms or on leaves blown by the wind, or perhaps by air drift alone. Male specimens are required to confirm the identity of this mite to species for its distinct genitalia.
Eggs are spherical, and pale yellow.
The immature mite is yellow or greenish. It is carmine during hibernation. The body from above is elliptical, about 510 m long and 360 m wide. Dorsal transverse integumental striations continue on the posterior part of the body, between all dorsocentral body setae. Legs are shorter than the body, and robust.