Conversation so far:
do spotted lantern flies die in the winter
While adult spotted lanternflies do not survive the winter, the same does not hold true for their egg masses, which are hardy enough to withstand brutal weather conditions.
when do the spotted lantern flies eggs hatch?
Spotted lanternfly eggs from the winter hatch in late spring, revealing nymphs with black and white spots.

Question: what do the insects look like at adulthood?
Self-contained rewrite: what do the spotted lantern flies look like at adulthood?