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Excited-state OH maser emission has previously been reported in thecircumstellar envelopes of only two evolved stars: the Mira star AU Geminorumand the hypergiant NML Cygni. We present Very Large Array (VLA) observations ofthe 1665, 1667, and excited-state 4750 MHz mainline OH transitions in AU Gemand Expanded Very Large Array (EVLA) observations of the excited-state 6030 and6035 MHz OH mainline transitions in NML Cyg. We detect masers in both mainlinetransitions in AU Gem but no excited-state emission in either star. We concludethat the excited-state OH emission in AU Gem is either a transient phenomenon(such as for NML Cyg outlined below), or possibly an artifact in the data, andthat the excited state OH emission in NML Cyg was generated by an episode ofenhanced shock between the stellar mass-loss and an outflow of the Cyg OB2association. With these single exceptions, it therefore appears thatexcited-state OH emission indeed should not be predicted nor observable inevolved stars as part of their normal structure or evolution.

Excited-state OH Mainline Masers in AU Geminorum and NML Cygni