The Order of Virgins and the Order of Hermits were both brought back by the 1983 Code of Canon Law. Canon 603 deals with the hermits, and I’m wanting to say that Canon 604 deals with the Consecrated Virgins.
CVs are consecrated, meaning the bishop recites the formula of consecration over the woman – or women – who are dressed as brides. The CVs are the original Brides of Christ, hence the dress. They are considered consecrated-virgins-living-in-the-world. The current practice is to consecrate women 25 and older because of the permanence of the Vocations. One must be a physical virgin to be consecrated. Rape victims, if they have been chaste afterwards, are still considered virgins by the church.
Canonical eremites, OTOH, draw up their own plan of life, which they live for a period of time, and go through temporary vows, similar to religious. When everything is in place, meaning the hermit-elect meets certain criteria, the hermit will kneel before the bishop, and placing their hands within the Bishop’s, will pronounce their vows.
Hermits are considered their own charism. They are permitted to develop a habit. And, as in the early days of the church, they might even attract adherents. This happened in the case of the Laura in Chester, NJ.
Both might be an option for older vocations.
The two are separate Vocations, but I did know of a Consecrated Virgin who became a canonical hermit, and offered retreat services. She was also a Secular Franciscan, but I’m not sure if she was already one, or if she became one after her Eremitical vows.
The two Vocations also answer to their bishop.
There’s also the option of lay contemplative. The person has their own plan of life, and can design a habit, and submit their information to the local Ordinary. The bishop, in turn, if he approves, will issue a letter recognizing the person as a lay contemplative.