Section 22.1.1.1.1 has the following listed in Table 51: ctype<char> , ctype<wchar_t>.

Also Section [locale.ctype] says:

The instantiations required in Table 51 (22.1.1.1.1) namely ctype<char> and ctype<wchar_t> , implement character classing appropriate to the implementation's native character set.

However, Section [facet.ctype.special] only has a detailed description of the ctype<char> specialization, not the ctype<wchar_t> specialization.