Nemacerota sejilaa is a moth in the family Drepanidae. It was described by Zhao-Hui Pan, Gábor Ronkay, László Ronkay and Hui-Lin Han in 2014. It is found in Tibet, China.
The wingspan is 42âÂÂ46 mm. Adults are on wing from late July to late August.
The species name refers to Mt. Sejila, the type locality.