Megacraspedus sematacma is a moth of the family Gelechiidae.
The forewings are pale brownish ochreous, more or less sprinkled irregularly with dark fuscous scales and the costa suffused with whitish from the base to beyond the middle.
The stigmata are black, with the plical obliquely beyond the first discal and with a faint pale acutely-angulated subterminal line.
There is an elongate slightly curved black apical mark on the costa, one or two black dots before it, and two or three on the termen.
This article on a moth of the genus Megacraspedus is a stub.