Four subfamilies are placed here according to the Phasmid Study Group. The re-established Lonchodidae, placed as a subfamily in the Diapheromeridae in older treatments, now contain the Lonchodinae and the Necrosciinae. The Palophinae are the smallest subfamily by far and not particularly diverse. The other two subfamilies, with 3 tribes each, contain the highest diversity of Diapheromeridae.
The subfamilies are now: