A new hot band spectrum of ethylene has been recorded from 2970 to 3015 cm 01 at low rotational temperatures in a seeded molecular jet, using vibrational energy transfer from SF 6 to C 2 H 4 . An IR-IR double resonance technique has been applied to pump the lower states and subsequently probe the hot bands. Two new hot bands, n 10 / n 11 0 n 10 and n 7 / n 11 0 n 7 , have been found. The weak hot band starting from n 7 has been identified by direct labeling of some rotational levels in the n 7 manifold. High resolution FTIR spectra at ambient and at elevated temperatures have been recorded, too; it has thus become possible to extend the analysis to higher rotational quantum numbers. The previously analyzed n 9 / n 10 level has been reinvestigated and a b-type Coriolis interaction with the nearby n 7 / n 11 state has been observed. Rotational energy levels of n 7 / n 11 and of n 9 / n 10 have been fitted simultaneously, taking into account the local perturbations due to five dark states. From the shift of all K x 0 levels to higher frequencies in the n 10 / n 11 state, a global a-type Coriolis interaction with n 8 / 2n 12 has been identified.