An interpretation of the low-lying dissociative attachment bands in CS2 is attempted with the help of the combined application of fragment anion mass spectrometry with ion kinetic energy analysis, electron transmission spectroscopy and electron energy loss spectroscopy. Dissociative attachment bands at 3.35, 3.65, 6.2 and 7.8 eV were found, in agreement with earlier measurements. The ion kinetic energies were found to be nearly zero at all four bands. The onset of the 3.35 eV peak was found to be very gradual, with a weak signal extending down to 2.55 eV, which is in close proximity to the dissociation threshold at 2.41 eV. The transmission spectrum shows evidence of a 2 Sigma g shape resonance at 4.2 eV, in addition to the previously reported 2 Pi u resonance at 1.8 eV. The energy loss spectra reveal three low-lying structured valence bands with maxima at 3.31, 3.63 and 3.90 eV. The energy dependence of the excitation of these bands shows a stepwise onset and two broad bands at 4.8 and 5.6 eV, tentatively assigned as the ( pi )3( pi *)22 Phi and 2 Pi u core-excited shape resonances. Based on these experimental results it is suggested that the 3.35 and 3.65 eV S-/CS2 peaks are caused by dissociation or predissociation of negative-ion states in which an electron is loosely bound by the low-lying valence excited states of CS2, on potential energy curves that nearly coincide with those of the parent states in the Franck-Condon region.