Midinfrared spectra of the formyl cation, HCO+, were recorded by direct absorption in a glow discharge (composition CO, 50 mTorr; H-2, 50 mTorr; He, 7 Torr) using a color center laser spectrometer and velocity modulation with heterodyne detection. The bands measured were 10(0)0-00(0)0, 11(1)0-01(1)0, 12(0)0-02(0)0, 12(2)0-02(2)0, 10(0)1-00(0)1, 11(1)1-01(1)1, 20(0)0-10(0)0, and 10(0)2-00(0)2. These bands were analyzed and fitted together with all other available rotationally resolved spectra to arrive at a new set of spectroscopic constants for HCO+. The relative intensities were fit to obtain a rotational temperature, T-rot = 434 +/- 7 K, and vibrational temperatures for each mode, T-1 = 3300 +/- 240 K, T-2 = 841 +/- 15 K, and T-3 = 3157 +/- 68 K.