  We present THERMAP, a mid-infrared (8-16 {\mu}m) spectro-imager for space
missions to small bodies in the inner solar system, developed in the framework
of the MarcoPolo-R asteroid sample return mission. THERMAP is very well suited
to characterize the surface thermal environment of a NEO and to map its surface
composition. The instrument has two channels, one for imaging and one for
spectroscopy: it is both a thermal camera with full 2D imaging capabilities and
a slit spectrometer. THERMAP takes advantage of the recent technological
developments of uncooled microbolometers detectors, sensitive in the
mid-infrared spectral range. THERMAP can acquire thermal images (8-18 {\mu}m)
of the surface and perform absolute temperature measurements with a precision
better than 3.5 K above 200 K. THERMAP can acquire mid-infrared spectra (8-16
{\mu}m) of the surface with a spectral resolution {\Delta}{\lambda} of 0.3
{\mu}m. For surface temperatures above 350 K, spectra have a signal-to-noise
ratio >60 in the spectral range 9-13 {\mu}m where most emission features occur.
