All detected species in planets with T_eq > 1000 K, whose atmospheres (day- and nightside) have been studied using ground- and space-based telescopes. The atoms, ions, and molecules are shown in the vertical axis against planet temperature. Circles represent species detected using ground-based telescopes, and stars using space-based telescopes. Light-blue symbols show detections using UV observations, dark-blue symbols correspond to visible observations, and orange symbols correspond to near-IR observations. Each vertical grey line represents a planet whose atmosphere has been explored. The dashed red line marks T_eq = 2150 K. The positions of the 6 UHJs studied in this paper are labeled and marked with solid vertical lines – 1: KELT-7b, 2: KELT-21b, 3: KELT-17b, 4: HAT-P-57b, 5: MASCARA-1b, 6: WASP-189b. Finally, the red circles indicate the new detections reported in this work. Data are taken from the ExoAtmospheres database.