the singular of hastati, a class of infantry in the armies of the early Roman Republic who originally fought as spearmen Species Latin names A. hastatus Amphineurus hastatus, Alexander, 1925, a crane fly species in the genus Amphineurus D. hastatus Dendryphantes hastatus, Clerck, 1757, a jumping spider species in the genus Dendryphantes with a palearctic distribution O. hastatus Odontomachus hastatus, Fabricius, 1804, a carnivorous ant species in the genus Odontomachus S. hastatus Saccoderma hastatus, a fish species in the genus Saccoderma found in the Magdalena river in Colombia Serrasalmus hastatus, a piranha species in the genus Serrasalmus T. hastatus Thermocyclops hastatus antillensis, a crustacean species in the genus Thermocyclops Subspecies Thermocyclops schmeili hastatus, a crustacean species in the genus Thermocyclops See also Hastata (disambiguation) Hastatum