Morphological examination of adults is needed to confirm identification. See the field screening aid by Brambila (2009). Final identification should be confirmed by dissecting and examining adult male internal structures.
Not present in the U.S.: Oxycarenus albidipennis, O. bokalae, O. congoensis, and O. pallidipennis. O. hyalinipennis can be differentiated from O. boklae by examining the clavus which will be either completely or mostly pale, brick-red to white, whereas in O. bokalae the clavus will be almost uniformly dark brown or black (Slater et al., 1994). O. albidipennis, O. pallidipennis, and O. congoensis can be differentiated by their orange-red coloration of the first five abdominal segments (Slater et al., 1994).