Copyright © 2018 Magnolia Press. The crepuscularis species group of the ichneumonid genus Aphanistes Förster currently comprises three species—Aphanistes crepuscularis Dasch, A. guatemalenus (Cameron), and A. arcei Gauld & Bradshaw. Five new species are described: A. augustoi sp. n., A. cachil sp. n., A. paolae sp. n., A. ruthae sp. n., and A. silviae sp. n. A key for the species group is also presented.