Review of Mexican species of the genus Polycyrtus Spinola , 1840 (Hymenoptera : Ichneumonidae : Cryptini), with key to the species of North America

Key to 42 North American species of the neotropical genus Polycyrtus is given. Seven new species from Mexico are described: P. burgosi sp.n., P. clavator sp.n., P. comma sp.n., P. crespoi sp.n., P. curtispina sp.n., P. soniae sp.n., P. yucatan sp.n. 23 species are recorded for Mexico; new data on their distribution are given. New synonymies are established: Polycyrtus major (Cresson, 1873) = Polycyrtus championi Cameron, 1885, = Polycyrtus fulvofemoratus Cameron, 1885, Polycyrtus montezuma Cameron, 1885, = Polycyrtus canaliculatus Cameron, 1885, =Polycyrtus blanditus Cameron, 1885, syn.n.