A neighbour-joining tree representing the interspecific variation in the DNA barcode region for the holotypes of the Dolichogenidea species described in this paper. The tree was built in MEGA X (Kumar et al. 2018) based on the K2P model (Kimura 1980). Tip labels are: Species name | Voucher code | Host family | BIN number in BOLD. The holotype of the morphologically similar, but genetically quite diverse, Apanteles alejandromorai Fernandez-Triana is included to demonstrate the large genetic divergence between the two genera (nearly 13%).