1 literature reference for Dolichomitus sparsus Townes, 1960:

Author: Townes, H.K.; Townes, M.; Walley, G.S.; Townes, G.
Year: 1960
Title: Ichneumon-flies of American north of Mexico: 2 Subfamily Ephialtinae, Xoridinae, Acaenitinae.
Source: United States National Museum Bulletin. 216(2):1-676.