Key to the Nearctic species of Lonchodryinus Females 1 Head mostly black or brown-black ................................................................................................... L. bakeri (Kieffer) - Head testaceous............................................................................................................................................................. 2 2 Pterostigma very broad (Fig. 6); notauli reaching about 0.7 length of scutum; posterior surface of propodeum with- out longitudinal keels .......................................................................................... L. politus Olmi et Guglielmino n. sp. - Pterostigma less broad (Fig. 7); notauli reaching about 0.5 length of scutum; posterior surface of propodeum with two longitudinal keels ............................................................................................................................ L. flavus Olmi Males (unknown in L. politus) 1 Greatest breadth of posterior ocelli about as long as, or slightly shorter than OPL ............................... L. flavus Olmi - OPL at least 1.5 times as long as greatest breadth of posterior ocelli ............................................. L. bakeri (Kieffer)

Published as part of Olmi, Massimo & Guglielmino, Adalgisa, 2010, Revision of Nearctic species of Lonchodryinus Kieffer 1905, with description of a new species from New Mexico (Hymenoptera: Dryinidae), pp. 30-40 in Zootaxa 2654 on page 39, DOI: 10.5281/zenodo.198910