R. R.  Kula, ?Review of the New World species of Coiba Marsh (Hymenoptera: Braconidae: Doryctinae), including descriptions of two new species, new distribution records, and a key to species.?, Proceedings of the Entomological Society of Washington, vol. 111(1), pp. 183-198, 2009.

R. R.  Kula and Marsh, P. M., ?Doryctinae (Hymenoptera: Braconidae) of Konza prairie excluding species of Heterospilus Haliday.?, Proceedings of the Entomological Society of Washington, vol. 113 (4), pp. 451-491, 2011.

R. R.  Kula, ?Two new brachypterous species of Heterospilus Haliday (Hymenoptera, Braconidae, Doryctinae) from the Nearctic Region.?, Journal of Hymenoptera Research, vol. 21, pp. 53-64, 2011.

R. R.  Kula, Knight, K. S., Rebbeck, J., Bauer, L. S., Cappaert, D. L., and Gandhi, K. J. K., ?Leluthia astigma (Ashmead) (Hymenoptera: Braconidae: Doryctinae) as a parasitoid of Agrilus planipennis Fairmaire (Coleoptera: Buprestidae: Agrilinae), with an assessment of host associations for nearctic species of Leluthia Cameron.?, Proceedings of the Entomological Society of Washington, vol. 112(2), pp. 246-257, 2010.

R. R.  Kula and Marsh, P. M., ?Doryctinae (Hymenoptera: Braconidae) of Konza prairie excluding species of Heterospilus Haliday?, Proceeding of the Entomological Society of Washington, vol. 113, no. 4, pp. 451-491, 2011.