Male foretibial plates and mating in Crabro cribrellifer (Packard) (Hymenoptera: Sphecidae), with a survey of expanded male forelegs in Apoidea. Annals of the Entomological Society of America. 85(2):219-223.. 1992.
Sexual behavior of Eumenid wasps (Hymenoptera: Eumenidae). Proceedings of the Entomological Society of Washington. 88(3):531-541.. 1986.
Defensive stinging and Mullerian mimicry among Eumenid wasps (Hymenoptera: Vespoidea: Eumenidae). The American Midlands Naturalist. 113:198-199.. 1985.
Phenological relationships of wasps, bumblebees, their mimics and insectivorous birds in northern Michigan. Ecological Entomology. 10:99-110.. 1985.
Polistes wasps (Hymenoptera: Vespidae) show interference competition with other insects for Kermes scale insect (Homoptera: Kermesidae) secretions. Proceedings of the Entomological Society of Washington. 81:570-575.. 1979.