Riddick, E. W., Schaefer, P. W. 2006. Parasitic fungus found on multicolored asian lady beetle at overwintering site in Pennsylvania. Meeting Abstract.
Fuester, R.W., Schaefer, P.W. 2005. Research on parasitoids of buprestids in progress at the ARS Beneficial Insects Introduction Research Unit, In Proceedings, Emerald Ash Borer Research and Technology Development Meeting, September 26-27, 2005. USDA, FHTET-2005-16. p. 53-55.
Gries, R., Schaefer, P.W., Yoo, H., Greaves, M., Gries, G. 2005. (z,e)-6,8-heneicosadien-11-one: major sex pheromone component of orgyia vetusta (lepidoptera: lymantriidae). The Canadian Entomologist. 137(4): 471-475
Riddick, E.W., Schaefer, P.W. 2005. Occurrence, density, and distribution of the parasitic fungus hesperomyces virescens thaxter (laboulbeniales: laboulbeniaceae) on the multicolored asian lady beetle (coleoptera: coccinellidae). Annals of the Entomological Society of America.
Schaefer, P.W., Suasa-Ard, W., Kernasa, O., Napompeth, B. 2005. Northernmost collection record of lymantria narindra (lepidoptera: lymantriidae) in thailand: males captured in (+)-disparlure baited traps. Journal of Entomological Sciences. 40(2): 234-426 (April 2005)
Schaefer, P.W., Tosio, K., Hideho, H. 2006. First record of Lymantria (Spinotria) Grisescens Bantaizana Matsumura (Lepidoptera: Lymantriidae)on the island of Hokkaido, Japan. Entomological News. 117 (1): 115-116.
Gries, R., Khaskin, G., Gotoh, T., Schaefer, P.W., Gries, G. 2005. 2-methyl-(z,e)-7,9-octadecadiene: sex pheronome of lymantria bantaizana. Journal of Chemical Ecology. 31(4): 879-891.
Gries, R., Khaskin, G., Schaefer, P.W., Hahn, R., Gotoh, T., Gries, G. 2005. (7r,8s)-cis-7,8-epoxy-2-methyloctadec-17-ene: a novel trace component from the sex pheromone gland of gypsy moth, lymantria dispar. Journal of Chemical Ecology. 31:(1) 49-62 2005
Gries, R., Khaskin, G., Khaskin, E., Foltz, J.L., Schaefer, P.W., Gries, G. 2003. Enantiomers of (Z,Z)-6,9-Heneicosadien-11-01: Sex pheromone components of Orgyia detrita. Journal of Chemical Ecology. 29(10):2201-2212