This study observes the nesting behavior of two species of digger wasps, Philanthus pulcher and P. crabroniformis, in the sandy banks of the Snake River at Jackson Hole, Wyoming during July and August of 1967. The noting of differences in two species sharing the same habitat was the primary result of this study.
Pierre, Cleo C.
"A Comparative Study of the Nesting Behavior of Two Species of Digger Wasps in Jackson Hole, Wyoming,"
Jackson Hole Research Station Annual Report: Vol. 1967
, Article 18.
Available at: http://repository.uwyo.edu/jhrs_reports/vol1967/iss1/18