provided by Catalog of Hymenoptera in America North of Mexico
All species nest in the ground, usually in quite friable soil. The more primitive species are solitary nesters, practice mass provisioning and prey upon Hemimetabola, whereas the more specialized species nest in large aggregations, have developed progressive provisioning behavior independently in some genera and prey largely upon advanced Holometabola. ~This subfamily has undergone considerable evolution in the New World where a number of genera occur. Bembix is the only genus of worldwide distribution and it occurs in all major zoogeographic regions.
- bibliographic citation
- Catalog of Hymenoptera in America North of Mexico. 1979. Prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein and Paul D. Hurd, Jr., Smithsonian Institution, and David R. Smith and B. D. Burks, Systematic Entomology Laboratory, Insect Identification and Beneficial Insect Introduction Institute. Science and Education Administration, United States Department of Agriculture.