Ashmead, W. H. 1893. A monograph of the North American Proctotrypidae. Bulletin of the United States National Museum 45:1-472.
Taxa (in this database) described in this work:
Conostigmus schwarzi, Conostigmus erythrothorax, Conostigmus laeviceps, Conostigmus ambiguus, Conostigmus californicus, Conostigmus marylandicus, Conostigmus pergandei, Conostigmus popenoei
