The Mutillid wasps of the genus Timulla which occur in North America north of MexicoPublished in Entomologica Americana Lancaster, in 1937, in volume 17, pages 1-118Studies on the biology of the damosel fly Ischnura verticalis Say, with notes on certain parasitesPublished in Entomologica Americana, in 1937, in volume 17, pages 121-153
Studies on the biology of the damosel fly Ischnura verticalis Say, with notes on certain parasitesPublished in Entomologica Americana, in 1937, in volume 17, pages 121-153