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The Mutillid wasps of the genus Timulla which occur in North America north of Mexico

Published in Entomologica Americana Lancaster, in 1937, in volume 17, pages 1-118

Created: 2016-05-18, modified: 2016-05-18

Studies on the biology of the damosel fly Ischnura verticalis Say, with notes on certain parasites

Published in Entomologica Americana, in 1937, in volume 17, pages 121-153

Created: 2016-05-17, modified: 2016-05-17