Notes on the biology of some of our North American species of May-flies.
By: [By] Helen E. Murphy.
Series: Bulletin of the Lloyd Library of Botany, Natural History, Pharmacy and Materia Medica,; no. 22. Entomological series, no. 2
Published: 1922
Place of publication: [Cincinnati
Language: eng
Number of pages: 46
Subjects: Mayflies.
Notes: Bibliography: p. 23-26.
Descriptive letterpress on versos facing the plates.
Contribution from the Limnological Laboratory, Cornell University.
Also issued as thesis (PH. D.) Cornell University, 1920.
Table of contents: title: I. The metamorphosis of May-fly mouth parts.; title: II. Notes on the biology of May-flies of the genus Baetis.