Papers on Aphididæ ...
Series: U.S. Dept. of Agriculture. Bureau of Entomology. Technical series,; no. 25
Publisher: Govt. Print. Off.
Published: 1915
Place of publication: Washington
Language: eng
Number of pages: 43
Subjects: Aphididae.
Notes: Bibliography: p. 40.
Papers first published separately, 1912-1914.
Table of contents: title: I. Studies on a new species of Toxoptera ... By W.J. Phillips and J.J. Davis.; title: II. The yellow clover aphis. By J.J. Davis.