Identification and descriptions of the ultimate instar larvae of Hydraecia immanis (hop vine borer) and H. micacea (potato stem borer) (Lepidoptera: Noctuidae)
By: George L. Godfrey.
Contributors: Illinois. Natural History Survey Division.
Series: Biological notes -- no. 114
Publisher: State of Illinois, Illinois Institute of Natural Resources, Natural History Survey Division
Published: 1981
Place of publication: Champaign, Ill
Language: eng
Subjects: Hop vine borer; Potato stem borer
Notes: Cover title.

"February 1981."

Bibliography: p. 8.