Volume 31, Number 1 - Spring 1998 (1998)
Peer-Review Articles
A Modification of the Biotic Index of Organic Stream Pollution to Remedy Problems and Permit Its Use Throughout the Year
William L. Hilsenhoff
Probable Displacement of Riffle-Dwelling Invertebrates by the Introduced Rusty Crayfish, Orconectes Rusticus (Decapoda: Cambaridae) in a North-Central Wisconsin Stream
David C. Houghton, Jeffrey J. Dimick, and Richard V. Frie
Butterfly (Lepidoptera: Lycaenidae, Nymphalidae, and Satyridae) Faunas of Three Peatland Habitat Types in the Lake Superior Drainage Basin of Wisconsin
Jeffrey C. Nekola
Faunal Composition, Wing Polymorphism and Seasonal Abundance of Some Flea Beetles (Coleoptera: Chrysomelidae) in Southern Quebec (Canada)
Claire Levesque and Gilles-Yvon Levesque
Phylloplane Sterilization With Bleach Does Not Reduce Btk Toxicity for Papilio Glaucus Larvae (Lepidoptera: Papilionidae)
Laura Haas and J. Mark Scriber
Density-Dependent and -Independent Behaviors of the Adult Karner Blue (Lycaeides Melissa Samuelis) (Lepidoptera: Lycaenidae)
Ann B. Swengel and Scott R. Swengel
Observations of First Occurrence and Severity of Potato Leafhopper, Empoasca Fabae (Harris), (Homoptera: Cicadellidae) in the North Central and Eastern United States.
K. M. Maredia, M. E. Whalon, S. H. Gage, and M. J. Kaeb