48 David L. Penrose, David R. Lenat, K. W. Eagleson 



The Cricotopus/ Orthocladius group contained 15 taxa, many of 

 which are species groups. The " Euorthocladius" group (which may con- 

 tain several subgenera) is particularly in need of taxonomic revision. 



ACKNOWLEDGMENTS.- We would like to acknowledge the 

 capable assistance of several individuals, particularly Kay Dechant, 

 Ross Green, Barbara Burchard, and Jeanne Whittlesey, who were 

 responsible for sample collection and processing. Taxonomic assistance 

 was received from Paul Carlson (Ephemeroptera), Jerry Louten (Odo- 

 nata), John Morse (Trichoptera), and many chironomid specialists: Sam 

 Mozley, Pat Hudson, Jan Doughman, Len Femmington, Dave Smith, 

 M. W. Boesel, and Robert Bode. Three anonymous reviewers provided 

 helpful comments on the manuscript. 



Biological monitoring activities in North Carolina are supported by 

 a grant from the U.S. Environmental Protection Agency. 



LITERATURE CITED 



Anderson, Norman H. 1976. The distribution and biology of the Oregon Tri- 

 choptera. Oreg. Aric. Exp. Stn. Tech. Bull. No 134. 152 pp. 



, and J.R. Sedell. 1979. Detritus processing by macroinvertebrates in 



stream ecosystems. Annu. Rev. Entomol. 24:351-377. 



Asheville Citizen. 1978. Large fish kill reported. July 26. 



Baumann, Richard W. 1979. Nearctic stonefly genera as indicators of eco- 

 logical parameters (Plecoptera: Insecta). Great Basin Nat. 59:241-244. 



Berner, Lewis. 1977. Distributional patterns of southeastern mayflies (Ephem- 

 eroptera). Bull. Fla. State Mus. Biol. Sci. 22:1-55. 



Courtemanch, David, and K.E. Gibbs. 1977. The effects of one and two 

 year applications of sevin-4-oil on non-target stream invertebrates. Unpubl. 

 report, Dep. Entomol., Univ. Maine, Orono. 17 pp. 



Coffman, Wiliam P. 1973. Energy flow in a woodland stream ecosystem: II. 

 The taxonomic composition and phenology of the chironomidae as deter- 

 mined by the collection of pupal exuviae. Arch. Hydrobiol. 77:281-322. 



Dykeman, Wilma. 1955. The French Broad. Univ. Tenn. Press, Knoxville. 

 371 pp. 



Dysart, Benjamin C, A.R. Abernathy, H.J. Gover, R.D. Hatcher and B.R. 

 Ingram. 1973. Bad Creek Environmental Study. Report to Duke Power 

 Company. 217 pp. 



Edington, J.M. 1968. Habitat preferences in net-spinning caddis larvae with 

 special reference to the influence of water velocity. J. Anim. Ecol. 57:675-692. 



Eidt, D.C. 1975. The effects of fenitrothion from large-scale forest spraying on 

 benthos in New Brunswick headwater streams. Can. Entomol. 707:743-760. 



Gleason, Henry A. 1922. On the relation between species and area. Ecology 

 5:158-162. 



Gordon, A. Elizabeth, and J.B. Wallace. 1975. Distribution of the family 

 Hydropsychidae (Trichoptera) in the Savannah River Basin of North Caro- 

 lina, South Carolina and Georgia. Hydrobiologia 45:405-423. 



