Caddisfly Life History 
115 
Total length Total length 
mm mm 
Fig. 5. Regression analysis of body length and case length for P. postica larvae. 
Number in parentheses = sample size in fall and winter. 
LITERATURE CITED 
Betten, Cornelius. 1934. The caddis flies or Trichoptera of New York state. N. Y. 
State Mus. Bull. 292. 576 pp. 
Fankhauser, Gerhard, and L. E. Reik. 1935. Experiments on the case-building of 
the caddisfly larva, Neuronia postica Walker. Physiol. Zool. (^(3):337-359. 
Hill, Paul L., D. C. Tarter, B. Cremeans and M. B. Roush. 1978. State records of 
family Phryganeidae in West Virginia (Insecta; Trichoptera). Proc. W. Va. 
Acad. Sci. 50(1):24. 
Merrill, Dorothy. 1969. The distribution of case recognition behavior in ten 
families of caddis larvae (Trichoptera). Anim. Behav. /7(3):486-493. 
Merritt, Richard W., and K. W. Cummins. 1978. An introduction to the aquatic 
insects of North America. Kendall/ Hunt Publ. Co., Dubuque, Iowa. 441 pp. 
Ross, Herbert H. 1944. The Caddis Flies, or Trichoptera, of Illinois. 111. Nat. 
Hist. Surv. Bull. 23. 326 pp. 
Shapas, Theodore J., and W. L. Hilsenhoff. 1976. Feeding habits of Wisconsin’s 
predominant lotic Plecoptera, Emphemeroptera, and Trichoptera. Great Lakes 
Entomol. 9(4): 175-188. 
Sibley, Charles K. 1926. Trichoptera. pp. 102-108, 185-221 in A preliminary 
biological survey of the Lloyd-Cornell Reservation. Bull. 27 Lloyd Libr. Bot. 
Pharm. Mater. Med. 
Siltala, Antti J. 1907. Trichopterologische Untersuchungen. Zool. Jahr. Abt. 
Syst. Oekol. Geogr. Tiere. (Suppl. 1) 9:309-626. 
