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BEHAVIORAL STUDIES ON MALACOSOMA DISSTRIA (LEPIDOPTERA: LASIOCAMPIDAE)1

Published online by Cambridge University Press:  31 May 2012

J. A. Greenblatt
Affiliation:
School of Natural Resources, The University of Michigan, Ann Arbor 48109
J. A. Witter
Affiliation:
School of Natural Resources, The University of Michigan, Ann Arbor 48109

Abstract

First-stage forest tent caterpillar larvae were tested for the presence of active and sluggish behavior types such as Wellington found in Malacosoma californicum pluviale (Dyar). Larvae capable of directed movement towards a 30 w light source were classified as active. Larvae were tested on 3 consecutive days, and only a small percentage responded on all 3 days. A much larger percentage remained sluggish throughout the period. Chi-square tests confirmed that the differences in response were not random. There was a tendency for some larvae to respond to light during the test and for others not to respond. The reduced consistency in the response of "active" larvae in M. disstria Hübner compared with that reported for M.c. pluviale may be partly due to real behavioral differences, but it also may be partly due to some procedural differences between our tests and Wellington’s.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1976

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References

Campbell, I. M. 1966. Genetic variation related to survival in lepidopteran species, pp. 129135. In Gerhold, H. D., Schreiner, E. J., McDermott, R. E., and Winieski, J. A. (Eds.), Breeding pest-resistant trees. Pergamon Press, New York.CrossRefGoogle Scholar
Franz, J. M. and Laux, W.. 1964. Individual differences in Malacosoma neustria (L.). Proc. XII int. Congr. Ent. (London), pp. 393394.Google Scholar
Greenblatt, J. 1974. Behavioral studies on tent caterpillars. MS Thesis, University of Michigan, Ann Arbor. 55 pp.Google Scholar
Ives, W. 1973. Heat units and outbreaks of the forest tent caterpillar, Malacosoma disstria (Lepidoptera: Lasiocampidae). Can. Ent. 105: 529543.CrossRefGoogle Scholar
Laux, W. 1962. Individuelle unterschiede in verhalten und leistung des ringelspinners, Malacosoma neustria (L.). Z. angew Zool. 49: 465524.Google Scholar
Sullivan, C. R. and Wellington, W. G.. 1953. The light reactions of larvae of the tent caterpillars, Malacosoma disstria Hbn., M. americanum (Fab.), and M. pluviale (Dyar). Can. Ent. 85: 297310.CrossRefGoogle Scholar
Wellington, W. G. 1957. Individual differences as a factor in population dynamics: the development of a problem. Can. J. Zool. 35: 293323.CrossRefGoogle Scholar
Wellington, W. G. 1959. Individual differences in larvae and egg masses of the western tent caterpillar. Can. Dep. For., Forest Ent. Path. Br., Bi-mon. Prog. Rep. 15(6): 34.Google Scholar
Wellington, W. G. 1960. Qualitative changes in natural populations during changes in abundance. Can. J. Zool. 38: 289314.CrossRefGoogle Scholar
Wellington, W. G. 1964. Qualitative changes in populations in unstable environments. Can. Ent. 96: 436451.CrossRefGoogle Scholar
Wetzel, B. W., Kulman, H. M., and Witter, J. A.. 1973. Effects of cold temperatures on hatching of the forest tent caterpillar, Malacosoma disstria (Lepidoptera: Lasiocampidae). Can. Ent. 105: 11451149.CrossRefGoogle Scholar