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THE LARVAL INSTARS OF THE BLACK FLIES STEGOPTERNA MUTATA AND SIMULIUM VITTATUM (DIPTERA: SIMULIIDAE)

Published online by Cambridge University Press:  31 May 2012

Douglas H. Ross
Affiliation:
Department of Entomology, University of Georgia, Athens 30602

Abstract

The six larval instars of Stegopterna mutata (Malloch) and seven larval instars of Simulium vittatum Zetterstedt can be definitively separated by differences in postgenal length, body length, and number of primary cephalic fan rays. Counts of the number of rows of hooks and hooks/row in the anal circlet were inconclusive in separating all instars of either species.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1979

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References

Anderson, J. R. and Dicke, R. J.. 1960. Ecology of the immature stages of some Wisconsin black flies. Ann. ent. Soc. Am. 53: 386404.CrossRefGoogle Scholar
Chance, M. M. 1970. The functional morphology of the mouthparts of black fly larvae (Diptera: Simuliidae). Quaest. ent. 6: 245284.Google Scholar
Craig, D. A. 1975. The larvae of Tahitian Simuliidae. J. med. Ent. 12: 463476.CrossRefGoogle ScholarPubMed
Crosby, T. K. 1973. Dyar's Rule predated by Brook's Rule. N.Z. Ent. 5: 175176.CrossRefGoogle Scholar
Crosskey, R. W. 1960. A taxonomic study of the larvae of West African Simuliidae (Diptera: Nematocera) with comments on the larval black fly head. Bull. Brit. Mus. nat. Hist. (Ent.) 10.Google Scholar
Dadd, R. H. 1971. Effect of size and concentration of particles on rates of ingestion of latex particulates by mosquito larvae. Ann. ent. Soc. Am. 64: 687692.CrossRefGoogle Scholar
Davies, D. M., Peterson, B. V., and Wood, D. M.. 1962. The black flies (Diptera: Simuliidae) of Ontario. Part I: Adult identification and distribution with descriptions of six new species. Proc. ent. Soc. Ont. 92: 70154.Google Scholar
Fredeen, F. J. H. 1976. The seven larval instars of Simulium arcticum (Diptera: Simuliidae). Can. Ent. 108: 591600.CrossRefGoogle Scholar
Helson, B. V. and West, A. S.. 1978. Particulate formulations of Abate® and methoxychlor as black fly larvicides: Their selective effects on stream fauna. Can. Ent. 110: 591602.CrossRefGoogle Scholar
Kershaw, W. E. et al. 1965. Selective effect of particulate insecticides on Simulium among the stream fauna. Nature 208: 199.CrossRefGoogle ScholarPubMed
Kershaw, W. E. 1968. The selective control of Simulium larvae by particulate insecticides and its significance in river management. Trans. Roy. Soc. trop. Med. Hyg. 62: 3540.CrossRefGoogle ScholarPubMed
Malas, D. and Wallace, J. B.. 1977. Strategies for coexistence in three species of net-spinning caddisflies (Trichoptera) in second-order southern Appalachian streams. Can. J. Zool. 55: 18291840.CrossRefGoogle Scholar
Merritt, R. W., Ross, D. H., and Peterson, B. V.. 1978 a. Larval ecology of some Lower Michigan black flies (Diptera: Simuliidae) with keys to the immature stages. Great Lakes Ent. 11: 177208.Google Scholar
Merritt, R. W. et al. 1978 b. X-ray diffraction analysis of particle sizes ingested by filter-feeding animals. Entomologia exp. appl. 24: 2734.CrossRefGoogle Scholar
Mokry, J. E. 1976. Laboratory studies on the larval biology of Simulium venustum Say (Diptera: Simuliidae). Can. J. Zool. 54: 16571663.CrossRefGoogle ScholarPubMed
Mulla, M. S. and Lacey, L. A. 1976. Feeding rates of Simulium larvae on particulates in natural streams (Diptera: Simuliidae). Environ. Ent. 5: 283287.CrossRefGoogle Scholar
Ross, D. H. and Merritt, R. W.. 1978. The larval instars and population dynamics of five species of black flies (Diptera: Simuliidae) and their responses to selected environmental factors. Can. J. Zool. 56: 16331642.CrossRefGoogle Scholar
Ross, D. H. and Craig, D. A.. 1979. The seven larval instars of Prosimulium mixtum Syme and Davies and P. fuscum Syme and Davies (Diptera: Simuliidae). Can. J. Zool. 57: 290300.CrossRefGoogle Scholar
Wigglesworth, V. B. 1965. Principles of Insect Physiology. Methuen, London.Google Scholar
Williams, T. R. et al. 1961. Sizes of particles ingested by Simulium larvae. Nature 189: 78.CrossRefGoogle Scholar
Wotton, R. S. 1976. Evidence that black fly larvae can feed on particles of colloidal size. Nature 261: 697.CrossRefGoogle Scholar