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Studies on the life-cycles of two species of soldier flies (diptera, stratiomyidae) which affect sugar-cane in queensland

Published online by Cambridge University Press:  10 July 2009

B. E. Hitchcock
Affiliation:
Bureau of Sugar Experiment Stations, P.O. Box 292, North Brisbane 4000, Australia

Abstract

In Queensland, adults of the soldier flies Inopus rubriceps (Macq.) and I. flavus (James) emerge between March and June, usually on still warm days. The females mate and oviposit on the day of emergence, the eggs being deposited close to the soil surface under small clods or in cracks. Incubation takes 6–13 days, depending on temperature. Observations on larvae reared on maize seedlings showed that the wide size range in field populations of larvae at all times of the year was due to the differing rates of development of larvae of one generation, to overlapping generations and to a difference in size between the sexes. One-third of the larvae matured to adults at the end of one year, but only a few of the remainder survived to emerge as adults after two years, one-year larvae having 8–9 instars, and two-year larvae having 10–12. Pupation occurred within the last larval skin, and the pupal period lasted three weeks.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1976

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References

Anon, . (1967). Rep. Bur. Sug. Exp. Stns Qd 67, 49.Google Scholar
Bull, R. M. (1976). The larval stages of the pasture and yellow soldier flies, Inopus rubriceps (Macquart) and I. flavus (James) (Diptera, Stratiomyidae).—Bull. ent. Res. 65, 567572.CrossRefGoogle Scholar
Campbell, R. L. & Koehler, C. S. (1971). Biological observations on Inopus rubriceps (Diptera: Stratiomyidae).—Ann. ent. Soc. Am. 64, 111.CrossRefGoogle Scholar
Hitchcock, B. E. (1970). The soldier fly pest.—Proc. Qd Soc. Sug. Cane Technol., 37th Conf., 207216.Google Scholar
Irwin-Smith, V. (1920). Studies in life histories of Australian Diptera Brachycera. Part 1. Stratiomyidae. No. 1 Metoponia rubriceps Macquart.—Proc. Linn. Soc. N.S.W. 45, 505530.Google Scholar
Moller, R. B. & Mungomery, R. W. (1963). Some insect pests adversely influencing ratooning in south Queensland.—Proc. int. Soc. Sug. Cane Technol. 11, 672677.Google Scholar
Osborn, A. W. & Forteath, G. N. (1972). Dispersion of Inopus rubriceps and predation by birds and fish.—Environ. Ent. 1, 622625.CrossRefGoogle Scholar
Saunders, G. W. (1963). Soldier fly attacks Atherton Tableland pastures.—Qd Agric. J. 89, 217219.Google Scholar