The polymorphism in Philaenus spumarius (L.) (Hemiptera: Cercopidae) in British Columbia

D. J. Farish, G. G. E. Scudder

Abstract


This paper analyses the distribution and relative frequency of the morphs of <i>Philaenus spumarius</i> in British Columbia, the populations being drawn from different biotic areas. 1t is shown that nine morphs occur in the province and of these, <i>marginellus</i> occurs only in the south-west corner; <i>marginellus</i> and <i>lateralis</i> occur only as females. The frequency of the morphs in the biotic areas of the province is not uniform; populations in dry areas differ signIficantly from those in wet areas. Populations taken from the various forest areas are not identical, nor are those from coastal areas. Within a single biotic area, the frequency of morphs appears to be stable. No significant difference was determined between two samples taken sixteen years apart. Further, there appears to be no significant seasonal, daily or hourly change in the morph frequency in an area. An experiment carried out on mating individuals failed to demonstrate a tendency for non-random mating and there was no evidence for the preferential mating of the rarer types.


Keywords


polymorphism; <i>Philaenus spumarius</i>; Hemiptera; Cercopidae

Full Text:

PDF

References


Anon. 1962. The meadow spittlebug. U.S. Dept. Agric. 514. 4 pp.

Boring, A.M. 1913. The chromosomes of the Cercopidae. BioI. Bull. 24:133-146.

Clarke, B. and J. Murray. 1962a. Changes in gene-frequency in Cepaea nemoralis (L). Heredity 17:445-465.

Clarke, B. and J. Murray. 1962b. Changes in genc-frequency in Cepaea nemoralis (L.); the estimation of selective values. Heredity 17:467-476.

Dobzhansky Th. 1943. Genetics of natural pop ulations. IX. Temporal changes in the composition of populations of Drosophila pseudoobscura. Genetics 28:162-186.

Dobzhansky, Th. 1948. Genetics of natural populations. XVI. Altitudinal and seasonal changes produced by natural selection in certain populations of Drosophila pseudoobscura and Drosophila persimilis. Genetics 33:158-176.

Dobzhansky, Th. 1958. Genetics of natural populations. XXVII. The genetic changes in populations of Drosophila pseudoobscura in the American Southwest. Evolution 12:385-401.

Doering, K. 1930a. Synopsis of the family Cercopidae, Homoptera) in North America. Part 1. J. Kansas Ent. Soc. 3:53-64.

Doering, K. 1930b. Synopsis of the family Cercopidae (Homoptera) in North America. Part II. J. Kansas Ent. Soc. 3:81-108.

Ehrman, L. et al. 1965. Sexual selection, geotaxis, and chromosomal polymorphism in experimental populations of Drosophila pseudoobscura. Evolution 19:337-346.

Edwards, J. 1896. The Hemiptera-Homoptera (Cicadina and Psyllina) of the British Isles, London.

Ford, E.B. 1965a. Ecological Genetics. Methuen & Co. Ltd., London. (2nd edition).

Ford, E.B. 1965b. Genetic Polymorphism, Faher & Fauer, London.

Gyrisco, G.G., 1958. Forage insects and their control. Ann. Rev. Ent. 3:435-438.

Halkka, O. 1962a. Polymorphism in populations of Philaenus spumarius close to equilibrium. Ann. Acad. Sci . Fenn. 59(A.6):5-22.

Halkka, O. 1962b. Equilibrium populations of Philaenus spumarius (L.). Nature (Lond.) 193:93-94.

Halkka, O. et al. 1966 Crossing experiments with Philaenus spumarius (Homoptera). Hereditas 56:306-312.

Ovanitz, W. 1953. Polymorphism and evolution. Symp. Soc. Exp. Biol. 7:239-253.

Hutchinson, G.E. 1964. A note on the polymorphism of Philaenus spumarius (L.) (Homopt.: Cercopidae) in Britain. Ent. mon. Mag. 99:175-178.

Kettlewell, H.B.D. 1961. The phenomenon of industrial melanism in the Lepidoptera. Ann. Rev. Ent. 6:245-262.

Komai, T. 1956. Genetics of Ladybeetles. Adv. Genet. 8:155-188.

Levigne. R. 1959. Biology of Philaenus leucophthalmus (L.) in Massachusetts. J. Econ. Ent. 52:904-907.

Munro, J.A. and I. McT. Cowan. 1947. A review of the bird fauna of British Columbia. Spec. Publ. B.C, Prov. Mus. 2. 285 pp.

Owen, D.F. and R.G. Wiegert. 1962. Balanced polymorphism in the meados spittlebug, Philaenus spumarius. Amer. Nat. 96:35:3-359.

Sheppard, P.M. 1952. A note on the non-random mating in the moth Panaxia dominula (L.). Heredity 6:239-241.

Siegel, S. 1956. Nonparametric Statistics for the Behavioural Sciences, New York.


Refbacks

  • There are currently no refbacks.