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Species status of two host-associated populations of Aphytis lingnanensis (Hymenoptera: Aphelinidae) in citrus

Published online by Cambridge University Press:  10 July 2009

L.C.P. Fernando  and
G.H. Walter
L.C.P. Fernando
Affiliation:
Department of Entomology, The University of Queensland, Brisbane, Queensland 4072, Australia
G.H. Walter*
Affiliation:
Department of Entomology, The University of Queensland, Brisbane, Queensland 4072, Australia
*
† Author for correspondence.
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Abstract

Although Aphytis lingnanensis Compère is an important parasitoid of California red scale Aonidiella aurantii Maskell, several ‘races’ of A. lingnanensis exist which parasitize white louse scale Unaspis citri Comstock. The reproductive status of a white louse scale ‘race’ of A. lingnanensis that originated in Thailand was examined in relation to several populations (from Queensland, California and the Philippines) that parasitize California red scale. None of the wasps from red scale mated with individuals from white louse scale in small cages within 10 min, whereas control crosses all mated in that time. The two ‘races’ would therefore constitute independent reproductive entities (species) in sympatry in the field, although no consistent anatomical differences could be found between them, even with the aid of discriminant function analysis on the number of setae on the delta region of the forewing and the mesoscutum.

Aphytis lingnanensis from California red scale in Queensland mated readily with wasps derived from the same host species in California and the Philippines, and mating took place at random among individuals in mate choice tests. Although such results are equivocal, there are no reasons for suspecting that these different populations of A. lingnanensis from California red scale also comprise more than one species. The results obtained indicate that cross-mating tests designed to quantify reproductive isolation between sexual populations are inappropriate. They should rather be designed to establish whether individuals recognize one another as potential mates. The design of cross-mating tests should therefore consider the usual time to mating, of known conspecifics, under the experimental conditions to be used.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 87 , Issue 2 , April 1997 , pp. 137 - 144
Copyright
Copyright © Cambridge University Press 1997

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References

Browning, H.W. (1994) Biological control of the citrus snow scale, Unaspis citri, in Florida: evaluation of Aphytis and other natural enemy species, pp. 119–142in Rosen, D. (Ed.) Advances in the study of Aphytis (Hymenoptera: Aphelinidae). Andover, Intercept.Google Scholar
Clarke, A.R. & Walter, G.H. (1995) ‘Strains’ and the classical biological control of insect pests. Canadian Journal of Zoology 73, 1777–1790.CrossRefGoogle Scholar
Coetzee, M. (1989) Comparative morphology and multivariate analysis for the discrimination of four members of the Anopheles gambiae group in southern Africa. Mosquito Systematics 21, 100–116.Google Scholar
Compère, H. (1961) The red scale and its natural enemies. Hilgardia 31, 173–278.Google Scholar
Dahms, E.C. & Smith, D. (1994) The Aphytis fauna of Australia, pp. 245–256in Rosen, D. (Ed.) Advances in the study of Aphytis (Hymenoptera: Aphelinidae). Andover, Intercept.Google Scholar
Delucchi, V.L., Rosen, D. & Schlinger, E.I. (1976) Relationship of systematics to biological control, pp. 23–35 in Biosystematics in agriculture. Beltsville Symposia in Agricultural Research, 8–11 May, 1977. New York, John Wiley.Google Scholar
Foster, S.P., Dugdale, J.S. & White, C.S. (1991) Sex pheromones and the status of greenheaded and brownheaded leafroller moths in New Zealand. New Zealand Journal of Zoology 18, 63–74.CrossRefGoogle Scholar
Gordh, G. & DeBach, P. (1978) Courtship behaviour in the Aphytis lingnanensis group. Its potential usefulness in taxonomy and a review of sexual behaviour in the parasitic Hymenoptera (Chalcidoidea: Aphelinidae). Hilgardia 46, 37–75.CrossRefGoogle Scholar
Khasimuddin, S. & DeBach, P. (1976) Hybridization tests: A method for establishing biosystematic statuses of cryptic species of some parasitic hymenoptera. Annals of the Entomological Society of America 69, 15–20.CrossRefGoogle Scholar
Lambert, D.M. & Paterson, H.E.H. (1982) Morphological resemblance and its relationship to genetic distance measures. Evolutionary Theory 5, 291–300.Google Scholar
Lambert, D.M., Michaux, B. & White, C.S. (1987) Are species self defining? Systematic Zoology 36, 196–205.CrossRefGoogle Scholar
McLaren, I.W. (1971) A comparison of the population growth potential in California red scale Aonidiella aurantii (Maskell), and yellow scale A. citrina (Coquillet), on citrus. Australian Journal of Zoology 19, 189–204.CrossRefGoogle Scholar
McLaren, I.W. (1978) Biological control of citrus scale pests. Proceedings of the International Society of Citriculture,Sydney,114–149.Google Scholar
Papacek, D.F. & Smith, D. (1985) Aphytis lingnanensis. pp. 373–381in Singh, P. & Moore, R.F. (Eds) Handbook of insect rearing, Volume 1, Amsterdam, Elsevier Science Publishers.Google Scholar
Paterson, H.E.H. (1985) The recognition concept of species, pp. 21–29in Vrba, E.S (Ed.) Species and speciation. Transvaal Museum Monographs No. 4.Google Scholar
Paterson, H.E.H. (1988) On defining species in terms of sterility: problems and alternatives. Pacific Science 42, 65–71.Google Scholar
Paterson, H.E.H. (1991) The recognition of cryptic species among economically important insects, pp. 1–10in Zalucki, M.P. (Ed.) Heliothis: research methods and prospects. New York, Springer-Verlag.Google Scholar
Prinsloo, G.L. & Neser, O.C. (1994) The Aphytis fauna of the Afrotropical region, pp. 279–302in Rosen, D (Ed.) Advances in the study of Aphytis (Hymenoptera: Aphelinidae). Andover, Intercept.Google Scholar
Rao, S.V. & DeBach, P. (1969a) Experimental studies on hybridization and sexual isolation between some Aphytis species (Hymenoptera: Aphelinidae) I. Experimental hybridization and an interpretation of evolutionary relationships among the species. Hilgardia 39, 515–553.CrossRefGoogle Scholar
Rao, S.V. & DeBach, P. (1969b) Experimental hybridization and sexual isolation between some Aphytis species (Hymenoptera: Aphelinidae) II. Experiments on sexual isolation. Hilgardia 39, 555–567.Google Scholar
Rao, S.V. & DeBach, P. (1969c) Experimental studies on hybridization and sexual isolation between some Aphytis species (Hymenoptera: Aphelinidae) III. The significance of reproductive isolation between interspecific hybrids and parental species. Evolution 23, 525–533.CrossRefGoogle ScholarPubMed
Riehl, L.A., Brooks, R.F., McCoy, C.W., Fisher, T.W. & Dean, H.A. (1980) Accomplishment towards improving integrated pest management in citrus, pp. 320–363in New technology of pest control. New York, John Wiley.Google Scholar
Rosen, D. (1965) The hymenopterous parasites of citrus armoured scales in Israel (Hymenoptera: Chalcidoidea). Annals of the Entomological Society of America 58, 388–396.CrossRefGoogle Scholar
Rosen, D. & DeBach, P. (1979) Species of Aphytis of the world (Hymenoptera: Aphelinidae). 801 pp. Jerusalem, Dr W. Junk.CrossRefGoogle Scholar
Ryan, M.A., Cokl, A. & Walter, G.H. (1996) Differences in vibratory sound communication between a Slovenian and an Australian population of Nezara viridula (L.) (Heteroptera: Pentatomidae). Behavioural Processes 36, 183–193.Google Scholar
SAS Institute Inc. (1988) SAS/STAT TM user's guide, release 6.03 edition. SAS Institute Inc., Cary, N.C.Google Scholar
Siegel, S. (1988) Non-parametric statistics for the behavioural sciences. 399 pp. 2nd Edn.New York, McGraw Hill.Google Scholar
Smith, D. (1978) Biological control of scale insects on citrus in south-eastern Queensland. I. Control of red scale A. aurantii (Maskell). Journal of the Australian Entomological Society 17, 367–371.CrossRefGoogle Scholar
Walter, G.H. (1995) Species concepts and the nature of ecological generalizations about diversity, pp. 191–224in Lambert, D.M. & Spencer, H.G. (Eds) Speciation and the recognition concept: theory and application. Johns Hopkins University Press, Baltimore.Google Scholar
White, C.S. & Lambert, D.M. (1995) Genetic continuity within, and discontinuities among, populations of leafroller moths with distinct sex-pheromones. Heredity 75, 243–255.Google Scholar
Woolley, J.B., Rose, M. & Krauter, P.C. (1994) Morphometric comparisons of Aphytis species in the lingnanensis group, pp. 223–244in Rosen, D. (Ed.) Advances in the study of Aphytis (Hymenoptera: Aphelinidae). Andover, Intercept.Google Scholar