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Studies on the biology and taxonomy of some Chilocorus spp. (Coleoptera: Coccinellidae) preying on Aulacaspis spp. (Hemiptera: Diaspididae) in East Africa, with the description of a new species

Published online by Cambridge University Press:  10 July 2009

D. J. Greathead  and
R. D. Pope
D. J. Greathead
Affiliation:
Commonwealth Institute of Biological Control, 56 Queen's Gate, London SW7 5JR, U.K.
R. D. Pope
Affiliation:
Department of Entomology, British Museum (Natural History), Cromwell Road, London SW7 5BD, U.K.
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Abstract

Field studies of predators on Aulacaspis tegalensis (Zhnt.) and laboratory breeding experiments, supplemented by taxonomic studies, showed that Chilocorus discoideus Crotch and C. bilineata Korsch. are junior synonyms of C. schioedtei Muls. and that two other forms, originally described as ‘aberrations’, may also belong to this species. Similarly, C. erythrocephalus Muls. and C. solitus Weise are junior synonyms of C. distigma (Klug). C. rufoplagiatus sp. n., allied to C. distigma, is described from the shores of Lake Victoria, and the Oriental species C. nigritus (F.) is recorded from the African mainland for the first time. C. distigma is found in the savanna and steppe areas of Africa and C. schioedtei in the forest and adjoining zones. Comparative studies suggest that, although C. schioedtei has a higher fecundity, it is not displaced by C. distigma as, unlike the latter, it is unable to breed under hot dry conditions. Comparison of host records for these two species show that C. distigma is not restricted to feeding on Diaspididae, as is C. schioedtei, but that otherwise the range of hosts and associated plants is similar for both species. The potential of these species and C. nigritus for use in biological control is discussed and it is suggested that C. schioedtei is only suitable for trial in tropical areas without a dry season, but that C. distigma and C. nigritus may be useful under a wider range of conditions.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 67 , Issue 2 , June 1977 , pp. 259 - 270
Copyright
Copyright © Cambridge University Press 1977

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References

Buyckx, E. J. E.. (1962). Précis des maladies et des insectes nuisibles recontrés sur les plantes cultivees au Congo, au Rwanda, et au Burundi.—Publ. Inst. Nat. Etude agron. Congo (hors Serie), 708 pp.Google Scholar
Chiaramonte, A.. (1933). Considerazione entomologiche sulla coltura della cana da zuchero nella Somalia Italiana.—Agric. colon. 72, 220–222.Google Scholar
Crotch, G. R.. (1874). A revision of the coleopterous family Coccinellidae.—xv+311 pp. London, Janson.CrossRefGoogle Scholar
Fabricius, J. C.. (1798). Entomologia Systematica Supplementum.—Hafiniae, 572 pp.Google Scholar
Fisher, T. W.. (1959). Occurrence of spermatophores in certain species of Chilocorus (Coleoptera: Coccinellidae).—Pan-Pacif. Ent. 35, 205–208.Google Scholar
Forsyth, J.. (1966). Agricultural insects of Ghana.—Ghana Univ. Press, Accra, 163 pp.Google Scholar
Ghesqoiere, J.. (1927). Notes sur les coccides parasites des agrumes au Congo beige.—Rev. Zool. A jr. 14, 310–316.Google Scholar
Greathead, D. J.. (1970). White sugar cane scales (Aulacaspis spp.) (Diaspididae: Hemiptera) in East Africa with notes on. their natural enemies.—E. Afr. agric. For. J. 36, 70–76.CrossRefGoogle Scholar
Greathead, D. J.. (1971). A review of biological control in the Ethiopian Region.—Tech. Bull. Commonw. Inst. biol. Control no. 5, 162 pp.Google Scholar
Hagen, K. S.. (1962). Biology and ecology of predaceous Coccinellidae.—A. Rev. Ent. 7, 289–326.CrossRefGoogle Scholar
Iperti, G. & Brun, J.. (1969). Role d'une quarantaine pour la multiplication des Coccinellidae coccidiphages destinés à combattre la cochenille du Palmier-Dattier (Parlatoria blanchardi Targ.) en Adrar mauritanien.—Entomophaga. 14, 149–157.CrossRefGoogle Scholar
Jepson, W. F.. (1941). Annual Report of the Entomological Division.—Rep. Dep. Agric. Maurit. 1939, 16–19.Google Scholar
Keay, R. J. W. (1959). Vegetation map of Africa south of the Tropic of Cancer. — 24 pp. Oxford University Press.Google Scholar
Klug, (1835). pp. 27 – 50Insekten in Reise urn die Erde durch Nord-Asien und die beiden Oceane in den Jahren 1828, 1829 und 1830 ausgefärt von Adolf Erman.—Natur-historische Atlas. vi+64 pp. Berlin, G. Reimer.Google Scholar
Korschefsky, R.. (1940). Vier neue Coccinelliden der Alten Welt.—Ent. Bl. Biol. Syst. Kafer. 36, 1–3.Google Scholar
Le Pelley, R. H.. (1959). Agricultural insects of East Africa.—x+307 pp. Nairobi, E. Afr. High Comm.Google Scholar
Lambourn, W. A.. (1914). The agricultural pests of the southern provinces, Nigeria.—Bull. ent. Res. S. 197–214.CrossRefGoogle Scholar
Lefevre, P. C.. (1944). Notes sur quelques insectes parasites de Manihot utilissima Polh. dans la region de Kasenyi (Lac Albert).—Bull, agric. Congo beige. 35, 191–200.Google Scholar
Mader, L.. (1941). Coccinellidae I Teil.—Explor. Pare. natn. Albert Miss. G. F. de Witte. (1933–1935) 34, 208 pp.Google Scholar
Mader, L.. (1954). Coccinellidae III Teil. — Explor. Pare. natn. Albert Miss. G. F. de Witte. (1933–1935) 80, 206 pp.Google Scholar
Mulsant, M. E.. (1850). Species des coleoptères trimères sècuripalpes.—Annls. Sci. Phys. nat. Lyon. (2) 2, xv+1−1104.Google Scholar
Patterson, W. H.. (1926). Annual report of the Government Entomologist Gold Coast.— Rep. agric. Dep. Gold Cst. 1925–26, 36–38.Google Scholar
Rao, V. T.., David, A. L. & Rao, K. R. M.. (1954). Attempts at the utilisation of Chilocorus nigritus Fab. (Coleoptera, Coccinellidae) in the Madras State.—Indian J. Ent. 16, 205–209.Google Scholar
Russell, E. W.. (Ed.) (1962). The natural resources of East Africa. −144 pp. E. Afr. Literature Bureau, Nairobi.Google Scholar
Searle, C. M.ST, L. (1964). A list of insect enemies of citrus pests in Southern Africa.—Tech. commun. Dep. Agric. S. Afr. Tech. Serv. no. 30, 18 pp.Google Scholar
Silvestri, F.. (1915). Contribute alia cognoscenza degli insetti dell'olivo dell'Eritrea e dell'Africa meridionale.—Boll. Lab. Zool. gen. agr. Portici 9, 240–334.Google Scholar
Smee, C.. (1942). Report of the Entomologist, 1941. 14 pp. typescript. (Seen as abstract in Rev. appl. Ent. (A) 30, 502–504.)Google Scholar
Valles, E.. (1965). Aspectos da luta biogica em geral e dum casó em especial da cochonilha de coquiero (Aspidiotus destructor Sign.). IV—Jornados silvo-agron. 1963 2, 259–279.Google Scholar
Vesey-FitzGerald, D.. (1941). Progress of the control of coconut-feeding Coccidae in Seychelles.—Bull. ent. Res. 32, 161–164.CrossRefGoogle Scholar
Vesey-FitzGerald, D.. (1953). Review of the biological control of coccids on coconut palms in the Seychelles.—Bull. ent. Res. 44, 405–413.CrossRefGoogle Scholar
Weise, J.. (1899). Coccinelliden aus Deutsch-Ostafrika.—A rch. Naturgesch. 65 (2), 49–70.Google Scholar
Williams, J. R. & Greathead, D. J.. (1973). The sugarcane scale insect Aulacaspis tegalensis (Zhnt.) and its biological control in Mauritius and East Africa.—PANS. 19, 353–367.Google Scholar