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A new species of Dicraeus Loew (Diptera: Chloropidae) attacking millet in West Africa, and its related species

Published online by Cambridge University Press:  10 July 2009

J. C. Deeming
J. C. Deeming
Affiliation:
Institute for Agricultural Research, Samaru, P.M.B. 1044 Zaria, Kaduna State, Nigeria.
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Abstract

A new species of the genus Dicraeus was observed in numbers ovipositing on the heads of rain-fed millet in Upper Volta. In Senegal, it was reared in field trials from heads that had been exposed for one week following onset of flowering, the highest infestation being in heads that flowered during the first two weeks in October. In Nigeria, larval feeding lesions and withering were observed in seeds from individual inflorescences containing pupae. The species is described as D. pennisetivora sp. n. from the adults of both sexes, puparium and third-instar larva. A further three African species that are closely related to it are described from adult material alone, and the characters of the adult terminalia of two further closely related but already described species are given. The six species are keyed. There being no previous description of the larva of any species of this genus, the larva is likened to those of other chloropid genera. The generic diagnosis is modified. It is suggested that within this genus the structure of female terminalia determines the structure of male terminalia, in which case subgenera based upon characters of male terminalia are purely artificial.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 69 , Issue 4 , December 1979 , pp. 541 - 551
Copyright
Copyright © Cambridge University Press 1979

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References

Andersson, H. (1977). Taxonomic and phylogenetic studies on Chloropidae (Diptera) with special reference to Old World genera.— Ent. Scand. Suppl. 8, 8 pp.Google Scholar
Balachowsky, A. & Mesnil, L. (1977). Les insectes nuisibles aux plantes cultivées. Leurs Moeurs, leur destruction.. Vol 1.–1137pp. Paris, Busson.Google Scholar
Coutin, R. & Harris, K. M. (1974). Biologie deContarinia sorghi (Harris) comb. nov. sur le Mil au Sénégal [Dipt. Cecidomyidae].— Annls Soc. ent. Fr. (n.s.) 10, 457–465.CrossRefGoogle Scholar
Hennig, W. (1952). Die Larvenformen der Dipteren.3 Teil.– 628 pp. Berlin, Akademie-Verlag.Google Scholar
Kanmiya, K. (1971). Study on the genus Dicraeus Loew from Japan and Formosa (Diptera, Chloropidae).—Mushi. 45. 157–180.Google Scholar
Nartshuk, E. P. (1967). Chloropid flies of the genus Dicraeus Lw. (Diptera, Chloropidae).— Ent. Rev. 46, 245–256.Google Scholar
Nye, I. W. B. (1958). The external morphology of some of the dipterous larvae living in the Gramineae of Britain.— Trans. R. ent. Soc. Lond. 110, 411–487.CrossRefGoogle Scholar
Sabrosky, C. W. (1957). Results of the Zoological Expedition of Professor Dr. Håkan Lindberg to the Cape Verde Islands in the winter 1953–54. No. 11: Chloropidae (Diptera) of the Cape Verde Islands.— Commental. biol. 16, 1–10.Google Scholar
Sabrosky, C. W. (1967). Two new and economically significant Chloropidae, with the description of a new genus (Diptera).— J. Kans. ent. Soc. 40, 151–156.Google Scholar