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Intraspecific variability in Atherigona lineata (Adams) (Diptera: Muscidae)

Published online by Cambridge University Press:  19 September 2011

Michael Chidozie Dike
Michael Chidozie Dike
Affiliation:
Department of Crop Protection, Institute for Agricultural Research, Ahmadu Bello University, PMB 1044 Zaria, Nigeria
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Abstract

Over 300 male specimens of Atherigona lineata from the Natural History Museum, London, the Regional Museum of Wales, Cardiff, and various parts of Nigeria including the Institute for Agricultural Research Insect Museum, Samaru, were examined using the binocular microscope, to determine the extent of variability in this species. Three hundred and twenty-six male specimens of Atherigona lineata (Adams) segregated into 10 forms based on variability in the shape and chaetotaxy of the trifoliate process, with minor individual variations observed within some of the forms. Variability was observed in the extent of infuscation of the fore femur. Generally, the hypopygial prominence, which is bilobed, also showed some variability in the length and width of the lobes.

Résumé

Plus de 300 specimens mâles de Atherigona lineata (Adams) provenant du Muséum d'Histoire Naturelle de Londres, du Muséum Régional du pays des Galles, Cardiff et de différentes parties du Nigéria, y compris l'Institut du Musée de Recherche Agricole Entomologique, Samaru, ont été examinés au microscope binoculaire pour déterminer l'étendue de la variabilité dans cette espèce. En se basant sur la structure et la chaetotaxie du processus trifolié de 326 specimens, 10 formes ont été observées, avec de legères variations individuelles au sein de certaines formes. Une certaine variabilité a été observée dans l'étendue de l'infuscation du fémur antérieur. En général, la prominence hypopygiale qui est bilobée, a aussi manifesté une certaine variabilité dans la longueur et l'étendue des lobes.

Keywords

Atherigona lineataformsAtherigona lineataformes
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 15 , Issue 4-5 , October 1994 , pp. 513 - 523
Copyright
Copyright © ICIPE 1994

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References

REFERENCES

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