Bulletin of Entomological Research (1972) 61, 661-667

T.A. Taylor (1972)
On the origin of the wet-season form of Zonocerus variegatus (L) (Orth., Acrididae) in southern Nigeria, with some biological notes
Bulletin of Entomological Research 61 (4), 661-667
Abstract: Previous reports and field observations at lbadan and in northern Nigeria have established the occurrence of a dry season form and a wet season form of Zonocerus variegatus. The wet season form in the savanna areas of northern Nigeria is shown to be virtually identical with that from southern Nigeria on the basis of breeding seasons, habitat and morphometrics. Morphometrics show the wet and dry season forms to be distinct. It is suggested that the dry season form in the wet rain forest zone spreads into the dry savanna areas giving rise to a wet season form adapted to the different climatic conditions. The increasing occurrence of the wet season form in the south probably represents a reinvasion by the northern wet season form.
(The abstract is excluded from the Creative Commons licence and has been copied from Acridological Abstracts with permission by NRI, Univ. of Greenwich at Medway.)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Zonocerus variegatus		Nigeria