Cuticular Hydrocarbons of the Australian Plague Locust, Chortoicetes terminifera (Walker) (Orthoptera: Acrididae), Collected from Widely Separated Geographical Locations

Autor: W. V. Brown, G. H. S. Hooper, D. M. Hunter, M. J. Lacey
Rok vydání: 1996
Předmět:
Zdroj: Australian Journal of Entomology. 35:257-262
ISSN: 1440-6055
1326-6756
DOI: 10.1111/j.1440-6055.1996.tb01400.x
Popis: Cuticular hydrocarbon profiles were obtained for adult Chortoicetes terminifera collected from Bimerah in Queensland, Hillston and Boorowa in New South Wales, and Moora in Western Australia. No significant differences were found between male and female locusts from Bimerah, nor between males from any of the four different geographical locations. been differentiated in Australia; the "south- western" race from the south-west of Western Australia and the "eastern" race from the remainder of the range of the species, i.e. most of the continent. This is based on the E/F ratio- the ratio of the length of the tegmen (E) to the length of the hind femur (F) (Key 1954). This ratio has been widely used to distinguish between the gregarious and solitary phases of some locust species. Key also noted that the E/F ratio increased in populations of C. terminifera exhibiting increasing levels of gregarious behaviour. Gregarious C. terminifera were collected in Western Australia during the 1990 plague and this paper reports an analysis of the cuticular hydrocarbons of those locusts and locusts from three widely separated locations in eastern Australia and with different levels and histories of gregarious behaviour.
Databáze: OpenAIRE
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