The Phases of Locusts in South Africa |
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activity adult stage albinos Aniline yellow background became green biometrical black hoppers box painted bright green hoppers brown cages containing celluloid cylinders cylinders over growing described experiments extreme gregaria extreme solitaria F₂ fair resemblance females field fifth instar fourth instar gauze cylinders glass Graaff Reinet green colour green food green hoppers gregaria characters gregaria coloration gregaria hoppers gregaria type grey-black growing grass hoppers reared hoppers were placed incipient swarms incubation insects instar hoppers isolated hoppers John Bale Locusta migratoria Locustana pardalina locustine Makoni males material migrating swarms migratorioides migratory locusts moult number of hoppers nymphs obtained Orange Free painted boxes pair pardalina percentage permanent habitat phase gregaria phase solitaria Pretoria pronotum ratio reared in isolation second instar solitaria hoppers solitaria type solitary phase species specimens succulent swarm phase swarm type temperature tested third instar transiens type Uvarov veld Vredendal wire gauze yellow