Winter Rainfall Zones:
- summer too hot and dry winter too cold or dry winters too cold summer too wet( summer too hot and dry, winter too cold or dry, winters too cold, summer too wet )
- autumn moist, larvae develop larvae only develop in spring( autumn moist, larvae develop, larvae only develop in spring )
- winter moist, grass short winter dry, grass short winter dry, grass long winter moist, grass long( winter moist, grass short, winter dry, grass short, winter dry, grass long, winter moist, grass long )
- spring “flush” dilutes larvae spring "flush" increased number of larva( spring “flush” dilutes larvae, spring "flush" increased number of larva )
- rising temperatures shorten survival time

Summer Rainfall Zones
- winter too cold or dry summer too hot or too wet( winter too cold or dry, summer too hot or too wet )
- larvae develop in spring larvae develop in summer larvae develop in winter larvae develop in autumn( larvae develop in spring, larvae develop in summer, larvae develop in winter, larvae develop in autumn )
- maximum numbers in summer maximum numbers in spring( maximum numbers in summer, maximum numbers in spring )
Northern Hemisphere (temperate)
- winters too cold autumn too dry spring too wet( winters too cold, autumn too dry, spring too wet )
- development occurs in spring development occurs only in summer development occurs only in autumn( development occurs in spring, development occurs only in summer, development occurs only in autumn )
- reaches maximum in autumn reaches maximum in summer reaches maximum in spring( reaches maximum in autumn, reaches maximum in summer, reaches maximum in spring )