Acanthacris ruficornis （Fabricius， 1787） （Acrididae） Christiaan Kooyman Green Pest Control Services， Nanyuki， Kenya; cckooyman@gmail.com Acanthacris ruficornis citrina （photo by M. Lecoq） OTHER COMMON NAMES Garden grasshopper （En）， Parare-bustani （Swahili）. IDENTIFICATION AND DIAGNOSIS Large species with two subspecies： A. r. ruficornis female 5-6.5 cm long; 世界直翅目害虫百科全书2019-1_zw1.indd 3 2020/1/9 9：13：02 4 Encyclopedia of Pest Orthoptera of the World male 3.5-5 cm; A. r. citrina Female 7.5–9 cm long; Male 5.5–6.8 cm. The colour of the former subspecies is light brown with very dark brown spots on pronotum and tegmina， while the latter is very light brown to yellowish with lighter dark brown spots or hardly any. There is a tendency for individuals to be lighter coloured in drier areas and darker coloured in wetter areas. Nymphs are characteristically mottled darker and lighter green with white spots and lines on pronotum， legs and abdomen. Larger nymphs may be mottled brown. Adults of this species can be di...
