![]() ![]() Unlike other insects, armyworm caterpillars of their sixth instar do not excrete uric acid, instead they excrete urea as nitrogenous wastes. ![]() They are considered one of the major international agricultural pests on crops and pastures. The larvae feed on various grasses, including rice, wheat, Cynodon, Pennisetum clandestinum, Sorghum bicolor, Oryza sativa, and trees such as Casuarina equisetifolia. Hindwings opalescent and semi- hyaline white, with a dark marginal line. There is a white patch often can be seen between orbicular and reniform and a dark patch on the central marginal area. Submarginal line whitish and irregularly waved. The orbicular small and ochreous, whereas reniform blackish. Forewings with sub-basal, antemedial and postmedial double waved lines indistinct. It is dark grey brown with a rusty tinge on its body. It is widespread from the Red Sea to India, Myanmar, Sri Lanka, Malaya to Australia and widespread in the Pacific Islands, including the Solomons, New Hebrides, Fiji, Samoa, Hawaii, the Society Islands, Austral Islands, Marquesas and the Marshall Islands. Able to eat many types of food, it is a major pest throughout the world. The species was first described by Jean Baptiste Boisduval in 1833. Spodoptera mauritia, the lawn armyworm or paddy swarming caterpillar, is a moth of the family Noctuidae. Agrotis bisignata Walker, 1865 (preocc.Spodoptera acronyctiformis Guenée, 1852. ![]()
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