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Mythimna unipuncta, the true armyworm moth, white-speck moth, common armyworm, or rice armyworm, is a species of moth in the family Noctuidae. The species was first described by Adrian Hardy Haworth in 1809. Mythimna unipuncta occurs in most of North America south of the Arctic, as well as parts of South America, Europe, Africa, and Asia. [1]
Larvae pupate in the ground soil, at a depth of 5 to 10 cm; pupae are mahogany brown and are about 16–18 mm in length and 5-6mm in width; duration of the pupal period is about 11–13 days. Female pupae may have difficulty in transforming into adults. [10] There is also sexual dimorphism between the female and male pupae.
One such species is the shivering pinion (Lithophane querquera), whose larvae commonly feed on other lepidopteran larvae. [20] Moreover, many noctuid larvae, such as those of the fall armyworm ( Spodoptera frugiperda ) and of genera such as Heliothis and Helicoverpa , aggressively eat their siblings and often other species of caterpillar.
According to K-State, the true armyworm usually comes out in late spring. You can identify a true armyworm larvae by its greenish brown body with a stripe and yellowish head. The true armyworm ...
Mythimna separata, the northern armyworm, oriental armyworm or rice ear-cutting caterpillar, is a moth of the family Noctuidae. It is found in China, Japan, South-east Asia, India, eastern Australia, New Zealand, and some Pacific islands. It is one of the major pests of maize in Asia. [1] The species was first described by Francis Walker in 1865.
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The African armyworm (Spodoptera exempta), also called okalombo, kommandowurm, or nutgrass armyworm, is a species of moth of the family Noctuidae. The larvae often exhibit marching behavior when traveling to feeding sites, leading to the common name "armyworm". [ 1 ]
African armyworm (Spodoptera exempta) (Africa) Fall armyworm (Spodoptera frugiperda) (North and South America) Lawn armyworm (Spodoptera mauritia) Some Mythimna including: Common armyworm or true armyworm (Mythimna unipuncta) (North and South America) Northern armyworm, Oriental armyworm or rice ear-cutting caterpillar (Mythimna separata) (Asia)