Parapoynx stagnalis
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Parapoynx stagnalis is a species of moth in the family Crambidae. It is commonly known as the rice case bearer. This species is found in various regions, including parts of Asia and Australia.
Description[edit | edit source]
The adult moths of Parapoynx stagnalis have a wingspan of approximately 20-25 mm. The forewings are typically white with brownish or greyish markings, while the hindwings are predominantly white. The larvae are aquatic and are known to construct cases from plant material, which they carry around as they move.
Habitat[edit | edit source]
Parapoynx stagnalis is commonly found in wetland areas, including rice paddies, ponds, and marshes. The larvae are aquatic and feed on various aquatic plants, including species of rice (Oryza sativa).
Life Cycle[edit | edit source]
The life cycle of Parapoynx stagnalis includes several stages: egg, larva, pupa, and adult. The larvae are case-bearers, meaning they create protective cases from plant material. These cases provide protection from predators and environmental conditions. The pupation occurs within these cases, and the adult moths emerge to continue the reproductive cycle.
Economic Importance[edit | edit source]
Parapoynx stagnalis is considered a pest in rice cultivation. The larvae feed on the leaves and stems of rice plants, which can lead to significant crop damage and yield loss. Effective management strategies are essential to control the population of this pest in agricultural settings.
Control Methods[edit | edit source]
Various control methods are employed to manage Parapoynx stagnalis populations in rice fields. These include cultural practices, biological control using natural predators, and chemical control with insecticides. Integrated Pest Management (IPM) strategies are often recommended to minimize the impact on the environment and non-target species.
Taxonomy[edit | edit source]
Parapoynx stagnalis belongs to the genus Parapoynx within the family Crambidae. The species was first described by Francis Walker in 1859.
See Also[edit | edit source]
References[edit | edit source]
External Links[edit | edit source]
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Contributors: Prab R. Tumpati, MD
