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The palm weevil Rhynchophorus ferrugineus is one of two species of snout beetle known as the red palm weevil, Asian palm weevil or sago palm weevil.The adult beetles are relatively large, ranging between 2 and 4 centimetres (1 and 1 + 1 ⁄ 2 inches) long, and are usually a rusty red colour—but many colour variants exist and have often been classified as different species (e.g., R. vulneratus).
The palm weevil Rhynchophorus vulneratus is one of two species of snout beetle known as the red palm weevil, Asian palm weevil, or Sago palm weevil.The adult beetles are relatively large, ranging between 2 and 4 centimetres (1 and 1 + 1 ⁄ 2 inches) long, and vary from a rusty red colour to almost entirely black; many colour variants exist and have led to considerable confusion with other ...
Rhynchophorus, or common name palm weevils, is a genus of beetles in the weevil family, Curculionidae. Palm weevils are major pests of various trees in the family Arecaceae throughout the tropics including: coconut ( Cocos nucifera ), Areca catechu , species of the genus Phoenix , and Metroxylon sagu . [ 3 ]
The South American palm weevil, Rhynchophorus palmarum, is a species of snout beetle. The adults are relatively large black beetles of approximately one and a half inch in length, and the larvae may grow to two inches in length.
Sphenophorus cicatristriatus, Rocky Mountain Billbug Cactophagus spinolae, Cactus weevil from Teotihuacan. The tribe Rhynchophorini is the largest member of the true weevil subfamily Dryophthorinae. Alonso-Zarazaga and Lyal (1999) treated it as a distinct subfamily, Rhynchophorinae (in the family Dryophthoridae). [1]
A weevil's rostrum, or elongated snout, hosts chewing mouthparts instead of the piercing mouthparts that proboscis-possessing insects are known for. The mouthparts are often used to excavate tunnels into grains. [1] In more derived weevils, the rostrum has a groove in which the weevil can fold the first segment of its antennae.
The vector, Rhynchophorus palmarum (the South American palm weevil), [MP 7] carries the dauer [MP 6] /J3 stage to healthy palms. Female weevils are internally infested around the oviducts, when they lay their eggs in the palm they also disseminate the nematode.
Palmetto weevil grubs infesting a Bismarck palm. The palmetto weevil (Rhynchophorus cruentatus) is an insect native to Florida, but has been found as far as southern Texas to the west and South Carolina to the north. [1] [2] It is the largest weevil in North America and the only kind of palm weevil in the continental United States. [1]