Red-brown weevils are very different from bamboo elephants.

1. Different families and genera

Red-brown weevil is an animal belonging to Bambusoideae.

Bamboo elephant is an insect of Arthropoda, Insecta, Coleoptera and Elephantidae.

2. Different crops are harmed.

The red palm weevil mainly harms oil palm, coconut and date palm, and it is also found in Shenzhen and Hong Kong. Larvae burrow into the trunk to feed on soft tissue, and severely damaged plants will lead to death.

Bamboo elephant harms Phyllostachys pubescens, Cinnamomum cassia, Phyllostachys pubescens, Phyllostachys pubescens, Phyllostachys pubescens, Phyllostachys pubescens, Phyllostachys pubescens, Phyllostachys pubescens. Adults feed on bamboo shoots, while larvae harm bamboo shoots.

3. Different distribution

The reddish-brown weevil is distributed in Guangdong, Guangxi, Hainan, Yunnan, Fujian, Taiwan Province and other provinces.

Bamboo elephants are distributed in Shaanxi, Zhejiang, Jiangxi, Fujian, Taiwan Province, Hunan, Guangdong, Guangxi and Sichuan.

Step 4: Different shapes

Red-brown weevil larvae are 40-45 mm long, yellow-white, with dark red-brown head, fat body, spindle shape and degraded chest and feet. The adult is 30-35 mm long and 12 mm wide, and its body is reddish brown, bright or dark. The front end of the head extends into a beak shape, the front edge of the chest is small, and it gradually widens to the back edge, slightly oval; There are six small black spots on the back, arranged in two rows. Coleoptera is shorter than the abdomen, and the abdomen is exposed. The ventral surface of the body is black-red, the basal joints and trochanteric joints of each foot are black, the ends of the leg joints and tibial joints of each foot are black, and the tarsal joints of each foot are dark brown. Tentacles and beadstalks are dark brown, while tentacles are reddish brown. Eggs are milky white.

The bamboo elephant is prismatic, and the female insect is 17mm long, milky white to light yellow. The head tube is 6.5mm long, black, slender and smooth. The male worm is 15mm in length and reddish brown. The head tube is 5 mm long, thick and short, with prickly protrusions. Blackhead; The antenna is placed in the antenna slot at the bottom of the head tube, and the rear edge of the front chest backboard is bent into a "bow" shape with spindle-shaped black spots in the middle; The chest and abdomen are black. There are 9 longitudinal grooves composed of engraved points on the sheath wing, and there are two black spots on the wing, and the shoulder angle and the inner angle of the outer edge are black. The distal abdominal segment is exposed to COLEOPTERA, with 5 segments on the ventral surface, and black and reddish-brown triangular spots on both sides of the L segment and the distal abdominal segment. The egg is ovoid with a long diameter of 3. 1mm, and the primary egg is jade white and opaque. After hatching, it gradually becomes milky white, and half of the eggs before hatching are translucent. The newly hatched pup is 3mm long, soft and transparent, milky white, and the topline is white. The mature larvae are 20 mm long and grayish brown. The head is reddish brown, the mouthparts are black, the body is wrinkled, the petals are not obvious, the topline is light yellow, and the tail has dark yellow protrusions. The pupa is 15mm long, dark yellow, with black wings and hard and protruding gluteal spines.