Medicinal Plant Pests
Scientific name Papilio polytes Linnaeus Lepidoptera, Papilionidae. Alias ​​leucorrhizal butterfly, black swallowtail butterfly, dragonfly butterfly and so on. Distribution from Beijing, Taiyuan, Xi'an, Zhangchuan, Gansu, south to Taiwan, Hainan, Guangdong, Guangxi.
Hosts such as Campanulaceae, citrus, pepper, pepper and other Rutaceae.
The characteristics of the damage with the orange butterfly.
Morphological characteristics Adult body length 25-28mm, 95-100mm wingspan. All black. The head is larger, compound eyes are dark brown, and the antennae are rod-shaped. There are 10 small white spots on the back of the chest and they are in 2 columns. There are 7-9 yellow-white spots on the outer edge of the male forewing, larger in the near gluteal angle; the outer edge of the hind wings is wavy, with tails protruding, and there are 7 yellow-white spots in the middle of the wings. . There are two types of female: macular type and male-like, there are several half-moon-shaped dark red spots near the outer edge of the hind wings, or 1 deep red eye pattern in the hip angle; the red-spotted fore wings have no markings on the outer edge, hind wings On the inside of the rim, there are 6 dark red, yellow, and half-moon spots, and 4 large, yellow and white spots in the middle. Oval, 1.2 mm in diameter, pale yellowish-white at the beginning, dark yellow afterwards, grayish black to purple-black before hatching. The larvae are 45mm long, yellowish-brown heads, greenish-green to dark green, and 1 pair of purple-red stinky horns in the anterior chest. The posterior thoracic hypertrophy and the first abdominal segment healed. The posterior chest had 1 tooth-shaped black transverse stripes. There were 4 gray-purple spots in the middle with black eye spots on both sides. There was 1 black transverse band on the leading edge of the 2nd abdominal part; 4 There are 1 black-brown oblique belts on both sides of the abdominal section of the abdomen and 5 yellow, green, purple, and gray spots on the sides of the abdomen; and 6 oblique patterns on each side of the abdomen. The larvae were 5 instar: yellowish-white in early age; yellow-brown in 2nd age; dark brown in 3rd instar. The body of the 1-3 years old body has protuberant protrusions and light-colored markings, which resemble bird droppings; the fourth-year-old oil is green, and the markings on the body are similar to those of mature larvae. The length is 30mm, and the body color is changeable. There are grayish brown, grayish yellow, grayish black, grayish green and so on. There are l protrusions on both sides of the head and on the chest and back. The thoracodorsal protrusions on both sides are slightly protruded like water chestnuts.
Living habits Henan born 3-4 generations, Zhejiang, Sichuan, Jiangxi 4-5 generations, Fujian, Guangdong 5-6 generations, with quail in branches and citrus leaves back and other sheltered winter. The occurrence period of each generation of adult worms in Huangyan, Zhejiang Province was in the order of mid-May in mid-May; mid-late June; mid-late July; late August; and mid-late September. The adult offspring of each generation in Guangdong are in the order of mid-March; early April to early May; late May to mid-June; late June to July; late July to early October; late October to November . With the 6th generation, the winter is over and winter is 103-12l days. Adult and larval habits are similar to those of orange swallowtails.
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