Speaking of ladybugs, everyone gives a thumbs up, praises it, and compliments it. Most of the ladybugs are friends of humans, and a few are also harmful, but how many types of ladybugs are there? Which ladybugs are really our human friends? Which ladybugs are harmful to us humans? Today, Xiaobian will take you to correctly understand ladybirds, distinguish the interests of ladybirds, rationally use ladybirds, and serve agriculture.
First of all, there are some species of ladybugs: seven-star ladybug, two-star ladybug, four-star ladybug, six-star ladybug, double seven ladybug, nine-star ladybug, ten-star ladybug, eleven-star ladybug, twelve-star ladybug, thirteen-star ladybug, fourteen-star ladybug, twenty-eight-star ladybug, knife horn ladybug, big red ladybug, red ring ladybird, longitudinal ladybug, six-spotted shield ladybug, bright broad shield ladybird and so on.
Seven-star ladybug
Basically what we usually call a ladybug is a friend of humans, it refers to the seven-star ladybird, its elytra red or orange-yellow, with 7 irregular black round spots, one of which is indirectly spelled out of two elytras. Born 4-5 generations old. It is found in fields, woods, orchards, and is fond of small insects.
Two-star ladybugs
Two-star ladybird, beneficial insect. Body length 4.5-5.3 mm; Body width 3.1 to 4.0 mm. The perimeter of the body is oval, the head is black, there is a semicircular yellow-white spot on the inside of the compound eye, the compound eye is black, the antennae are yellowish brown, the lip base is white, and the upper lip is black. The dorsal plate of the forebreast is yellowish-white with an "M" shaped black spot, sometimes the black part expands into a large spot. In March and April, the activities began, moving into wheat fields to hunt wheat aphids and breed, and the wheat fields in Weibei Yuan District and Northern Shaanxi Spring Wheat Area occurred in a large amount
Four-star ladybug
Four-star ladybugs are beneficial insects, most of the time in eating small pests, there are four red spots on the back, two large and two small, can fly, the general body is black, there are red spots, there are black wings, there are also red elytra wings, with black spots of species, can fly away when encountering predators.
Six-star ladybugs
It is a beneficial insect, except in winter, adult insects often feed on aphids among plant clusters, and are more common in early spring, but not many. The wing sheath is black , with a total of six yellow oval spots on the wing sheath , distributed in twos, four from the top to the bottom. Body length 3.5 to 4.3 mm. There are 2 white spots on the dorsal plate of the forebreast, and the wing sheath is black, with 3 large yellow round spots on each side.
Double Seven Star Ladybug
Double seven-star ladybirds, ladybirds, are also more common in farmland, preying on aphids, and of course, beneficial insects. The elytra are black, each with 7 maculas, arranged in rows of 2, 2, 2, and 1. The ventral surface is black, with margin folds and the posterior flank of the mid-thorax, the posterior half of the posterolateral chest flank, and the outer flank of the first web are yellow. The anterior and midfoot segments are reddish-brown at the ends of the femoral segments and tibia, and the ends of the posterior tarsal segments and tibias are reddish-brown. The tarsal claws are black.
Nine-star ladybug
Nine-star ladybirds are 4.5 to 5 mm long. The dorsal side of the head is pale yellowish brown; the beneficial insect, the background of the dorsal plate of the forebreast is light brown with a pair of large black spots; the base color of the wing sheath is orange-yellow to orange-red, with four black round spots on each side, and another black round spot at the end of the near junction that spans both wings.
Ten star ladybugs
Ten star ladybirds are also known as ten star ladybird leafhoppers, ten star leafhoppers or goldenrods. It belongs to coleoptera, leafhopper family. Adults are 9–14 mm long and 7–9.8 mm wide. In the areas where it occurs in China, most of them are 1 generation per year, and a few are 2 generations. The ten-star ladybird leafhopper eats the buds and leaves of the plant with adults and larvae. The leaves are often bitten into holes, and when they are born, they all eat all the flesh of the leaves, leaving only the veins of the leaves, and those who eat plants should of course belong to pests.
Eleven star ladybugs
Eleven-star ladybirds are plant-feeding ladybirds that mainly harm solanaceae plants, and are one of the few pests among ladybirds. It is an arthropod phylum, insectoid genus Coleoptera, Ladybird family, Ladybird subfamily, Ladybird family small ladybird species, with eleven stars on the back, hence the name eleven star ladybird. Ladybirds, in entomology, belong to the family Coleoptera. Because its shape is very similar to the gourd scoop used to hold water, it is called a ladybug. The ladybug's body is small, the size of a soybean. It is a small beetle like a half-round ball, hard wings, bright colors, and there are many black or red markings, which are cute, and some areas in China call it "Red Lady", and some areas call it "Flower Sister".
Twelve star ladybugs
Twelve star ladybird, beneficial insect, body length 7 ~ 8 mm. The shape is relatively rounded, with 1 to 4 black spots on the dorsal plate of the anterior thorax, and the center of the 4 black spots in front of the wing sheath is more backwards. This species is also similar to the twelve-star individual of the eggplant 28-star ladybird, but the dorsal plate of the forethia of this species can reach 7 black spots, the end of the wing sheath is narrower, and the 2 black spots in the center of the front of the wing sheath are more backwards.
Thirteen star ladybugs
Both larvae and adults are beneficial insects that prey on cotton aphids, locust aphids, wheat tube aphids, bean long tube aphids, wheat bicha aphids, millet aphids, lotus tube aphids and other pests. The elytra have a base color of reddish yellow to brownish yellow , and there are a total of 13 black spots on the two elytra , one of which is located near the small shield in the sheath slit , and 6 black spots on each elytra. The ventral surface is mostly black, the margins are orange-yellow, the median and posterior thorax is yellowish-white, and the lateral margins of the abdomen are partly yellowish-brown
Fourteen star ladybugs
Fourteen-star ladybirds are insects of the Coleoptera family Ladybird family, beneficial insects, with a body width of 3.8-4.5 mm, 7 milky white spots on one elytra, and a black shiny back. Body width 3.8-4.5 mm. The fourteen-star ladybird stripes vary a lot and are also very large. Typical fourteen-star ladybirds, the elytra wings are brownish yellow, and each elytra has 7 milky white spots. The back is black and shiny, each upper wing has three longitudinal columns along the rendezvous line and four along the outer edge of the pale yellow stripe, the anterior margin and sides of the anterior thorax dorsal front, tibia, shin segment, antennae, etc. are yellow-brown, and the body length is about 2.8mm.
Twenty-eight star ladybugs
Twenty-eight star ladybird is a typical harmful ladybug that harms vegetables, it is a potato ladybird and eggplant twenty-eight star ladybird collectively, mainly to harm eggplant and potatoes. The typical feature of the twenty-eight star ladybird is that there are 28 black spots (black spots) on the back, which is the most significant difference from other ladybirds, and belongs to the Coleoptera family in entomological classification, commonly known as flower sister and flower daughter-in-law.
Knife horn ladybird
Knife horn ladybird, beneficial insect, body length 1.65-2 mm. The perimeter of the body is short ovate and the body is protruding from the shoulders. The back is shiny and covered with sparse fine hairs. The head is brownish red ; the dorsal plate of the forebreast is black brown and the outer horns are brownish red; the small shield and elytra are black brown.
Big Red Ladybird
The big red ladybird, a beneficial insect, is nearly rounded and helmet-shaped. The head (except for the eyes) has a dorsal plate of the anterior thorax, a small shield and feet that are yellowish-red, and the ventral parts are also yellowish-red.
Red ring ladybird
Red ring ladybird, ladybird family, the body of the insect is oblong, nearly parallel on both sides, curved arched, covered with yellowish-white fine hairs. The head is black , compound eyes are black and often have light-colored circumferences. The anterior and lateral margins of the dorsal plate of the anterior thorax are red. Small shield black. The circumference of each elytra is red. The ventral part is black in the center and red in the rest. The basal segments of the foot are black and the rest of the foot is red. The anterior portion of the anterior thoracic web longitudinal line is nearly parallel and perpendicular to the anterior margin of the rumble. The posterior baseline extends before reaching the middle and bends to reach the leading edge.
Longitudinal ladybirds
It is a body length of 4.0 to 5.0 mm and a body width of 3.2 to 3.8 mm. The body is oblong and oblong, flattened and raised. The head is black , with a yellow spot on the inside of the compound eye , connected to the small macula in the lower recess , with dark brown antennae and black mouthparts. The middle of the dorsal plate of the anterior thorax has a wide black spot, with pointed protrusions at both ends of the anterior margin, yellow stripes on the anterior, lateral and anterior margins, and extends to the ventral margin to form a large triangular spot. Small shield black, triangular. Elytra are yellow with a broad black stripe along the shoulder blade from the base, extending backwards to the proximal end;
Six-spotted shield ladybird
Hexamorphs are insect names, coleoptera, ladybirds. Distributed in Hebei, Shaanxi and other regions. Host insects include wheat aphid, thistle aphid, wheat bi fork aphid and so on. Adults and larvae are carnivorous, feeding on a variety of aphids and psyllids, which are of course beneficial insects.
Bright-colored broad shield ladybug
The bright-colored broad-shield ladybird is also called the four-spotted broad-shield ladybird, a beneficial insect, with a body length of 2.9-3.5 mm and a body width of 2.1 to 2.9 mm. The body is ovate, hemispherically arched, and densely covered with fine villi. The head is brownish yellow with a slightly darker leading edge (male) or black brown to black (female). It is found in Taiwan, Guangdong, Guangxi, Myanmar, India, and Japan.
Understand aphids, serve agriculture, in agricultural production, in addition to the ten star ladybug, eleven star ladybird, twenty-eight star ladybird is harmful to agricultural production plant-eating pests, the rest of the basic can be used as aphids and other pests of natural enemies to use, better serve agricultural production.
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