What are the tentacles of pine beetles used for?

Both pine scarabs and scarabs are insects, but they belong to different families and genera.

The pine beetle belongs to the family Longhornidae and is known as Monochamus alternatus. They are long, thin, and usually black or dark brown in color, sometimes with a metallic sheen. The larvae of the pine beetle feed on the localized pine trees and can cause serious damage to the pine trees.

Scarab belongs to the family Scarabidae and its scientific name is Cetonia Aurata. They are shorter and broader, usually green or bronze in color, sometimes with a metallic sheen. The larvae of the beetle feed on decaying plant matter, which is beneficial to the environment.

Therefore, pine scarabs and scarabs are different in appearance, ecological habits and life activities.

Hello dear, pine beetles are pine pests. Insecta, Coleoptera, Weevilidae. Adults are grayish-black, with black and white rectangular spots on their wings.

The larvae are milky white with four protrusions at the end of the body. 1 generation per year, adults appear in 4 May. Larvae, adults eat tree trunks and bark.

Prevention and control method: pay attention to the sanitation of the woodland, improve the growth conditions of the forest, and cut down the dead wood and the excessively tall roots left during the felling. Whereas, Scarab is an invertebrate, insecta, and Coleoptera is an omnivorous pest.

In addition to harming pears, peaches, plums, grapes, apples, citrus, etc., it also threatens to harm willow, mulberry, camphor, privet and other forest trees. The common ones are the bronze beetle, the North Korean black beetle, the brown beetle, the dark black beetle, etc. Scarab is the general term for insects in the family Scarabidae, with more than 26,000 species worldwide.

It can be found on continents other than Antarctica. Different species live in different environments, such as deserts, farmlands, forests, and grasslands. I hope mine is helpful to you and I wish you a happy life!

The antennae are highly sensitive and can capture subtle information such as subtle smells and faint sound waves.

The pine beetle is a dignified man, and it wears a black or brown coat with a metallic sheen and some white spots, which looks simple and elegant. The two short antennae of the male have seven tassels at the ends of each of the two short antennae next to each other Tassel: This refers to a spike-like drooping ornament made of multicolored feathers or silk threads, in this case the tentacles of the beetle. As the mood of the insect changes, the tassel will be fan-like or closed. The first thing one might think of is that this ornate decoration is a highly sensitive sensory organ that captures subtle smells, faint sound waves, and other changes that are imperceptible to humans. And what about females?

The image of the female seems to remind people not to imagine too richly, to think too far. Females, who take on the role of mothers, need at least the same highly sensitive sensory organs as males, if not more. However, the female has only six tassels at the end of her antennae, and it is narrow and short.

So, what is the use of a pair of folding fans for male insects? The scarab's folding fan, like the long horns of the beetle and the shovel-like palate of the spade armor, are all signs of maturity and courtship, but the appearance is different.

The turtle belongs to the order Coleoptera, the family Scarabidae, and is an omnivorous pest. In addition to harming pears, peaches, plums, grapes, apples, citrus, etc., it also harms willows, mulberries, camphor, privet and other forest trees. Common ones are Aeruginosa scarab, North Korean black Scarab, Tawny Scarab, Dark Scarab and so on.

1 For the damage Adult insects bite the leaves into a network of holes and notches, only the main vein is left in serious cases, and it is more serious when the cluster is infested. It is usually eaten at its peak in the evening to 10 p.m.

2 Morphological characteristics.

1) Scarab aeruginosa adult body length 18-21 mm, width 8-10 mm. The back is patina green, shiny, and the prothorax is yellow on both sides of the dorsal plate. The elytra are chestnut reflective and have 3 longitudinal protrusions.

The ventral surface of males is dark brown, and the ventral surface of females is pale yellowish-brown. The eggs are round and milky white. The larvae are called grubs, milky white, fat, and curved into a "C" shape towards the ventral surface, with 3 pairs of thorax and feet, and a brown head (Figure 19).

2) Korean black beetle adult body length 20 25 mm, width 8 11 mm. Black-brown, shiny, elytra black-brown, longitudinal bulge at the confluence of the two elytra, with 3 longitudinal bulge lines on each elytra. The ventral surface of the male distal segment is concave in the middle with a deep transverse groove in front; Females are raised in the middle, and the transverse groove is not obvious.

3) Dark Scarab The adult body is 18-22 mm long, 8-9 mm wide, dark brown and dull. There are 3 longitudinal bulge lines on the elytra. There are short blue-gray hairs on the wings and abdomen, and 4 inconspicuous longitudinal lines on the elytra.

4) Tawny beetle The adult body is about 10 mm long and 4 to 5 mm wide. Taw-brown, densely covered with short yellow-brown hairs. There are 4 inconspicuous longitudinal lines on the elytra.

3 Laws of occurrence.

1) Scarab aeruginosa 1 generation a year. The larvae overwinter in the soil. Bright.

Adults appear in early May and peak in late May. They go up to the trees at dusk and leave after midnight, diving into grass or loose soil and laying eggs in the soil. Adults are swarming, feigned death, and phototaxis, and are most harmful in hot and windless nights.

2) Dark Scarab 1 generation a year. Spend the winter in the soil as larvae and adults. Adults begin to emerge in April of the following year, with the first small peak occurring in late June, with the highest peak in late June. Activity and harmful habits are the same as those of the beetle aeruginosa.

3) Tawny Scarab 2 generations a year. Wintering in soil as larvae. The first generation of adults emerges in early May.

The first and middle months of June are the peak seasons. The second generation of adults emerges in July and flourishes in early to mid-August. Adults have no obvious phototaxis and feigned death, and a small amount can be seen during the day.

4 Prevention and control methods.

Using the habit of feigning death, a film is placed under the tree at night to shake the tree and shake it. Where conditions permit, black light can be used to trap them.

Pesticide control, spray with 90 trichlorfon 800 times liquid or 40 dimethoate 800 times liquid after dusk.

What is the most prominent feature of the pine beetle?

The article "Pine Tree Scarab" is an expository essay in the fourth unit of the second semester of the seventh grade of the Sujiao version of the textbook, "Animal World". The texts in this unit allow students to get in touch with the animal world, learn about some animals, and stimulate their feelings of caring for and protecting wild animals. Through accurate description, vivid, vivid and meticulous description, the article "Pine Scarab" introduces us to the "most talented" pine Scarab, so that we understand the appearance, characteristics, living habits, etc., arouse our attention to the living state of the animal world, and stimulate our enthusiasm for caring for and protecting animals.