What is the difference between a common cricket and a cricket?

Crickets and katydids are two insects that we often see in our daily life but are easy to confuse. At first glance, they are similar in shape, making it difficult to distinguish them for a while. Let me tell you the difference between cricket and grasshopper today!

We know the difference between crickets and katydids from the following aspects.

1. Biological taxonomy

Crickets are insects, Orthoptera, Crickets superfamily.

Grasshopper is an insect class, Orthoptera, Tettigoniidae, some large insects general name.

2. Daily common name

Crickets in our lives are also known as: promote weaving, crickets, night insects, general insects, autumn insects, cockfighting, promote weaving, tend to weave, to the trumpet, stove chicken, Sun Wang, soil sting.

The other names of katydids are: oil gourd, trace, katydids, oil seeds, katydids, soil dogs, barking, soil cockroaches, fleas, good children, etc.

3. Morphological characteristics

Cricket head round, chest width, compound eyes larger, generally 1/4~1/2 of the head length; monocular generally 3, was inverted triangular or linear arrangement. The antenna is slender and longer than the body length. Small and medium-sized, a few large. The total body length is more than 3mm; each foot has 3 pairs of tarsus, the front two feet are almost the same, and the hind limbs are developed. Mainly yellow brown or black brown. There are no scales throughout. The mouthparts are chewing. Some big jaws developed, stronger than bite fight, ancient people to fight crickets for fun.

Grasshopper head large, broad body, the lower edge of the back has yellow edge. Two compound eyes and three monocular eyes. Common body color is green, a few are brown. Grasshopper insects are slightly larger than males, about 40 to 50 mm, while male insects vary in size from 30 to 40 mm. Its tentacles are up to 60mm long and are generally longer than its body length. 4-4-4, 1-3 with pads, 6 hindfoot tibials, 2 dorsal, 4 ventral, 2 middle. The hindfoot is slightly longer than the tibia.

4. Growth and reproduction

Crickets and katydids both go through the process from egg to nymph to adult, belonging to incomplete metamorphosis.

Crickets generally lay their eggs in the soil at the edge of fields and haystacks. The eggs need to winter. Yields. The eggs are generally laid in October and hatch into nymph in April and May of the following year. The nymph molts 6 times, 3~4 days each time, and it takes 20~25 days to mature into an adult. The adult life span is 141~151 days.

Grasshopper will also lay eggs in the soil winter, scattered. April of the following year. The egg stage is 244 - 669 days. The nymph shed its skin 4 times. The adult began to mate about 7~13 days after emergence, lasting about 30 minutes. The female began to lay eggs 13~20 days after mating. The oviposition period was very long. It is mainly concentrated in August and basically ends in early October. The average number of eggs laid by female insects is 300, and the life span of katydids is about 80~90 days.

5. Food habits

Crickets are omnivorous animals, usually feeding on buds, tender leaves and roots. The threat to agriculture is greater.

They are also omnivorous animals, but they mainly prey on other insects.

6, common classification

Common species of crickets are: Chinese cricket, large coffin head cricket, oil gourd, Chinese stove cricket.

Grasshopper is divided into green grasshopper, black iron grasshopper, mountain green grasshopper, grass white grasshopper, different color grasshopper, red brown grasshopper, golden grasshopper, blue green grasshopper, colorful grasshopper and white grasshopper according to ornamental body color; it is divided into north grasshopper (Beijing grasshopper, Ji grasshopper, Jin grasshopper, Lu grasshopper) and south grasshopper according to geographical position.

7. Degree of benefit and harm

Cricket is one of the main agricultural pests in China, and it has always been one of the key control objects in farmers 'cultivation. They feed on roots, stems, leaves, fruits and seeds of crops as they grow, causing particularly severe damage to seedlings.

Grasshopper is a kind of beneficial insect, its carnivorous sex is stronger than plant sex. They often prey on pests and are human helpers. There is a growing trend to keep katydids as pets.

The difference between crickets and katydids is roughly introduced here. By comparing them one by one, I found that there are so many differences between the two. Have you learned?