What does it mean for crickets to scream at home?

Crickets chirping at home is not a sign.

First, the reason why crickets call:

1. Crickets dig holes and usually live on the ground, under bricks and stones, in soil holes and in grass. Go out at night. Omnivorous, eating all kinds of crops, saplings, vegetables and fruits. Some behaviors of crickets can be induced by specific external stimuli.

2. Crickets are withdrawn and generally live independently. They are never allowed to live with other crickets (males also live with another female when mating), so they can't tolerate each other. Once they meet, they will fight. A male cricket can live with many female crickets.

Every breeding season, male crickets will shake their wings harder and make beautiful sounds to attract the opposite sex.

Second, the morphological characteristics

1, crickets are mostly small and medium-sized and a few are large. The body length of cricket is more than 3 mm; Body color changes greatly, mostly yellowish brown to dark brown, or green, yellow and so on. There are few uniform body colors, most of which are variegated. The body has no scales.

2. The mouth type is lower mouth type or protruding type. Antennas filiform, much longer than body length; The antenna stalk is mostly shield-shaped, narrower than or equal to the frontal process; A few groups are long shield-shaped, larger and wider than the frontal process.

3. The compound eye is large, generally1/4 ~1/2 with the head length; Generally, there are 3 single eyes, which are arranged in an inverted triangle or a straight line; The middle monocular is located on the back of the head and face or at the top of the frontal process. Tan to dark brown.

Three. Introduction to cricket

1, cricket (xoshuà i) (gryllululus; Invertebrates, Insecta, Orthoptera, Cricetoidea. Also known as promoting weaving, commonly known as cricket, nocturnal singing insect (because it sings at night), general insect, autumn insect, cockfighting, promoting weaving, ground horn, stove chicken, Sun Wang, soil thorn, "monk" is the name of cricket before it gives birth to wings.

2. According to textual research, cricket is an ancient insect with a history of at least 65.438+0.4 billion years, and it is still the object of struggle between ancient and modern times.

3. There are 22 subfamilies, 55 families, 595 genera (including 17 fossil genera) and about 4649 species (subspecies) (including 50 fossil species) in the world.

4. Insects of this family are more than 3 mm long and have no scales; Antennas are filiform and longer than the body; There are three tarsal joints, the forefoot is the walking foot, the tibial joint often has tympanic membrane auditory devices, and the hind foot is the jumping foot;

5. Most male insects have vocal structures on their front wings; Female spawning petals are developed, which are knife-shaped, spear-shaped or long-plate-shaped.