Cricket (scientific name: Gryllidae) is an ORTHOPTERA of Arthropod, an ancient insect with a history of 65.438+0.4 billion years.
It has no scales, filiform antennae, is longer than the body, lives in caves, often inhabits the ground, under bricks and stones, caves and grass, is nocturnal and omnivorous, and is distributed all over the country.
Cricket is more than 3 cm long; 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. 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.
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.