Cockroaches are one of the most common species of insects found in the house. They are easily distinguishable with the distinct patterns of color on their bodies. They have a rounded oval shape. They measure from 13 to 40 mm in length.
Roaches are usually varied in colors. The most common ones are brownish, but Oriental ones are black while the German ones are caramel colored. They have compound eyes. They have a pair of antennae.
They also have two pairs of wings. The head is bent inward and downward facing. The head is small in size, and they have six legs. The legs are spiny, and the tips of the legs have specialized pads that enable them to maneuver on almost any surface.
Types of Cockroaches
There are various types of cockroaches. These different diverse species of Cockroaches are of about 4,500 types. Other than that, the most prominent ones are the American Cockroach, the Oriental Cockroach, and the German Cockroach.
Other mentionable names are the Brown Banded Cockroach, the Australian Cockroach, the Cuban Cockroach and the Green Cockroach.
The most common household cockroach species. They can grow up to 53 mm. They are reddish-brown to brown and infest household foods.
Usually found in Asia, they are glossy black. They can grow up to 35 mm. They typically feed on decaying food.
One of the most common species in the world. They are usually 13 to 16 mm long and pale-brown. They live up to 12 months.
Cockroaches are a social species of insects. They usually love to live in the dark. They prefer living in moist or damp places. They become the most active during the night. They usually forage for food and mate during this period.
They can be found infesting the food storage areas. They can also be found in secluded corners of the house like the back of the furniture, appliances and below fridges. They can also fit into wall cracks and cupboards.
They secrete a kind of pheromone called cuticular carbons through their feces and on their skin in order to communicate. Unlike a lot of other insect species, cockroaches can distinguish and avoid mating with their relatives. They are very fast movers.
Cockroaches usually prefer to live in the dark since they are nocturnal. They are generally found to be living in households, garages, basements, boats, attics, showers, the sewer, and many other places.
The most common thing about these places is that they are usually found to be unhygienic and damp or moist at the very least.
On the other hand, the reddish species love to live in warmer temperatures and thus choose to live in the sewers or the kitchen and restaurants. These bugs prefer to stay in wall cracks or crevices.
This tendency of cockroaches is called thigmotropic. It means that they usually prefer to live in contact with solid surfaces. Some species like the wood cockroaches live inside wood logs.
Life Cycle and Reproduction
The life cycle of cockroaches is pretty fascinating and yet they pretty much go through the same growth process as other insects.
There are three stages of the metamorphosis of cockroaches. As soon as the male and the female copulate, the female starts laying eggs.
The eggs are laid inside an egg capsule known as the ootheca. The female detaches the ootheca from its body on to a hard surface after a certain period of time. This varies according to the species.
From then, 6-7 weeks later, they grow into nymphs. These nymphs go through several series of metamorphosis until they turn into adult cockroaches. These series of moldings can occur from 6-15 times. After shedding, the new exoskeleton is soft and transparent.