The animals are quite disgusting and always inside the house is a cockroach turned out to have a very unique life. From laying eggs, being a baby cockroach, a teenage cockroach to growing into a very unique adult cockroach, learn more about this article
Cockroaches are insects with oval body shape, flat dorso-ventral. Its head is hidden beneath the pronotum, complemented by a pair of compound eyes and a single eye, a long antenna, two pairs of wings, and three pairs of legs. Pronotum and wings are slick, hairless and not scaly, brown to dark brown.
Types of cockroaches
In the world there are approximately 3,500 species of cockroaches, 4 (four) species of which are commonly found in the house: Periplaneta americana (American Cockroach), Blattela germanica (German Cockroach), Oriental Cockroach, and Supella langipalpa (Brown Banded Cockroach) to the four species of cockroaches from egg capsules, nymfa and adult.
Cockroaches are insects with incomplete metamorphosis, only through three stadia (stage), ie the stages of eggs, nymph stages and adult stages that can be distinguished between male and female. The nymph usually resembles that of an adult, except its size, while its wings and genitals are in a state of development.
30 – 86 Caps per cockroach with interval placement every 3 – 5 days
The cockroach eggs are in a group covered by a hard membrane covering the cockroach egg group known as the egg capsule or “Ootheca”. The egg capsule is produced by the female cockroach and placed in a hidden place or at the corners and the surface of the wooden block to hatch within a certain time known as the incubation period of the egg capsule, but in other species the egg capsule remains attached to the tip of the abdomen until it hatches. The number of eggs and the incubation period of each egg capsule differ by species.
From the fertilized egg capsule will hatch into a living free and active live nymph. The new nymph comes out of the white egg capsule like a rice grain, then gradually turns brown, The nymph evolves through a series of instars with multiple cuticle turns so that it reaches the adult stage. Periplanetta americana The adult Linnaeus can be known by the change from the wingless at the nymph stage to the winged at its adult stage in adult P.Americana there are two pairs of wings in both the male and the females.
Life cycle Periplaneta brunnea Burmeister in laboratory conditions with a temperature of 29 º C, and moisture 78% to 7 months, consisting of incubation period of egg capsule on average 40 days, the development of nymph stage 5 to 6 months.
The incubation period of P.americana egg capsule is on average 32 days, the development of incubation nymphs between 5 to 6 months, adult insects then populate and one week later produce the first egg capsule so that the P americana life cycle takes an average of 7 months.
The life cycle of Neostylopyga rhombifolia (Stoll) reached 6 months, covering an incubation period of an average egg capsule of 30 days, the development of nymphs between 4 months and 5 months. The adult insects then populated and 15 days later the females produced an egg capsule.
The life cycle of Periplaneta australasiae (Fabricius) lasts 7 months, covering an incubation period of an average 35-day egg capsule, the development of nymph takes between 4 months to 6 months, adult insects then populate and 10 days later the females produce the first egg capsule.
Many species of cockroaches around the world, some of which are indoors and often found in restaurants, hotels, hospitals, warehouses, offices and libraries.
Habits of Life
Cockroaches are mostly found in tropical regions, which then spread to sub tropical regions or to cold areas. In general, live in the houses of all kinds of ingredients, contaminate human food, smells unpleasant. Most cockroaches can fly, but they are classified as “cursorial”, fast moving, active at night, incomplete metamorphosis, damage caused by relatively few cockroaches, but the presence of cockroaches indicates that sanitation in the home is not good.
The relationship of cockroaches with various diseases is unclear, but it causes quite serious disruption, as it can damage clothing, books and contaminate food. The possibility can transmit the disease mechanically because it has been found eggs worms, protozoa, viruses and fungi are pathogens in the body of a cockroach.
An adult female brunnea P may produce 30 or more egg capsules at intervals of laying down one egg capsule with the subsequent laying of the egg capsule ranging from 3 to 5 days; each P.brunnea egg capsule contains an average of 24 eggs, which trickle an average of 20 nymphs and 10 of them can reach adult stages. The nymphs of P. brunnea develop through a series of instars with 23 cuticle changes before reaching adulthood.