Search Results for: Male oriental cockroach

Brown-banded cockroach

…brown stripes around pipe penetrations, as these can be excrement from the cockroach. The cockroach is nocturnal as described. Therefore, it only appears in the dark. If you suspect that there are cockroaches in a room, leave the light off for some time. When you suddenly turn on the light, you will probably spot the cockroaches darting across the floor to their respective hiding places. It may be necessary to control the cockroach with chemical p…

The Oriental cockroach

Oriental cockroach male Oriental cockroach, male Latin: Blatta orientalis. The Oriental cockroach is not as common as the German cockroach. It is shiny black and is up to 2.5 cm long. Elytrons are almost entirely missing in the females, but they cover part of the males’ abdomen. The Oriental cockroach cannot fly. It climbs poorly and is mostly found on the floor and often in the boiler room or basement. The preferred temperature is from 20 to 29…

Oriental or common cockroach

( Latin: Blatta orientalis) Oriental– or common cockroach, male Oriental– or common cockroach, female Oriental cockroaches, adults and nymphs among themselves This species is found in the same kind of place as the German cockroach, but usually at an even higher temperature, and it is not as common. The wings are well-developed in the male, but they are reduced to short stumps in the female. The egg capsule contains about 15 eggs, and the female o…

German cockroach

…ot a common phenomenon in Denmark – and yet. In Denmark we find the German cockroach, which is the most common house cockroach here. This pest is related to grasshoppers and crickets and do have common characteristics. Appearance Typically, the German Cockroach, also known by the name Blattella germanica, can be recognized by the oval and flattened body as well their characteristic legs. This species of cockroaches can grow up to 1.6 cm long and t…

(3) The German cockroach and the forest cockroach

Dusky cockroach The German Cockroach The German cockroach is hardly more common in Germany than anywhere else in the world. It lives in the wild in tropical forests. As a synanthrope species in colder regions it favours especially indoor environments that are both warm and humid. Outside the tropical forests the German cockroach lives in bakeries, greenhouses, hospitals etc. It spreads between houses by heat ducts. The forest cockroach tolerates…

Cockroaches

…probably never get totalt rid of them. The Oriental cockrach In Europe the Oriental cockroach (Blatta orientalis) is not nearly as common as the German. It is larger, grows up to 2.5 cm long and is shining black. the females have small elytra, while the elytra of the males almost cover the entire abdomen. Its way of life is largely as the German cockroach, but it requires higher temperatures to thrive. An important difference is that the female is…

Index

…obia rufipes Necrobia violacea Norvegicus, Rattus Obtectus, Acantoscelides Oriental cockroach Oryzae, Sitophilus Oryzaephilus mercator Oryzaephilussurinamens Paniceum, Stegobium Passer domestica Periplaneta americana Pharaoh ant Pharaonis, Monomorium Pigeon, domestic Piophila casei Plasterbeetles Plodia interpunctella Prune mite Pseudopretella,Hofmannophila Psocoptera Psylloides, Gibbium Pteronyssinus, Dermatophagoides Ptinus fur Ptinus tectus Qua…

The German cockroach

…es about 2 months at 30 ° C, whereas it takes six months at 21 ° C. German cockroach, female with egg capsule German cockroaches are most comfortable in moist, warm areas with access to water. They climb well and can be found throughout the rooms from floor to ceiling. Dispersal of the cockroach is quite passive. The insects are transported around in goods or empty packaging. The voids in beer cases for example are good hiding places for cockroach…

German cockroach

…into 30-40 small compartments, each containing a single egg. In the German cockroach the female carries this egg capsule protruding from her genital aperture until the small, wingless young are ready to hatch out. At room temperature the full development to the adult stage takes about 6 months. Cockroaches are practically speaking omnivorous. They are active at night, spending the hours of light hidden in crevices, particularly near warm places, s…

The brown-banded cockroach

…his beetle is actually known as the TV beetle. Egg capsules containing 10-20 eggs, are glued onto the insects’ usual hiding places and this process is similar to that of the Oriental cockroaches. The brown-banded cockroaches’ offspring can therefore hatch long after the adults are exterminated….

Brown-banded cockroach

…Latin: Supella supellectilium) There are several other species of tropical cockroach which may suddenly appear in a warehouse or greengrocer’s shop, having been introduced with goods from warmer regions, but most of them quickly die in northern Europe. The brown-banded cockroach, which is now common in central Europe, has been recorded as breeding in south Devon and more recently in London. It now has a cosmopolitan distribution but probably origi…

Cockroaches

…ns. ( Latin: Sub-order Blattodea) Egg capsules of: German cockroach (top), oriental cockroach, American cockroach, brown-striped cockroach Cockroaches are also regarded as primitive insects, and fossil species known from the Carboniferous period some 250 million years ago are very like those known today. There are about 3,500 different species of cockroaches and the vast majority of these live in the open and almost never come in contact with man….

Dusky cockroach

…only found indoors come from warmer climates. On the other hand, the dusky cockroach occurs throughout Europe from Lapland to the Mediterranean. These small, active cockroaches live mainly in woodland and on heathland where they run around among vegetation on the ground; they also fly well. In Lapland they are very common ‘domestic’ animals in the tents and further south in Europe they may occasionally occur indoors. They are frequently seen in we…

The American cockroach

The American cockroach American cockroach Latin: Periplaneta americana. The large, beautiful American cockroaches are originally from central Africa, but have been shipped to the United States on slave ships. They are seen regularly in food, but do not thrive under Northern European conditions. A similar species the Australian cockroach is also found in food occasionally. Both species can only survive under special circumstances in temperate clim…

Index

…ea Oniscus asellus Ophion sp. Opilio parietinus Opiliones Opilo domesticus Oriental cockroach Oryzaephilus mercator Oryzaephilus surinamensis Osmia bicornis Otiorrhynchus sulcatus Owls Paravespula germanica Paravespula vulgaris Passer domesticus Patchwork leafcutter Peacock butterfly Pediculus humanus capitis Pediculus humanus corporis Periplaneta americana Phalangium opilio Pharaoh ant Pholcus phalangoides Phthirus pubis Phymatodes testaceus Pier…

American cockroach

…American cockroach Lat.: Periplaneta americana A species introduced into Europe with food cargoes. Both sexes have wings which are longer than the body. They thrive in warm places with a high humidity, such as greenhouses and conservatories, but will not tolerate cold or dryness….

American cockroach, Periplaneta americana

…A species introduced into Europe with food cargoes. Both sexes have wings which are longer than the body. They thrive in warm places with a high humidity, such as greenhouses and conservatories, but will not tolerate cold or dryness….

Mating

…just sucked blood. This means that it will also attempt to mate with other males. However, a complete mating with other males is in almost all cases prevented. This is done by a particular fragrance, an alarm pheromone, being released by the harassed male. Like many other insects, bed bugs can communicate by using specific pheromones. The pheromones are released from special scent glands in specific situations, and can trigger a specific behavior…

House cricket

…le. It is only the male cricket that sings and he does so to attract the females. Each male sits in its own little territory and sings, the actual sound being produced by rubbing part of one wing against the other wing. The male also has a short, aggressive piping note, which is heard when another male tries to enter its territory. A love-sick cricket may sing for hours at a time. One industrious zoologist found that a single cricket chirped no le…

Fox

…a triangular face. Like most other mammals, the male is larger than the female. A female fox typically weighs between six and seven kg, while a male fox weighs up to eight kg. Some male foxes can weigh as much as 12 kg. From tail to snout, the fox is about 110 cm long. Biology and behavior Foxes are mainly predators, in the wild they usually hunt animals like, hares, rabbits, deer, birds, and bird eggs. However, they also hunt smaller prey, such…

Rats

…n rat is slightly shorter than the body. Male rats are often larger than female rats. A male rat typically weighs between 250 and 300 g, but they can be much larger. The largest captured rat ever found in Denmark was a wild male rat of 545 gram – over 0.5 kg. The excrement of the brown rat (Rattus norvegicus) is usually 2.0 – 2.5 cm long, blunt at one end and shiny black. The house rat, or the black rat, is slightly smaller than the brown rat. The…

Internal

…ation of the female and finally the transfer of seamen takes place. If the male makes the wrong movements in the dance, the female will perceive him as if he were a different species and reject mating. (Manning 1965). Transport systems for nutrients and oxygen are among the organs that are very different from the equivalents in vertebrates. Insect blood does not run in veins, but runs freely around in the body. The heart is built like a vein of mu…

Brown dog tick

…on that the larvae have only six legs. The development from larva to adult male or female tick occurs through different stages. The newly hatched larva will first search for a host – preferably a dog. The larva selects protected areas on the dog, such as between the toes or inside of the ears. Here they stay for three to six days, where they suck blood, grow spherical and become light gray. They then leave the dog and seek refuge again, and over t…

Faeces

…d by cloth. They are usually deposited as dark, roundish particles. German cockroach excrement everywhere Fly faeces are similar in shape and size to those of bed bugs, but usually somewhat paler. Blood-sucking flies may, however, produce faeces that are almost black. Flies usually deposit their faeces out in the open and often on objects hanging from the ceiling. Clothes moth larvae produce faeces which can be found together with their silken thr…

Methods of treatment in pest control

…sect populations have been successfully controlled by releasing sterilized males in such large numbers that all the females mated with them and subsequently laid infertile eggs. This method would not, however, be suitable for insects in the house. Radioactive irradiation has been used in some places for controlling pests in cereals, but the method is seldom economically viable, partly because the amount of irradiation required to kill an insect is…

5. Non-chemical control measures

…t protect the goods against new infestations by mating with any newcomer females. The females that mate with sterile males will not get offspring that is capable of reproducing. Some use this method for the treatment of grain, but it can hardly be price-competitive compared to fumigation. Single-celled micro-organisms are often less sensitive to radiation of this kind compared to insects and mites. The doses used for the actual radiation-sterilisa…

Bumble bee wax moth

…as it can have a wingspan that can be up to 40 millimeters. The male and female do not look alike. The female is gray-brown with a characteristic black spot in the middle of each of the wings. The male is light gray with dark zigzag bands on the forewings. The larvae of the bumble bee wax moth have a buttery yellow color, while their head is reddish brown. The adult larvae can grow up to 27 millimeters long. Biology and behavior It is not without…

Pigeon tick

…nge skin – until it is finally fully developed as either a sexually mature male or female. If the larva ends up as a male, it only has to worry about having to suck blood from a pigeon once a year. The life of a pigeon tick female is somewhat difficult. Because after mating, she must have a pigeon blood meal for each serving of eggs she lays. A female can lay between 20 and 70 eggs at a time. The hatching takes place after a month. Pigeons ticks c…

Earwigs

…verwinter together in a small hole in the ground. Early in the spring, the male is kicked out and the female decorates the cave as a breeding chamber. The approximately 30 eggs she lays hatch 5-8 weeks later. The offspring resemble the adults but are smaller and do not yet have wings. During the summer, the offspring matures. Earwigs are nocturnal animals, and many new insects are in need of locations, where they can sit dark and protected during…

Biology

…This is repeated a few times and, finally, the tick is an adult male or female. The male only needs to feed once a year. The female needs blood after mating in order to lay eggs. A female European pigeon tick lays 20-70 eggs at a time and the eggs hatch within a month. Long lives. What makes pigeon ticks so difficult to handle is their ability to survive for long periods of time without feeding. The life cycle usually lasts 2-3 years, but in cold…