Search Results for: Female 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…

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…

Oriental or common cockroach

…ntalis) 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 only carries it for a…

(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…

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…

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…

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…

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 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…

An unusual family

…roscope, you will see up to several mites at once. There are both male and female water mites. The fertilized female mite finds an insect larva (or, in the lack of a better host, a human), which she latches onto and then injects the mouth parts into the skin. After a few hours her abdomen swells up and she is sought out by one or more males. The males then spend the rest of their short lives to crawling on large abdomen of the fertilized female. W…

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….

House longhorn beetle

…hich – when she rests – stick out behind her coverts like a small pin. The female places her eggs about 20 millimeters inside the cracks in portions of 20 to 30 eggs. A house longhorn beetle female lays eggs for a few weeks, and during this period she can manage to lay several hundred eggs. The adult house longhorn beetle only lives for 10-15 days. After the larvae have hatched from the eggs, they gnaw into the tree through a small hole. Their jou…

Biology

…ther turned into males or the second nymph stage, which later turns into a female. As a result, the females are larger than males. The female and the male mate in folds of the skin. After mating, the males die and the females burrow into the skin – this takes about half an hour. Here she makes a tunnel which is parallel to the skin surface. Two days later, the first egg is laid. The rest of the female mites’ life is spent laying eggs. At the same…

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….

Internal

…e is near. It performs a complicated dance that ends with palpation 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 f…

Brown dog tick

…ale or female brown dog tick. After this, the life course of the males and females differs slightly from each other. Subsequently, the female is sucked on her host from 6 to 50 days, where she swells a lot, while the male is sucked on his host for a shorter time and does not grow significantly anymore. The males spend more time wandering around the dog’s fur looking for females to mate with. After mating, the brown dog ticks leave their host and t…

Mating

…s freely around the organs. The sperm end up in a couple of pouches on the female’s oviducts, called spermathecae. Here they remain viable as long as the body temperature is normal and there are plenty to fertilize all the eggs the female lays in its lifetime. There is nothing to suggest that the two sexes can recognize each other from appearance, special pheromones or behavior. A male in rut will attempt to mate with other bugs of a certain size…

Fur beetle

…ed on nectar and pollen. However, the larvae cannot live on this diet. The female fur beetle typically lay their eggs in mice or bird’s nests. Here there is plenty of fur and/ or feathers, which the larvae nourish on. The female fur beetle can typically lay between 50 and 100 eggs. The development from egg to adult depends on temperature, food availability and humidity, but their development usually takes over a year. Since both males and females…

Prevention and protection

…sed for research, but they have no practical significance, since it is the female mosquito that bites. The female mosquito’s auditory sense is not well developed, and it has never been proven to be useful. Nevertheless, new devices that claim keep the mosquitoes away using sound are regularly introduced. They send out tones which are not very loud but have a high frequency of about 15000-20000 Hertz. The frequency is so high, that the human ear ca…

Tanbark borer

…either birch or oak. The eggs are placed in the cracks and crevices of the female using the female’s laying pipes. The female chooses dead, felled, or damaged trees with a bark for the placement of her eggs, as her larvae feed on the bast layer between bark and sapwood. Therefore, it is also clear to see if a group of tanbark borer larvae have been at play in a tree. To remove the bark, their passages emerge clearly as small furrows in the wood. A…

Pigeon tick

…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 can live a long life and their normal life cycle lasts between 2 to 3 years. However, there are also reports of large populations of pigeon ticks in G…

Common woodboring beetles

…they begin to mate. This often happens in the female’s fly hole, where the female beetle can lay between 20 and 60 eggs. The female lays her eggs in protected areas consisting of wood. Cracks and holes in woodwork or dead trees are obvious places for laying eggs. As mentioned, she can also lay her eggs inside the fly hole. They prefer to find places with high humidity as this provides the optimal conditions for the eggs. The eggs of the common woo…

Ticks

…body. When the adult male tick is fully grown it is 2-3 mm long, while the female is 3-4 mm long. The mentioned size only applies when they have not been feeding. As soon as the tick have feed their size expands incredibly, and a blood-filled female tick can become 1.5 centimeters long. The blood is stored on the hind body in a reddish-brown and leathery skin. Biology and behavior The population of ticks varies in Denmark. The reason for this is t…

Head lice

…The life cycle of a head lice is quite short. From the moment a head lice female comes out of the egg, until she dies, it takes about three weeks. Already after 9-12 days after the female lice have hatched, she can even start mating and laying eggs. And until her death, she can lay between five and eight eggs a day. As described, lice can neither fly nor jump. But that does not mean that they cannot move quickly around the hair. For this purpose,…