Search Results for: Bamboo beetle - Chlorophorus annularis

…s Rattus norvegicus Rattus rattus Rat, black Rat, brown Red-breasted copra beetle Red-legged ham beetle Reesa vespulae Rhyzopertha dominica Rice weevil Rock dove, European Ruficollis, Necrobia Rufipes, Necrobia Rust-red flour beetle Rust-red grain beetle Saccharina, Lepisma Sarcophaga, carnaria Saw-toothed grain beetle Serricorne, Lasioderma Silverfish Siro, Acarus Sitophilus granarius Sitophilus oryzae Sitophilus zeamais Skin beetles Skipper, che…

…but in Denmark, at least in comparison with other pests. Destructive flour beetle beetles were first found in Denmark in 1943, but they have since appeared more often. The Destructive flour beetle most likely came to Denmark from the tropics in Africa in connection with trade of goods between the two places. Anyhow it has also occurred in other countries that have traded with this part of the world. In Danish, the Destructive flour beetle is named…

…e can grow up to 8 millimeters long. Biology and behavior The brown carpet beetle is a beetle in the subfamily (Attageninae), which all share the same common feature. They live on the dry remains of plants and animals and are not unwilling to consume all that is left by other animals. The brown carpet beetle originates from Africa, where the temperature is somewhat different than in Denmark. This affects the beetle. It thrives best at temperatures…

…tles in roof constructions and other timber. Appearance The house longhorn beetle is a beetle that can grow 10-20 millimeters long. The beetle comes in several color variations that change from the light brown to the completely black. One of the most characteristic features of the house longhorn beetle is its woolly, whitish hair on both the back and fore chest, which forms two oblique whitish spots. On the chest it also has two shiny knots. The h…

…place the wood with treated wood, such as pressure-impregnated timber. However, it is also possible to treat the wood with a wood preservative that protects the wood from both insect and fungal attacks. In hard-to-reach areas, it can be an advantage to treat with an insect powder that is distributed on the areas where the beetle moves. It will kill the beetles before they have time to lay their eggs….

…ir own whitish cocoon in which they pupate. The cocoon has an almost tissue-paper-like appearance, and the webs of the larva can be seen as thin threads and spun cocoons in the infested area. The development from larva to fully adult thief beetle lasts about 3 to 4 months if the larva has good conditions e.g., at room temperature. When the larvae are fully developed, they most often leave this safe area. This means that they sometimes have to clim…

…ow as Anobiidae. The size of the tobacco beetle is around 2-3 mm and a full-grown beetle can measure up to 4 mm. Therefore, we are talking about a very small beetle, that is difficult to spot. The tobacco beetle has a light brown color at the front and shield as well as long light brown hairs that are most evident on its legs. Its head is hidden under the neck shield. Biology and behavior The tobacco beetle thrives in a tropical or subtropical env…

…n also easily see the difference between the three kinds. Overall, the ham beetle is 4-6 millimeters long when fully developed. Like other insects, the ham beetle has six legs. Ham beetles have long hind bodies, while they are shorter in front. You can see the difference between the three different species in Denmark in their color. The first is a red-legged ham beetle, also called Necrobia rufipes. The red-legged ham beetle naturally has red legs…

…or Although the wasp beetle tries its hardest to look like a wasp, it is a beetle. The wasp beetle is thus neither aggressive nor dangerous, but it tends to restless behavior, which can seem annoying to the people who do not like beetles and similar small animals. Before they are fully grown, wasp beetles also undergo a larval stage. While they are larvae, they prefer to stay in dead, dry deciduous tree in which they have hatched. It is only as ad…

…ns. Under the bark, the larval passages will stand out clearly as approx. 1-millimeter-deep grooves, forming a large pattern in the wood. However, the grooves may be deeper than that. Just before the larva pupates, it gnaws even further into the tree. The larva digs approx. 1 centimeter down into the wood to achieve a more protected position in the tree. Within one to two years, the soft wood boring beetle is fully developed, and it is getting rea…

…ecognize, size wise they are up to 1 cm long. One can take the ordinary fur- or carpet beetle larvae as a brown carpet beetle larva, as they are related. The easiest way to distinguish in between them, is by the location where they are found. If the larva is found indoors, it is most likely the brown carpet beetle larva. A common carpet beetle larva is typically found outdoors. Biology and behavior During the summer, one can find the fur beetle ne…

…ld. The bread beetle larvae grow up to about 5 millimeters long. They are c-shaped, are white-yellow in color, and in addition are equipped with rather small legs. Biology and behavior The life cycle of an adult bread beetle is not exceptionally long and lasts only up to 2 months. During this time, a female bread beetle can lay about 100 eggs. It takes between 1 to 2 weeks before the small larvae hatch from the eggs. The newly hatched larvae are e…

…nt merchant grain beetles in private homes. To prevent both merchant grain beetle and other beetles from trying to eat one’s food, one should make sure that all the foods that the beetles will go for, are properly packaged in air-tight concealers. In addition, you can minimize the risk by keeping the merchant grain beetles favorite foods (nuts, almonds, dried fruit, seeds, and the like) cool. If you live in an apartment and experience that the mer…

…are cylindrical (see p. 123). Death watch beetle exit-holes in timber Death-watch beetle The exit-holes have a diameter ol 3-5 mm. The larvae occur almost exclusively in oak damaged by damp, both in the sapwood and the heartwood. The faeces are large and lens-shaped (see p. 125). Fan bearing wood borer exit-holes in timber Fan-bearing wood-borer The exit-holes have a diameter of 0-1.5 mm. The larvae are found in the sapwood on deciduous trees. The…

…serrated strips. The wings are fully developed, yet one never sees the saw-toothed grain beetle fly. The larvae are also small, they are only three to four mm long. The head of the larvae is dark, while the rest of the body is yellowish white. The beetle is often mistaken as the merchant grain beetle, as their appearance is similar. Biology and behavior In general, the saw-toothed lifetime is 6-10 month. They can however be up to three years old,…

…t other beetles, the flour beetle larva is larger than a fully grown flour beetle. A flour beetle is just 2.5-4 mm long. It has a reddish-brown color and a very long hind body. Like most other beetles, it has six legs and, of course, antennas on its head. If you are not sure of the species, it can be recognized by its lively behavior. Since the flour beetle is an insect, it has a larval stage. The flour beetle larvae are somewhat larger than an ad…

…peseed fields – especially in spring rapeseed. Appearance The rape blossom beetle is a small gloss beetle of just two millimeters. Its color is dark with a metallic shine that is usually greenish. Biology and behavior When the temperatures are warm, you can experience the rape blossom beetle flying around in even very large numbers. Like many other insects, the beetle is attracted to yellow colors. If you are wearing yellow clothes, it is therefor…

…des canis Cu/ex pipiens Culicidae Culiseta annulata Davies’s Colletes Death-watch beetle Debris bug Delichon urbina Dendrobium pertinax Dendrocopus major Dermanyssus gallinae Dermatophagoides Dermestes frischi! Dermestes haemorrhoidalis Dermestes lardarius Dermestidae Dermestids larvae Devil’s coach-horse Dinoderus minutus. Diplopoda Dog flea Dog louse Dried currant moth Dronefly larva Drosophila funebris Drugstore beetle Dryocopus martinus Dry ro…

…borer snout beetle has a dark color that changes from dark brown to a black-brown shade. The adult beetle measures between 3 to 4 millimeters. The larvae, on the other hand, are pale and have a curved shape, just as they are quite boneless. Biology and behavior The borer snout beetle has its very own preferences when it comes to choosing wood. The female lays her own eggs exclusively in wood that is affected by rot or that is otherwise moist. Howe…

…o the wood boring beetle family – more precisely Anobiidae. Appearance The beetle is 5-6 mm long and the color is black with strips on the cover wings. In addition, the beetles have a couple of spots of yellow silky hairs on the back corners of the chest. If you are in doubt of the species of a specific beetle, these yellow spots will be characteristic for the Hadrobregmus pertinax. Its head is hidden under the neck shield. The larva is c-shaped a…

…nce it is a very commend type of pest in Denmark. A fully grown woodboring beetle is 3-5 mm long and the color is brown. The cover wings are characterized by visible dot stripes that makes it recognizable. Biology and behavior The woodboring beetle is a common guest in woodwork, dead trees, wooden posts, timber, and the like. The beetle is only seen during the warm summer months in June to august. In the end of June to the beginning of July they a…

…n beetles is yellowish. The development from larva to adult violet tanbark beetle takes in average 1-2 years. When the larva is fully developed, it will gnaw a 3-5 cm long passage into the wood, thereafter it will pupate in an enlarged den. It will close the den with rough wood dust. When fully developed, the violet tanbark beetle will emerge through the same hole as the larva entered and chew an oval exit hole of 6x4mm. You can encounter this spe…

…r traces that make the bark beetle an annoying pest in the forest. The many-bark beetle can often ruin not only the value of the wood, but also its uses. Therefore, the infested wood cannot be used in places where water infiltration is a risk factor. The bark beetles are preferably a nuisance outdoors and fortunately cannot do great damage indoors. They can neither damage the woodwork in the house nor in any other way constitute a damage in our ho…