Search Results for: Wasp beetle - Clytus arietis

Phymatodes testaceus

…beech, birch and oak. In a house the first sign will normally be the adult beetles, seen crawling around the room, and as they must necessarily have come from bark-covered timber the first place to search is the log basket. The exit- holes are oval (p. 118). This beetle is in no way a menace in the house, but if hardwood is being kept for carpentry work it is always advisable to remove the bark, as an attack by these beetles renders the outer lay…

Bug Indentification

…pra beetle Red-legged kopra beetle Reesa vespulae and larva Regular hornet – Wasp Rice weevil Rust-red flour beetle Rust-red grain beetle and larva Saw-toothed grain beetle and larva Scuttle fly Shiny spider beetle Spider beetle male Spider beetle, Sphaericus gibbioides Thysanura – Firebrat Thysanura – Silverfish Trogoderma dermestid beetle Tropical warehouse moth Vinegar fly Warehouse moth White-marked spider beetle Wine moth larva from yellow me…

Furniture beetles

Drugstore beetle Latin: Anobiidae Common furniture beetle on wood with fly holes The larvae of these beetles live mainly in timber. The adults are very small and brownish with an almost cylindrical body. It is typical that the thorax is arched to form a hood which almost conceals the head. The larvae of the different species of furniture beetle are soft, curved, with very small legs, and they are difficult to distinguish from one another. They ar…

Animals in timber

…deciduous or coniferous, and its age and condition, may also provide clues. Natural enemies of timber pests It might be thought that animals living the greater part of their lives in timber would be well protected against enemies but this is not always the case. Wood-boring beetle larvae fall prey to many species of parasite and predator, and when an attack by such beetles is thought to have died out on its own, this is very often the work of the…

KEY II, animals with 3 pairs of legs; insects

…g hard shields, without distinct veins. Antennae normally short, never whip-like beetles Elongated, worm-like certain insect larvae Elongated or plump, with dense hairs certain insect larvae Not worm-like, and without hairs With three long segmented ‘tails at hind end silverfish With a ‘wasp waist’ ants Without long ‘tails’ and without a ‘wasp waist’ Large animals, i.e. the adults are larger than an ordinary black garden ant About the size of a bl…

Control

…ound the house without making the hornets nervous see, you can live with a wasp’s nest in the house or garden. In many cases, it is impractical; especially there are children in the house. Then eradication is necessary. A free-hanging hive can be neutralized by spraying an insecticide containing pyrethrin I and II + piperonyl butoxide into the entrance hole. The pyrethrins instantly confuse and paralyze the hornets and prevent them from using thei…

Bumble bee wax moth

…mble bee wax moth can make itself comfortable. They also like to settle in wasp nests or bird nests. In rare cases, they may even seek out a honeycomb. Inside the bumblebees’ nest, the bumble bee wax moth lives on the organic material found, such as the content of flower dust in the wax pots. But the bumble bee wax moth also does not refrain from attacking the larvae themselves in the nest. When the moth larvae have finished their development in S…

White-shouldered house moth

…become white-shouldered house moth. In modern homes they can stick to wall-to-wall carpets. If the carpet is long while the floor below has been damp, this is the perfect climate for the white-shouldered house moth and their larvae to live in. You can relatively easily get rid of white-shouldered house moth by drying out, freezing, or washing your textiles. There are also various insecticides and moth repellents specifically for the purpose, for…

Hornets (actual wasps)

…ce the size of the others. Colloquially, they are often called wasps, however, this can create misunderstandings, as there are many kinds of wasps: ichneumon flies, digger wasps and saw flies, etc….

Bees, wasps and ants

…s, most of the hymenoptera females have stings. It consists of three needle- or blade-shaped parts. In some species, it is exclusively used as an ovipositor during the oviposition. Most of the species can use the sting as defense or attack weapons, as some of the glands, which are related to the female reproductive organs, produce venom. Common black ant The larvae are usually pale, fat and legless and are fed by the adults. Some hymenopteran have…

Wasps and hornets

wasp and hornets A wasp uses its sting for killing prey, but it can also use it very effectively as a defensive weapon. The sting has associated glands which produce venom. A hornet sting can be very painful, but is normally not dangerous, as the amount of venom injected is very small. In some cases, however, people do become ill after being stung by a hornet. This is due either to the venom being injected directly into a blood vessel or to the v…

Index

…onas vaginalis Trimenopon jenningsi Trips Trombiculosis Tydeus Tyrolichus casei Tyrophagus Venom Vespa crabo Vipera berus Vitamin B Wasps Water mites Weevers Yucca-palmer…

Fungus beetles

…tself and on the back of the clipboard, and this will provide food for the beetles and their larvae. Plaster beetle, male Damp corn, hay or straw in a loft may encourage the multiplication of these beetles, and their larvae may then appear in their thousands in the rooms below where they will be looking for a suitable place to pupate. These beetles do not normally destroy anything, but now and again they may damage foodstuffs such as- dried fruit….

Flour beetles

…s are similar to each other by occurring in flour and other cereals. These beetles are flat, elongated, shiny beetles with almost parallel sides. The prothorax is quite broad. The largest of the species are black, the smallest maroon. These beetles belong to the family of darkling beetles (Tenebrionidae). The dark flour beetle and the two kinds of confused flour beetle belong to the same genus, Tribolium. Systematists have had difficulties sorting…

Rice weevil

Rice weevil (Latin: Sitophilus oryzae) This beetle is a little smaller than the grain weevil, and can be recognized by the four reddish spots on the elytra, which cover a pair of functional wings. Rice gnawed by rice weevil This is one of the most serious pests of cereal crops in the tropics and subtropics. It is often brought to northern Europe and is not uncommonly found in kitchen cupboards, usually in a packet of rice (see page 93). As in the…

Control of timber pests

…ertain cases the common furniture beetle (Anobium punctatum) and the powder-post beetles Lyctus spp). In attempting to control timber pests the difficulty is that the larvae, which account for by far the largest part of the population, are well protected inside the timber. They can be treated with gas or heat which penetrates the timber, or by spraying large enough quantities of insecticides. Pests of timber can also be controlled by treating the…

Longhorn beetles

…e timber, and the larvae feed on the wood. Their development may take several years. When fully grown each larva prepares an enlarged pupal chamber, often lined with coarse wood fibres, in which it pupates and later metamorphoses to the adult beetle. The different species vary widely in their choice of timber. Some can thrive only in hardwood, others exclusively in softwood, some attack fresh, newly felled timber, while there are certain species w…

Opilo domesticus

…Opilo domesticus) Opilo This beetle can often be found in a loft where wood-boring beetles are attacking the timber. The adult beetle kills and eats many of the adult wood-boring beetles while its larvae hunt the larvae of wood- borers and house longhorns in their own tunnels. In doing so they have to dig their way through wood dust and in true mole fashion they eject this material through the exit-holes forming little ‘mole-hills’. Opilo domestic…

People’s reaction to the bite

…reactions you get after contact with, for example, the hair of the larder beetle larva. However, larder beetle hairs and the like usually leave a dark spot in the centre of the wound and the clear blister can be infected (yellow) after a few days. Location of the bites. Fur mites can penetrate clothes and the biting usually occurs where the first contact with the body is made. These are the places on the body which have had physical contact with…

The brown-banded cockroach

…e light and has a certain fondness of high locations in a room. That is behind racks, shelves, etc. It is not uncommon behind TV sets, radios and other devices that give off heat and in some countries this 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…

Wharfborer

…the wharf borer beetles only grow in moist wood, unlike the house longhorn beetles. When seen in a house this beetle may have come in from outside, having emerged from ships’ timber or wharves, and it also thrives in piling and in structural timber in damp cellars. It is not uncommon for such timber to be so damaged as to require replacing. The new timber should be impregnated and efforts made to reduce the humidity, possibly by improving the vent…

4. Packaging

…squeeze their way through very small cracks. Invasions of moths, drugstore beetles and saw-toothed grain beetles frequently happen that way. Metal cans and glass with tight fitting lid are probably the only packagings that provide 100 % protection against insects and mites. Hessian, cotton, rayon and other textiles protect poorly and even worse, as the weave is looser. Most of the pests that seek out foods can squeeze through the mesh or find adeq…

Powder post beetles

(Latin: Lyctidae) Powder post beetle These beetles are very slender, brown and 2-5 mm long. They are particularly associated with deciduous trees that have large vessels, e.g. oak, ash, walnut, and with many tropical species, as well as bamboo. The female usually lays her eggs in the sapwood in the vessels themselves. The larvae feed on the starchy contents of the sapwood cells and gradually reduce the timber to a powdery mass surrounded by a thi…

American Dermestidae

…control If you want to fight the American dermestidaes in your home, it will often be sufficient to be thorough with the cleaning. Be sure to vacuum cracks and crevices thoroughly and be careful to keep your dry goods in kitchen cabinets securely wrapped so the beetles do not settle in your flour or oatmeal. In addition, it is also a good idea to change your garbage bag regularly. If the beetles attack smaller objects, it may be sufficient to free…

Carabus nemoralis

…only known as: European ground beetle European ground beetle These are fast-moving, agile beetles with powerful legs and long antennae. The species normally seen indoors are 2-3 cm long and black or brownish. Only a few of them can fly, and in some species the elytra which cover the abdomen are fused together. Most carabid beetles are predatory, feeding on worms, slugs and insects, and some species have been released in American forests to control…

Dendrobium pertinax

…vae may still go on developing in timber that has been damaged by damp, so any infected timber should be treated or even replaced. The beetles can- not live in healthy dry timber…

Ernobius mollis

…in the other furniture beetles. A clothing of short, fine hairs gives the beetles a pale, golden-brown colour. The life cycle is very similar to that of the common furniture beetle but the female only lays eggs in the bark of fallen or dead conifers. The newly hatched larvae gnaw their way into the growth layer and feed partly on the innermost layer of bark, partly on the outermost zone of sapwood. If the bark is removed the larval tunnels can be…

Beetles

…the ladybirds are quite numerous and their natural food supply of aphids and scale insects run out. Some of the hungry beetles may want to try a sample of humans. Beetle bites usually do not have any after-effect because no poison, etc. is injected to the wound….

The lesser grain borer

…kernel. Latin: Rhyzopertha dominica. 2 – 3 mm long, reddish-brown to black-brown beetle. The prothorax is large and rounded in front like a hood, which on the top and in the front is covered with small lumps. The lumps help when the beetle drills. Head with mouth parts is on the underside of the prothorax and is not seen from the back. Feelers are 10-jointed and the three outer joints form a thick-toothed comb. In the tropics, it is a dreaded pes…

Ants

…ales (flying ants) are produced during the summer. The males are small and wasp-like, the females – the queens to be- are up to 1 cm long. The winged ants seek towards light, they must be out in the wild to mate so you will find them on window sills and crawling in the curtains. This swarming takes place simultaneously from many communities in the area. The winged ants mingle with garden ants from other communities and mate. The synchronisation is…