Search Results for: Wasp beetle - Clytus arietis

Frequency

…live Wasp years are often years with a warm early summer, giving the start-up communities favorable conditions. In the long term the frequency of the different animals change. Animals like the European adder, human fleas, dog fleas, bed bugs and body lice are no longer as common as they were in the past. Head lice have had three common periods in Denmark in the 1900s – During the Two World Wars and in the early 1980s. Now it seems that once again…

Prevention and control

…e are phone numbers you can call. Access to the list is free. The list can also provide information about who to call for help with a wasp nest. These, however, demand payment….

Wasps

…Often when the loft is being cleared in winter one comes across a very drowsy wasp hidden away in a well-sheltered spot. This will be a hibernating young queen…

Ants

…. 100 million years ago, Ants (Formicidae) evolved from small solitary wasp-like ancestors. Some ants still have an actual venomous stinger like wasps. These stinging ants may attack if you accidentally sit on an anthill. Fig. 53 An ant spraying formic acid (Maschwitz) There is usually no doubt about what the problem is. An anthill in the lawn can be eradicated by saturating the hill with a diazinon solution. The ants which occasionally turn up in…

Aphomia sociella

…is is a moth which lays its eggs in a bumble bee nest, or more rarely in a wasp nest. Bee moth, Aphomia sociella There the larvae feed on any organic material, e.g. the wax cells and their con- tent of nectar and pollen in a bumble bee colony, but they may also attack the bee larvae. When fully grown the moth larvae leave the nest in a body and in a sheltered spot nearby they then spin a communal cocoon, which may contain hundreds of pupae. The bu…

Water mites

…yemotes ventricosus. It lives as a parasite on the skin of moth larvae and beetle larvae. In places where there are many larvae, there can be an excess of hungry water mites. This could be in old hay, or in granaries and other places where there are many insect larvae. Another water mite species live on the deathwatch beetles. Attacking people Water mites crawl around in search of a larva, or they move passively through the air with dust. If they…

Callidium violaceum

…attack is simply to remove the bark. As in the case of Ernobius mollis (p. 122), this species may also cause damage when panels or roofing are placed up against bark-covered timber. When the beetles emerge they sometimes gnaw their way out through the covering panels….

Examination of raw materials and food on site

…the product. A sweet, honey-like odour can be rotting flour mites. A phenol-like odour may come from dark flour beetles. Flour which is infested with confused flour beetles will gradually become greyish and it smells mouldy. Moth larvae in groceries reveal themselves by the products being spun into clumps. If flour is spun to a solid block, it can also be caused by fungal hyphae. A suspiciously horizontal surface in flour that has stood untouched…

Gracilia minuta

…Gracilia minuta This beetle is specialized for living in the thin branches of various deciduous trees. It is a very small species occurring mainly in southern Europe, whence it may be introduced further north in basketwork made out of willow with the bark still on. Development normally takes a year. In northern Europe this species could certainly continue to breed in baskets kept indoors, but would not damage other objects….

Chlorophorus annularis

…e: bamboo tiger longhorn Chlorophorus annularis This is a beetle from south-east Asia, which feeds mainly on bamboo, and it may be a very serious pest where this is used for building houses. Bamboo stick from an importer’s furniture – with traces of bamboo longhorn larvae. Occasionally bamboo imported into Europe may contain the larvae. In dry bamboo the larval development takes several years so it may be a long time after the purchase of bamboo f…

Invertebrates and hygiene

…he spread of disease There are two principal ways in which pathogenic micro-organisms can be transmitted by invertebrates. In some cases a disease may be completely dependent upon certain species of insect or mite and can be transmitted only by them. Well-known examples are yellow fever and sleeping sickness, which do not occur in temperate regions, and malaria, which has, in practical terms, been exterminated in Europe. In the back of the carpet…

Small black or garden ant

…to gnaw their way into timber which has already been subject to damp and has been broken down by fungi and possibly by the attacks of beetle larvae. On this ant see also page 81….

Dermestid larvae

…DERMESTID LARVAE Dermestid larvae usually wander away from the material they have been living in when they are fully grown (p. 73) and then gnaw into some other material and pupate there. In buildings they often attack timber, and in stores of hides or dried fish which have been attacked by the larder beetle the woodwork may, in the course of time, become completely riddled with holes….

Nutmeg or coffee weevil

…t Asia. It requires warmth and a high humidity, so in temperate regions it will die off in winter unless the infested goods are stored in well-heated places. Coffee weevils in coffee- and cocoa beans…

Tanbark borer

…l development normally takes about 2 years. The adult larva pupates in an L-shaped passage of 2-3 centimeters, which it gnaws itself. Once the larva has gone through the process from larva to adult tanbark borer, it goes back through the pupae. It then gnaws its way through the bark of the tree, leaving an oval fly hole with smooth edges of about 4 × 6 millimeters. Damage The tanbark borer lays its eggs in deciduous trees. This means that it is ra…

Warehouse or cocoa moth

…e slightest gap the female moth, attracted by scent, will lay eggs• nearby and the newly hatched larvae will crawl in and start to feed. This moth can also eat tobacco. Remarkably enough it can tolerate nicotine and, together with the tobacco beetle, it is one of the most serious pests in the tobacco industry. When a cocoa moth is seen in a private house or the larvae are observed climbing up a wall it will almost always be because a packet of rai…

Animals in thatch

…but it also provides excellent insulation. As a result the house longhorn beetle (Hylotrupes) is unable to establish itself in the roof space below a thatched roof, which will not be warm enough for it during the summer. However, one of the disadvantages of thatch is that it may be attacked by a variety of animals. Cranefly Larvae Cranefly larvae may also appear in thatch (p. 105). They normally live in damp earth, and so it is only in old, damp,…

Where?

…oors: Head lice, body lice, pubic lice, bedbugs, the masked hunter, larder beetle larvae, stable flies, human fleas, cat fleas, dog fleas, brown dog tick, pigeon mites, mites on birds, house dust mites, storage mites and spiders. These are mainly troublesome outdoors: Thrips, common flower bugs, water bugs, rusty tussock moth larvae, mosquitoes, black flies, midges, horse flies, bees, hornets, ants, hedgehog fleas, bird fleas, caster bean tick, ha…

Animals that gnaw metal

…e metal. The most serious damage occurs when a roof covering of copper, lead or zinc is laid on laths containing the larvae of wood wasps or of the beetle Callidium. The adult insects make large holes in the metal which allow damp to enter and the timber will then be attacked by fungus. Wood-boring beetles may also work their way out through metal plates. Insect pests of timber have been known to gnaw through electric cables and thus cause a short…

Sounds

…gnaw its way through the skirting-board, or will have heard it playing hide-and-seek with its mates up in the attic. On account of their size rats tend to make even more noise. They have a very disturbing habit of dragging large objects around at night, which has given rise to stories of poltergeists. The fact that rats are involved is betrayed by the shrieks and squeals which accompany their petty squabbles. Beech martens in a loft also make nois…

Common bean weevil

Common bean weevil (Latin: Acanthoscelides obtectus) This beetle mainly infests beans, but it may also occur in other related crops. It can lay eggs in fresh beans in the fields or in dried stored beans. The female lays several eggs in each bean. When the larvae are fully grown they gnaw their way out towards the surface of the bean and pupate, leaving a thin shell between themselves and the outside world. When the adult beetles are ready to emer…

Hide and bacon beetles

…( Latin: Family Dermestidae) The members of this beetle family live principally on the dried remains of plants and animals. Many species live on for example cartilage and scraps of dried meat and some can utilize hair and feathers (see p. 98). This way of life will, of course, bring them into conflict with human interests, for they frequently attack dried foodstuffs….

Dermestes haemorrhoidalis

…which also lives on dried animal remains. Larvae ready to pupate have the same habit of gnawing their way into all kinds of materials. This is a recent addition to the European fauna, but it appears to have become quite common, particularly in large towns. The adult beetles fly very well and so an odd one may appear in any house. In general, they can do no damage in a normal household, but they may multiply if the remains of food and other kitche…

Trypodendron

…the trunk of the tree, and from this she makes two or three horizontal egg-galleries, which usually follow the annual rings. She then gnaws small niches in the roof and floor of the galleries and lays an egg in each one. When they hatch the larvae somewhat enlarge the niches but they do not gnaw true tunnels in the wood, for they feed on the fungal growths already mentioned. Each larva pupates in its own chamber and the adult beetles emerge from…

Fan-bearing wood-borer

…Fan-bearing wood-borer ( Latin: Ptilinus pectinicornis ) This species, which is not as common as the other wood-boring beetles, mainly infests deciduous trees, e.g. beech, birch, oak. It is easily recognizable by the large, comb-like antennae. Unlike the other wood-borers here the adult beetle also gnaws timber. The wood dust is very fine and similar to that produced by the powder post beetles….

Bark beetles

…bark is removed from dead branches or trunks. Some bark beetles keep exclusively to the bark, others work in the layer between the bark and the wood, and each species produces its special pat- tern. True bark beetles are only seen indoors when brought in with timber that still has the bark on, e.g. firewood, and they cannot attack worked timber…

(8) The pharaoh ant and the common black ant

…ons to cold temperate zones in which we live. However, there are a few exceptions and one of these is the dark flour beetle….

Bostrychidae

…Bostrychidae is a tropical beetle family which mostly consists of wood boring species. A few species, such as the lesser grain borer, have, however, adapted themselves to a life in foods….

True weevils snout beetles

…to man. Weevils have mouth parts that are located on the tip of a proboscis-like protrusion. The nut weevil is a commonly known beetle, which is responsible for the wormholes you see in ripe hazelnuts. The nut weevil larvae live inside the nut before it is ripe and it does not infest ripe nuts. Weevils of the genus Apion are associated with different kinds of seeds prior to harvesting. They are often dragged into warehouses with peas or beans, but…

Allergy to pests

…t people react to. As far as we know today, there is no particular allergen-risk by eating or drinking food containing pests. Allergic reactions to food are not always caused by the food, but can also be a reaction to the particles that occur when food is digested. Skin disorder can occur in relation to contact allergies. An example of this is people, who work with prunes or cheeses that contain mites, getting rashes. Those rashes are said to be c…