When adults emerge they can be as large as 11mm. With an acute sense of smell they actively seek carrion and can live for several weeks dependant on the ambient environment. Frequently pests of meat factories, slaughter houses or sites where there are dead animals.

The larvae grow to a size of 5mm, having a banded appearance and are covered in short bristles. Larvae infest carpets and fabrics which are undisturbed or under compression, behind and underneath furniture. Adults can be seen wandering on the carpet and flying towards light source.

Adult wasps are 10-20mm long with a distinctive yellow and black patterning all over their bodies. Common throughout Britain and Northern Europe, favouring sites which are enclosed such as: soil banks, cavities in trees or walls and roof spaces.

A small laterally compressed wingless insect, yellow to black in colour with backward facing spines. An ectoparasite of mammals and birds and feed on the blood of the host when adult. The signs of an adult infestation will be most readily recognised by the presence of bite marks on the host.

Primarily nocturnal pest, preferring a moist, warm environment with an optimum temperature around 30°C. Commonly a pest of kitchens, larders and restaurants. Faecal smears in conjunction with a distinctive odour are both clear indicators of an infestation.

The housefly is found worldwide, but in the UK is most commonly associated with any sites which have a lot of decaying organic matter. Larvae tend to produce ammonia when they moult giving harbourage a distinct and unpleasant smell. Adults can be seen flying through the air.

Widely distributed through Britain. Preferring to breed near sources of still freshwater, such as drains and underground sumps. Larvae will be visible in water. Adults are strong fliers, emitting a familiar drone whilst in flight. They are persistent biters, preferring to feed at dusk.

The adults are 6mm long with a black thorax covered in a sheen of golden hairs. Usually appearing in great numbers after periods of cold weather with a slow and sluggish flight. Commonly found in window edging or in roof spaces