False Widow

False Widow

Identyfication

Colour

(Steatoda nobilis) is a species of spider that is typically black or dark brown in colour. The abdomen may have lighter coloured spots, and the legs may have some yellow markings.

Size

Mediumsized spider, with a body length of around 8mm and a leg span of up to 25mm

Habitat

Can be found in warm, dry areas of Europe and parts of the United Kingdom. It is commonly found in gardens, sheds, garages, and other such humanmade structures.

False Widow Spider
Noble False Widow (Steatoda nobilis): Identification

The Noble False Widow (Steatoda nobilis) is a species of spider native to Madeira and the Canary Islands, though it has been accidentally introduced to a few other locations. It is commonly confused with the much more dangerous and venomous black widow spider (Latrodectus mactans).

The Noble False Widow is a medium sized spider, with an adult body length between 7 and 14 mm. The carapace and legs are a light to dark brown colour and are covered in a dense pattern of small white spots.

 The abdomen is usually darker brown or black and often has a pattern of white spots or stripes. The spider’s most notable feature is the large round bulb at the front of its abdomen, which gives it the appearance of having a “noble” crest.

The Noble False Widow is a web-building spider, typically found in sheltered locations such as window frames, cracks in walls, and attics. Unlike the black widow, the Noble False Widow can be found in large numbers, as they prefer to live in colonies. They feed mainly on small insects, which they catch in their webs.

The venom of the Noble False Widow is not considered to be dangerous to humans, but it can cause localized pain and swelling. In rare cases it can cause more serious symptoms, such as nausea, fever, and headache. Therefore, it is important to identify this species before attempting to remove it from your home.

Habitat , Diet, and Life Cycle

 

Habitat 

The Noble False Widow (Steatoda nobilis) is an introduced species of spider native to Madeira and the Canary Islands. It was likely accidentally introduced to the UK and has since established itself in the south and eastern parts of the country. The Noble False Widow prefers to live in sheltered locations such as window frames, cracks in walls, and attics. It is not found in large numbers, but it is more common in urban areas.

Diet: 

The Noble False Widow feeds mainly on small insects, which it catches in its webs. It is an opportunistic feeder, and will also eat other spiders and even small vertebrates such as lizards and frogs. It is not an aggressive species and typically only bites in self-defence.

Life Cycle: 

The Noble False Widow has a two-year life cycle. The female spiders lay their eggs in a silken sac, which they attach to a sheltered location. After hatching, the spiderlings go through several moults before reaching adulthood. The adults typically live for up to two years. During this time, they can produce several batches of eggs.

Types of spiders

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