Funnel-web spider (scientific name: Hadronyche infensa), also known as the grass spider, is named for its funnel-shaped web and has many species worldwide. It is the most venomous species among the over 30,000 known spider species in the world, capable of causing death in an adult within 15 minutes. It is highly aggressive. Males are more venomous than females.
The funnel-web spider has a hairy body, long legs, and a narrow cephalothorax. It has 8 eyes and an oval-shaped abdomen. It has dark stripes, V-shaped patterns, or spots. The last two spinnerets at the end of the abdomen are longer than the spinnerets at the front.
The funnel-web spider is highly combative and will attack any animal that approaches it. If a person is bitten by it, they will die within 15 minutes. It is best not to catch these spiders during the summer and rainy season, as that is their mating and breeding season. The male spiders are actively searching for mates and are particularly aggressive. One wrong move could result in a deadly attack.
Phylum Arthropoda, Class Arachnida, Order Araneida, Family Agelenidae, also known as the funnel-web spider, is similar to the family Amaurobiidae, but all species in this family have no sieve organs and combs (the subfamily Coelotine of the family Amaurobiidae is also without sieve organs and combs). The difference between the family Agelenidae and the families Araneidae and Cybaeidae lies in the arrangement of spinnerets (all spinnerets of spiders in the family Araneidae are arranged in a line, and the two anterior spinnerets of spiders in the family Cybaeidae are close to each other). In addition, the family Agelenidae is also distinguished from other families by having 3 claws on the tarsus and 2 segments on the posterior spinnerets.
Not recommended for keeping as pets, the funnel-web spider (scientific name: Hadronyche infensa), also known as the grass spider, is named for its funnel-shaped web and has many species worldwide. It is the most venomous species among the over 30,000 known spider species in the world, capable of delivering a deadly bite that can cause death within 15 minutes. It is best not to catch these spiders during the summer rainy season, as it is their mating and breeding season. Male spiders are actively searching for mates and can be particularly aggressive, resulting in potentially fatal attacks if approached.
1. Cachexia
When you find that the spider's body becomes dull and the epidermis starts to become dry and yellow, it is likely to have cachexia. This condition is generally caused by poor nutrition due to the spider not eating well and experiencing long-term hunger.
2. Enteritis
In contrast to cachexia, this is caused by overeating. The owner keeps feeding the spider constantly or feeds it at a low temperature, which can cause abdominal distension and pain, eventually leading to enteritis.
3. Hemiplegia
Spiders do not require a high environmental temperature, but when the temperature is too high, especially in summer when it is hot and humid, if the spider cage is far from the ventilation outlet, the spider may experience heatstroke-like symptoms, with their legs becoming paralyzed due to nerve paralysis, resulting in hemiplegia.
The main food is insects (such as crickets, cockroaches), don't feed them with a single type of food! Funnel-web spiders are not active creatures, the enclosure does not need to be too large. Young individuals between 1-3 centimeters can be placed in a 4-5 centimeter tin can. Subadults over 10 centimeters can be placed in a 30x20x20 (length, width, height in centimeters) enclosure. They will weave a large web and only move within the web. Feed them by throwing food into the web, with a temperature above 10 degrees Celsius! Humidity of around 65 percent is sufficient!
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