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THE SPIDER

蜘蛛

Posted July 18, 2013, 2:58:00 PM    ∙    By System Admin    ∙    0 Comment    ∙    12012 Views
HEALTH THREAT
Most spider species do not bite humans unless when guarding their egg sac, or in the early years of development. The venom of most species of spiders is usually not fatal, but it does cause inflammation, swelling and an itching sensation. Certain species such as the Brown Recluse, Hobo and Black Widow Spider have more potent venom. A bite from one of these spiders can result in tissue damage and in very rare cases for very young children, death.
PROPERTY THREAT: Minimal to none.
Unlike mosquitoes, spiders do not actively seek our people to bite them. They only bite humans if they have been squeezed, lain on or provoked. A spider might also bite a human if they have disturbed its web, biting by instinct because it thinks an insect has been caught.

IS A SPIDER BITE DANGEROUS?

The severity of a spider bite depends on these factors:

  • Type of Spider
  • The amount of venom injected
  • The age and health of the person bitten.
In most cases, spider bites may result in itching, redness, stiffness, swelling and pain-at worst, usually no more severe than a bee sting. However, some people may be allergic to spider venom, causing more severe reactions. The best thing to do when experiencing a severe reaction to a spider bite, is to capture the spider and bring it with you to the nearest emergency room.

TYPES OF SPIDERS

There are two types of spiders, hunting spiders and web-building spiders. These two types are distinct in their approach to capturing prey. Hunting spiders rely on webs only as a way to provide shelter. Web-building spiders specifically use their web to catch their prey. However, both species are capable of biting humans.

HUNTING SPIDERS

 

JUMPING SPIDERS

Jumping Spiders are named for their ability to leap 10 to 40 times their body length. They can live in various climates, such as mountains and deserts. For homeowners, this means Jumping Spiders can nest in various places inside and outside of your home. Unlike other spiders, Jumping Spiders are particularly curious and will not scuttle away from humans. Rather, they will come closer and may even jump into your hand if offered. Fortunately, Jumping Spiders are not particularly aggressive, and will only bite if they feel threatened. Their bite is rarely hazardous, unless the victim is allergic to spider venom.

Traits of a Jumping Spider

  • Appearance: Many species are ornate, brightly colored and are strikingly patterned
  • Body Shape: Stout bodies with short legs
  • Eyes: Are distinct by their large pair of eyes on the front of the face

WOLF SPIDERS

Wolf Spiders are the nomads of the spider family. Some may have a certain habitat they call home, but most wander from place to place, and as a result can be found both indoors and outdoors. If continually provoked, this spider will bite releasing venom that causes swelling, pain and itching.

Traits of a Wolf Spider

  • Appearance: Dark-colored to match their environment, usually brown or gray with white markings
  • Size: Medium to large-sized (1/4 - 3/4 inch long)
  • They are unique in carrying their egg sac with them, attached at the end of their abdomen

FISHING SPIDERS

Fishing Spiders are usually found near sources of water. These spiders use their incredibly long legs to "skate” across and drive into water to capture prey. While this spider may be feared due to its large size, its bite is not serious for humans.

SAC SPIDERS

Sac Spiders are commonly found indoors. Instead of a traditional web, Sac Spiders build small "retreats” for themselves made of silk that resemble a tube or sac. Favorite nesting spots for Sac Spiders are high up on walls, near ceiling or outdoors beneath foliage or attached to the underside of a stone.

Traits of a Sac Spider

  • Appearance: Yellowish or light-colored
  • Size: Small to medium-sized (1/5 - 2/5 inch long)

CRAB SPIDERS

Crab Spiders tend to stay outdoors. They are named for their ability to walk forwards, sideways, or backwards like a crab. These spiders wait for their prey to come to them, usually nesting on flowers, stems or leaves until an unsuspecting victim passes by.

Traits of a Crab Spider

  • Appearance: Color ranges from yellow or red to brown or gray
  • Body Shape: The first four legs are held out to the sides, like a crab, and are usually longer than the back four
  • Size: Small to medium-sized (1/10 - 2/5 inch long)

GNAPHOSID SPIDERS

Gnaphosid Spiders are most commonly found outdoors during the day, under stones or loose bark inside silken retreats, similar to the Sac Spider. At night, a specific type of gnaphosid, the parson Spider, has been known to enter homes, looking for prey. Indoors, they usually hide under objects or in cracks or crevices.

Traits of a Parson Spider

  • Apperance: Brownish body, gray abdomen, marked with a white stripe
  • Size: Medium-sized (1/2 inch long)
健康上的威胁
大多数蜘蛛物种不叮咬人类除非守卫着自己的卵囊时或在早期的发展。大多数蜘蛛物种的毒液通常不是致命的,但它确实引起炎症,肿胀和瘙痒的感觉。某些物种如棕色隐士蜘蛛,流浪汉蜘蛛和黑寡妇蜘蛛具有更强烈性的毒液。从这些蜘蛛之一的叮咬可能导致组织损伤,在极少数情况下,对于非常年幼的儿童导致死亡。
物业上的威胁
小至无。 不同于蚊子,蜘蛛不积极寻求人们咬。它们只叮咬人类,如果它们被挤压,放置或挑衅。蜘蛛也可能咬人,如果他们搅乱了它的网,本能地咬因为它认为昆虫已被捕获。

蜘蛛叮咬危险?

蜘蛛咬伤的严重程度取决于这些因素:

  • 蜘蛛的类型
  • 毒液喷射量
  • 被咬的人的年龄和健康状况。
在大多数情况下,蜘蛛叮咬会导致瘙痒,红肿,僵硬,肿胀和疼痛--在最坏的情况,通常不会严重过一个蜜蜂蛰伤。然而,有些人可能会对蜘蛛毒液过敏的,造成更严重的反应。当被蜘蛛咬伤而经历了严重的反应时,最好的做法就是要捕捉蜘蛛并随身携带它到最近的急诊室。

蜘蛛类型

有两种类型的蜘蛛,结网性蜘蛛和狩猎性蜘蛛。这两种类型在它们的方法来捕捉猎物是不同的。狩猎蜘蛛依靠蜘蛛网只作为一种方法来提供庇护。结网性蜘蛛专门使用它们的网来捕捉猎物。然而,这两个物种都能够咬人类。

狩猎性蜘蛛

 

跳蛛

它们被命名跳蛛因为它们能跨越10至40倍的体长的能力。它们可以住在不同的气候条件下,如山脉和沙漠。对于屋主们来说,这意味着跳蛛可以窝在你家的内部和外部多处地方。不同于其他蜘蛛,跳蛛是特别好奇,不会逃脫远离人类。相反,它们会更接近,甚至可能会跳进你伸出的手。幸运的是,跳蛛不是特别好鬥的,而且只会咬人倘若它们觉得受到威胁。它们的叮咬是极少危险,除非受害人是对蜘蛛毒液过敏的。

跳蛛的特征

  • 外观:许多种华丽,颜色鲜艳,有显着图案的
  • 体形:粗壮的身体与短腿
  • 眼睛:它们截然不同于是在面部的正面的一双大眼睛

狼蛛

狼蛛是蜘蛛家族的游牧民族。某些蜘蛛可能有一定的栖息地作为家园,但大多数从一个地方游走到另一个地方,并因此可以被发现在室内和室外。如果不断挑衅,这种蜘蛛会咬人并释放毒液,造成肿胀,疼痛和瘙痒。

狼蛛的特征

  • 外观:深色以配合它们的生活环境,通常是棕色或灰色具有白色斑纹
  • 大小:中等至大型(1/4 - 3/4英寸长)
  • 它们是独特在携带它们的卵囊和它们在一起,附着在其腹部末端

钓鱼蜘蛛

钓鱼蜘蛛通常是被发现靠近水源的地方。这些蜘蛛利用它们令人难以置信的长腿"滑水” 横跨和驶入水中捕捉猎物。虽然由于这种蜘蛛的大尺寸可能会令人使到害怕,它的叮咬对人类并不严重的。

囊蜘蛛

囊蜘蛛通常是在室内发现。代替传统的蜘蛛网,囊蜘蛛构建一个,由丝绸做的类似的管或囊,细小避难所。囊蜘蛛最喜欢的筑巢地点为是在高高的墙壁,天花板附近或室外叶子下或附着在石头的底部。

囊蜘蛛的特征

  • 外观:黄色或浅色
  • 大小:小到中型(1/5 - 2/4英寸长)

蟹蛛

蟹蛛倾向于留在室外。因其像螃蟹一样向前走,侧身,向后的能力故而得名。这些蜘蛛等待其猎物来到它们,通常筑巢于花,茎或叶,直到毫无戒心的受害者经过。

蟹蛛的特征

  • 外观:颜色范围从黄色或红色至棕色或灰色
  • 体形:四个前腿从两侧伸出来的,像螃蟹,而且通常长过四个后腿
  • 大小:小到中型(1/10 - 2/5英寸长)

平腹蜘蛛

平腹蜘蛛最常见发现在白天的室外,石块下或松散的树皮丝绸做的避难所内,类似囊蜘蛛。到了晚上,一个特定类型的平腹蜘蛛,牧师蜘蛛,是已知会进入家园,寻找猎物。在室内,它们通常隐藏在物件之下或在裂纹或裂缝。

牧师蜘蛛的特征

  • 外观:棕色的身体,灰色的腹部,标有白色条纹
  • 大小:中型(1/2英寸长)
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