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Latest Latrodectus Stories

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2009-11-25 08:20:00

Venomous redback spiders, named after their fiery markings, are invading Japan's Osaka region, a wildlife expert recently warned. It is believed that that they actually arrived years ago aboard a cargo ship coming from Australia, most likely in a container of Australian woodchips. Japan Wildlife Research Centre official Toshio Kishimoto reports that as many as a dozen people have been bitten, including a 6-year-old boy in June, who received the first antivenom treatment in Japan. "Their...

2009-09-29 09:57:04

A South African spider more poisonous than its cousin the black widow is spreading throughout the most southern part of California, authorities said. The brown widow first was spotted in San Diego in 2004 and since has multiplied by the thousands, KTLA-TV reported Tuesday. The brown widow recently was seen as far south as Imperial Beach, near the Mexican border, and as far north as Carlsbad in northern San Diego County. Brown widows are also being seen inland, rather than just in ocean...

2009-06-10 15:32:08

A Welsh couple returning home from a five-year stay in North America said they discovered a black widow spider stowing away in a garden hose. Mike Newman, 53, said he and his wife, Trish, has just returned from San Francisco when a mover helping them unpack at their Kinnerton house found the venomous spider and a sack of its eggs in a hose they brought back from the United States, WalesOnline.com reported Thursday. The woman from the removal firm was very calm to be fair, Newman said. I had...

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2009-01-05 17:20:00

A Seattle family said a black widow spider they found in a bag of red grapes has found a new home at the city's Woodland Park Zoo. Iris Hagemann, 34, said she was washing grapes for her 7-year-old son and 2-year-old daughter when she spotted the spider, the Seattle Post-Intelligencer reported Monday. Hagemann said her son, Timothy, was the first to recognize the spider as a black widow but it was not until her husband, Stuart Rabin, 44, examined the arachnid that they believed the young boy....

2008-12-15 10:20:13

A deadly black widow spider survived a trip from California in a bunch of grapes and ended up in the kitchen of a startled Canadian veterinarian. Tina Chivers, wife of Dr. Jeremy Chivers, said she began screaming Saturday as she washed the seedless red grapes and left them to dry in a sink in St. Catharines, Ontario, northwest of Niagara Falls. She told the St. Catharines Standard that when she spotted the spider's telltale red hourglass marking, she let out a scream that brought her husband...

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2008-12-08 10:13:25

Big males outperform smaller ones in head-to-head mating contests but diminutive males make ten times better lovers because they're quicker to mature and faster on their feet, a new study of redback spiders reveals. Published in the current online issue of Journal of Evolutionary Biology, the study shows the importance of maturation in defining mating and paternity success. In field enclosures, researchers simulated two competitive contexts favoring the development of differently sized male...

6450b399af7633df51f40539a3996e2b1
2008-10-14 13:10:00

Scientists say that certain exotic species of spiders are making their homes in the UK. Due to the UK's increasingly mild climate, arachnids arriving in imports of food and plants are now able to survive and spread. A species of false widow spider have been confirmed and some believe the deadly black widow could be the next to invade. The conservation group Buglife wants import rules to be strengthened to stem the tide of alien species invasion. "Other countries in the world take great care...

2008-09-08 15:00:33

By DYKES, Mervyn Beach strollers, if you come across a strange-looking object made from black, corrugated roofing material and labelled with red or yellow tags saying "Dept. of Conservation", leave it alone - there could be poisonous kapito spiders lurking beneath. DOC has enlisted the help of 11 spider-friendly and committed volunteers to launch a year-long survey of red katipo spider populations. Red katipo, or Latrodectus katipo, are endangered endemic widow spiders that were once...

2008-04-25 00:00:08

By The Associated Press SYDNEY, Australia (AP) - A tiny Australian hospital is closing temporarily because of an infestation of poisonous spiders. The Baralaba Multi Purpose Health Service will close for 24 hours starting Thursday morning so officials can fumigate the building to get rid of redback spiders that have been found in large numbers in the main part of the hospital. Three or four patients will need to be moved to another hospital while the building is closed, according to a...

23cb92e13b7474d3a95037334a4689cd1
2007-05-09 20:12:52

NEW ORLEANS -- Louisiana bug experts say the poisonous brown widow spider, a cousin to the well-known black widow, is increasingly being spotted in Louisiana. The spiders are generally found in tropical areas but were reported along the Mississippi Gulf Coast last year. Entomologists with the Louisiana State University AgCenter say the spiders likely migrated from Florida through commercial imports of plants, food, building materials, or furniture. LSU entomologist Dennis Ring is advising...


Latest Latrodectus Reference Libraries

Cobweb Spider, Theridiidae
2014-06-23 08:44:11

Theridiidae is a family that contains over 2,200 species of cobweb spiders, also known as tangle-web spiders or comb-footed spiders, which can be found throughout the world. This species received its common names from its tendency to build three dimensional, sticky webs and from the comb of serrated bristles on the fourth leg. It is thought that this family is the only to hold a high diversity of web types, including gumfooted webs, which are highly similar to those produced by spiders in the...

Mediterranean Black Widow, Latrodectus tredecimguttatus
2013-10-09 12:38:45

The Mediterranean Black Widow (Latrodectus tredecimguttatus), known also as the Steppe Spider, is a species of widow spiders within the genus Latrodectus. It is commonly found throughout the Mediterranean region, ranging from Portugal to southwest and central Asia. Specimens from central Asia are also known by the binomial name Latrodectus lugubris; that name, however, is considered out of date, though it is still commonly found in the literature. Many consider this spider a Latrodectus...

0_155aab72510fe15423dbf5e33999a9c7
2009-07-03 19:06:41

The Redbacked Jumping spider (Phidippus johnsoni) is one of the largest and most common jumping spiders in the western parts of North America. It is not to be mistaken for the highly venomous and unrelated Redback spider (Latrodectus hasselti). The Redbacked Jumping spider may inflict a painful bite in self defense if threatened, although there are not any serious medical consequences. Adult Redbacked Jumping spiders are usually about 0.4 inches in length. Although the female has an...

0_cf4f3206f3c054a6945c86c4f82bf924
2009-06-26 18:10:24

The Biting Spider or False Black Widow (Steatoda nobilis) is a species of arachnid native to the Canary Islands. It was accidentally introduced to England around 1870 through imported bananas that were sent to Torquay. It is also found in continental Europe and Africa. Its range is extending northwards and is expected to someday be prominent in the United Kingdom. This spider resembles the black widow and is sometimes though to be one when spotted. It has a round, over-sized abdomen which...

0_7e4367a0ca9f493550ee0725c6c35c87
2009-06-26 17:05:26

The Triangulate Cobweb Spider (Steatoda triangulosa), also known as the Triangulate Bud Spider, is a species of common house spider that is found throughout the world. It is found along the coasts in North America, in southern Russia, in New Zealand, and in Europe. It is largely believed to be native to Eurasia. This spider is well known for the triangle-shaped pattern on the upper side of its abdomen. The adult female is 0.13 to 0.25 inches long. It has a brown-orange cephalothorax...

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Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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