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Description. The eye arrangement of spiders in the genus Latrodectus. Female widow spiders are typically dark brown or a shiny black in colour when they are full grown, usually exhibiting a red or orange hourglass on the ventral surface (underside) of the abdomen; some may have a pair of red spots or have no marking at all.
- Latrodectus Bishopi
Latrodectus bishopi is the scientific name for the red widow...
- Latrodectus Tredecimguttatus
Latrodectus tredecimguttatus, also known as the...
- Latrodectus Variolus
Latrodectus variolus, the northern black widow spider or...
- Latrodectus Mactans
The symptoms are caused by lymphatic absorption and vascular...
- Latrodectus Hesperus
Latrodectus hesperus, the western black widow spider or...
- Latrodectus Indistinctus
Latrodectus indistinctus is a species of spider in the...
- Latrodectus Hasselti
The redback spider (Latrodectus hasselti), also known as the...
- Latrotoxin
A latrotoxin is a high-molecular mass neurotoxin found in...
- Latrodectus Bishopi
Latrodectus tredecimguttatus, also known as the Mediterranean black widow[2] or the European black widow, [3] is a species in the genus Latrodectus of the widow spiders. It is commonly found throughout the Mediterranean region, ranging from southern Iberia to southwest and central Asia, hence the name.
The symptoms are caused by lymphatic absorption and vascular dissemination of the neurotoxin. The symptoms that result from a black widow spider bite are collectively known as latrodectism.
9 Ιουλ 2024 · A black widow spider bite looks like 2 small dots surrounded by a red, swollen bump. It might cause you intense pain, muscle cramps, and excessive sweating. If you think you’ve been bitten by a black widow spider, seek medical attention as soon as possible.
16 Αυγ 2023 · Black Widow Spider Bites Pictures. Black widow spiders are known for their potent venom and distinctive appearance. While bites from these spiders are relatively rare, they can cause serious symptoms that require medical attention. Bite Appearance. Black widow spider bites often appear as two small puncture marks surrounded by redness and swelling.
Identification: red hourglass on otherwise black spider. Females tend to be larger and deliver more venom ; Genus: Latrodectus; Black widows live in southern Canada and every U.S. state except Alaska. Bites are more common in warmer months ; Aptly named because of their sexual cannibalism (but only occurs approximately 2% of the time)
Black widows are notorious spiders identified by the colored, hourglass-shaped mark on their abdomens. Several species answer to the name, and they are found in temperate regions around the...
