Description/Identification Male, Female and Juvenile
The female black widow spider is considered the most venomous spider in North America. The venom of the black widow spider is 15 times as toxic as the venom of the prairie rattlesnake.
Only the female black widow is dangerous to humans; males and juveniles are harmless. The female black widow will, on occasion, kill and eat the male after mating. More than 35,000 species of spiders occur worldwide.
We believe in proper ID first to know what you’re dealing with.
Female black widow spiders are about .5 inch long, to about 1.5 inches long when the legs are spread, and are the most dangerous, and is the only one with the red hour glass marking.
Males are about half the female’s size, with smaller bodies and longer legs. The male has an hour glass marking, but his hour glass marking is more orang-tan.
Both females and males have shiny, globular abdomens and are mostly black, and sometimes brown.
Females usually have a reddish hourglass shape on the underside of their abdomens. In some species the females have a series of red spots and two crosswise bars on the underbelly.
Male black widows frequently have yellow and red bands and spots over their backs, as do both sexes of black widows in their immature stages.
Newly hatched baby widow spiders are predominately white or yellowish-white, gradually acquiring more black and varying amounts of red and white with each molt.
Juveniles of both sexes resemble the male and are harmless to humans.
Physical Affects if bitten by a venomous Black Widow
Black Widow spiders are highly venomous arachnids which are common throughout the Southwest United States. Due to the presence of latrotoxin in their venom, black widow bites are potentially dangerous and may result in systemic effects including severe muscle pain, abdominal cramps, hyperhidrosis, tachycardia, and muscle spasms. Symptoms usually last for 3–7 days, but may persist for several weeks. Contrary to popular belief, most people who are bitten suffer no serious damage, let alone death. But bites can be fatal, usually to small children, the elderly.
Latrotoxins are the main active components of the venom and are responsible for the symptoms of a widow bite. Hyperhidrosis is a condition characterized by abnormally increased sweating in excess of that required for regulation of body temperature. Tachycardia, also called tachyarrhythmia, is a heart rate that exceeds the normal resting rate. In general, a resting heart rate over 100 beats per minute is accepted as tachycardia in adults.
Treatment to kill these dangerous spiders and other species of spiders is Monthly/ Bi-Monthly spraying to kill them and keep future intruders like these away.