Black Widow Abdomen

This hourglass mark can be yellow and on rare occasions white.

Black widow abdomen. The female may lay several masses of eggs during one summer. The bite of the black widow often produces muscle pain nausea and mild paralysis of the diaphragm which makes breathing difficult. The egg case is. The bite brings weakness too.

Most victims recover without serious complications but a bite can be fatal to very small children and the elderly. Most victims recover without serious complications but a bite can be fatal to very small children and the elderly. The female s body is 14 16 mm 1 2 in in length and is black often with an hourglass shaped red mark on the lower abdomen. Hailing from the mediterranean region latrodectus tredecimguttatus known as the mediterranean or european black widow is characterized by 13 spots situated on the upper surface of its abdomen.

The bite of latrodectus tredecimguttatus generally known as the black widow spider bws can cause a variety of symptoms including muscular spasm back pain abdominal pain severe sweating and shivering. Black widows can be distinguished by their hourglass shaped marking on the abdomen. Male and female black widows can also be distinguished from one another due to markings on the male s dorsal upper abdomen. The bite of the black widow often produces muscle pain nausea and mild paralysis of the diaphragm which makes breathing difficult.

They are usually red colored but also appear yellow or orange. Black widow genus latrodectus any of several species of black spiders distinguished by an hourglass shaped marking on the abdomen. Latrodectus hesperus the western black widow spider or western widow is a venomous spider species found in western regions of north america. These marks which vary between red or white often appear in the form of a single stripe or a series of bars and spots.

However quadriplegia has not been mentioned in the literature here we present a 42 year old male with bws bite who developed muscle weakness and paralysis.