"Predicting the distribution of poorly-documented species, Northern black widow (Latrodectus variolus) and Black purse-web spider (Sphodros niger), using museum specimens and citizen science data".

The Northern Black Widow is a cool spider found mainly on the ‘East Coast’ of North America. It’s a close relative to the southern and western black widows.

May 19, 2020 · The Northern Black Widow Spider is found throughout the eastern US, from southern Canada south to Florida, and west to eastern Texas, Oklahoma and Kansas. In Michigan, they …

Northern black widows, scientifically known as Latrodectus variolus, are venomous spiders belonging to the family Theridiidae. They are a native species found in North America, primarily in the eastern and …

The most medically significant spider in the northeast is the northern black widow spider Latrodectus variolus. The closely related brown widow spider (L. geometricus) and the false widows (Steatoda) …

Jan 29, 2025 · The venom of both types of Black Widow females is toxic, but the Northern Black Widow's is less so. Only females are harmful; males are slightly different in pattern and are …

Learn to identify the Latrodectus Variolus also known as the Northern Black Widow with detailed images, habitat info, behavior traits, key identification tips and role in the ecosystem and find if this insect is …

Sep 12, 2020 · In this article, we are looking specifically at the Northern black widow. Despite its name, this species can be found throughout the Eastern part of the United States – from Texas to Florida …

Dec 13, 2022 · The Northern Black Widow is typically considered an "East Coast" spider, it occurs from northern Florida to south-eastern Canada. This species is most common in the northern part of its …

The northern black widow, L. variolus, is more common in the northern states. The anterior and posterior portions of the ventral hourglass are not joined at the middle, and red and white marking on top of …