While these two spiders are technically cousins, there are many differences between a redback spider vs black widow spider.

The black widow spider ... genus in which there are 31 recognized species including the Australian red-back, brown widow spider (sometimes called the gray widow), and the red widow spider.

The redback spider (Latrodectus hasselti) is one of Australia's most iconic arachnids. It's a member of the widow spider family, closely related to the black widow spider. They're famous for their ...

The redback spider is a close relative of the black widow and can be found across Australia, particularly in urban areas. Because of this, they are often found in sheds, garages, and in outside ...

Of these, 45 showed in-vitro neutralization of the black widow spider’s alpha-latrotoxin neurotoxin. According to the study, one antibody called MRU44-4-A1, showed particularly high neutralization.

Between Jan. 22 and April 21, MCAS Iwakuni officials reported killing 62 black widows, 13 brown widows and 204 redback spiders — both mature and immature — to the prefecture.

Editor’s note: This article was updated at 5:35 p.m. Friday, Nov. 17, 2023, to correct that the red hourglass shape is on black widow spider’s abdomens. Originally Published: November 17, 2023 ...