Redback Spider from Australia

black and red spider
Location: North East USA
October 25, 2010 8:18 pm
Dear Bugman, I beg of your help. I am finding these red and black spiders (i believe) in the house. I live in CT. These bugs are so tiny maybe the size of a grain of rice. The first thing you notice is a little glossy redish black ball. I only find them on the rugs, havent seen them elsewhere. I have two new babies and I am soooooo scared. I dont have a camera to take a picture but I pray you can still help us.
I provided a picture of the closet spider i can find, this resembles the body structure but not the color or size.
Signature: BR

Redback Spider

Dear BR,
You do have some cause for concern if your creatures are the same as the one in the photo, though we have our doubts since you did not provide your own photograph.  This is an immature Black Widow.  Black Widows are one of only a few North American spiders with a dangerously venomous bite, and young children would be more severely affected by a bite than a healthy adult would.  Again, we really doubt that the creatures you have found are Black Widows.

Ed. Note: It has been brought to our attention in a comment that the spider in the photo is most probably not a North American species, but a mature Redback Spider from Australia, which is why the location in which a creature is encountered is often critical information for proper identification.

i cannot thank you enough for you quick response, I dont believe they are either. The structure is similar but they carry a little ball like on them it allmost looks like a bead, if i look at it very close its a maroonish dark red color. We have recently discovered we have carpet beetles and i dont know if this may be related, again we find these spiders on the rug and between the rug and wall. any other advice would kindly be appreciated i will try to get a picture to you as soon as i can, you are all wonderful people for doing this for others. thank you again

4 thoughts on “Redback Spider from Australia”

  1. My guess would be that BR is finding spider beetles, a completely harmless and fairly common household creature. They closely resemble the description she gives, having glossy, reddish, ball-like bodies. And even though they are in fact tiny beetles, they do of course resemble spiders, hence the common name.

    Susan J. Hewitt


Leave a Comment