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Hi everyone, this is Luis Gonzalez with Midway Pest Management, and welcome back to another
episode of What’s Bugging You?
Today we’re talking about a question we actually get pretty often: what’s the difference between male
and female brown recluse spiders? If you’ve ever seen one in your home, you might wonder if there’s a
way to tell them apart, and whether one is more dangerous than the other.
First, a quick refresher. Brown recluse spiders are common in the Midwest and are known for the
violin-shaped marking on their back and their six eyes arranged in three pairs. They tend to hide in
quiet, undisturbed areas like basements, closets, storage boxes, and garages.
Now when it comes to male versus female brown recluse spiders, the differences are actually pretty
subtle. To the average person, they usually look almost identical. Both males and females are typically
light to medium brown and about the same overall size, usually around a quarter to a half inch long not
including the legs.
One of the main physical differences is body shape. Female brown recluses tend to have a slightly
larger, rounder abdomen because they produce eggs. Males are often a little slimmer with a smaller
abdomen compared to the rest of their body. However, this difference can be hard to spot unless you’re
looking very closely.
Another difference is behavior. Male brown recluse spiders are more likely to wander. Their main goal is
to find a female to mate with, so they tend to move around more, especially at night. Because of that,
males are actually the ones people are more likely to see out in the open on walls, floors, or sinks.
Female brown recluse spiders, on the other hand, tend to stay hidden in their preferred harborages.
Once they find a safe spot, they often remain there for long periods of time. These locations might
include cardboard boxes, wood piles, storage bins, or cluttered areas where they won’t be disturbed.
Females are also responsible for producing egg sacs. A single female can lay multiple egg sacs in her
lifetime, and each sac can contain dozens of spiderlings. That’s one reason why addressing a brown
recluse issue early is important. If the environment is favorable, populations can slowly grow over time.
When it comes to venom, both male and female brown recluse spiders are venomous. There’s a
common myth that one is more dangerous than the other, but in reality both are capable of delivering
the same type of bite. The good news is that brown recluses are not aggressive and typically only bite
when they feel trapped or threatened, such as when someone accidentally presses them against the
skin in clothing, bedding, or shoes.
If you do start seeing spiders regularly inside your home, it’s a good idea to have the situation
evaluated. Often there are conditions that make the home more attractive to them, like clutter, storage
areas, or other insects they can feed on.
Professional pest management focuses on reducing hiding places, treating key areas where they travel,
and monitoring activity so the population can be brought under control.
If you ever come across a spider and aren’t sure what it is, taking a clear photo can be really helpful for
identification.Thanks for tuning in to another episode of What’s Bugging You? If you’re dealing with spiders or any
other pests, contact Midway Pest Management at 913-820-9737. For help identifying wildlife, send a
clear photo to info@midwaypestmanagement.com.