It is the complete intentions of Michigan Spiders to be a source of good information that can be trusted, to help others learn about spiders with the belief that fear is trumped by knowledge. Recently, someone pointed out to me that I have done something that can be very counter productive to the latter.
You see, the one spider that is most feared in Michigan is the Brown Recluse. Even though the Brown Recluse is not indigenous to Michigan, and it is actually a rare case one is found, it is still the most feared spider.
The problem is, the recluse does not like to spread about like most spiders. A colony can start in a house (down south of course), and it can thrive for years and the house next door will likely never see one. When it establishes itself, it stays there. When eggs hatch, they stay in that vicinity. But they like to make their homes in boxes and things and when a family packs up and moves, they often take a few of the spiders with them. In most cases, the spiders they take with them are either male or a female that has not mated recently. So sometimes a rogue Brown Recluse is found in a state where they are not indigenous. On a very rare case, a female Recluse will be transported, lay eggs and a small colony will develop in a state where they are supposed to be.
Now keep in mind that even though a small colony might develop in a state where they dont belong, this does not mean they are becoming indigenous to that state. Remember, they are extremely reclusive and do not spread from their habitat unless something forces them to move. So instead of spreading through that state and becoming native to that state, they stay in the one building they are in and wait to be found and exterminated. If they establish a small colony in a tree or barn, and it is a cold weather state, they die during the winter.
Here in Michigan, most people believe they are indigenous to the state. When I tried to explain that they are not here, I had numerous debates, in comments and in emails, with people insisting they are here. Everyone seems to know someone who was bit by a recluse because their doctor diagnosed them with a Brown Recluse bite. Even though the spider was never seen, identified, or caught. Even though it is actually impossible for a doctor to identify a recluse bite by the wound alone. There are no tests that can positively identify a recluse bite. So when one Brown Recluse is discovered here in Michigan, there will be people who will use that as absolute proof that they do exist in Michigan. Imagine what it must mean then, when a small colony is discovered.
I will admit that something like this happened last year where a woman's house was found to have a small colony. Then less than a year later, a gentleman found a rogue recluse spider in his home. He gets a lot of packages from out of state and since he has not found any others, it is simple to figure out his spider was transported into the state. I was writing articles in Michigan Spiders about these sightings. Giving details on what cities they were discovered and such, thinking I was just writing an interesting news story about such an infamous spider being found here. What I did not consider was how these articles would be taken.
Some, maybe even most, would read these articles for what I meant them to be. An interesting story. However, whether I like it or not, too many would read these articles and their minds would wrap around one simple fact. The dreaded Brown Recluse is being found in Michigan! It wouldn't matter that these two cases are only two of the possibly five or six sightings ever actually identified here in Michigan, or that the reputation of the Brown Recluse makes the spider far more dangerous than it really is. Their minds would read those points, but their fears would push those facts aside and focus on the simple fact that the dreaded Brown Recluse was sighted in Michigan.
So articles meant to be news worthy and harmless, against my better intentions, would do just the opposite of what I want Michigan Spiders to be about. Those articles would cause fear and promote the myth of the Brown Recluse being in Michigan. Because this was pointed out to me, and by someone I have utmost respect for, I had to step back and consider whether it was good to have those articles on Michigan Spiders or not. In the end, I decided that it would make very little difference for people to know the spider was sighted in Michigan, but could be a launching pad for more fear and missinformation, so I have removed those articles from my site.
I apologize to those who were interested in the sightings, and to those who may have been effected by the sightings. Rest assured that if enough sightings happened within a span of time to make me believe there was even a chance that the Brown Recluse was becoming indigenous, I would be more for warning people than calming fears. But right now that is not the case. If you made it your mission to find a Brown Recluse in Michigan, the odds would be very high that you will die of old age and never see one. So because the odds of ever seeing one are so slim, I cannot in good faith, leave articles that will have the ability to cause fear and add to a myth for no good reason.
Showing posts with label Brown Recluse. Show all posts
Showing posts with label Brown Recluse. Show all posts
The Myth of the Brown Recluse and the Black Widow Spiders
Brown Recluse - It seems that everyone knows someone who was bit by a Brown Recluse here in Michigan. I have had several comments here from people saying they were bit or knew someone who was bit by the Recluse. I have had several e-mails stating the same thing. So let me start this off by saying... "The Brown Recluse does NOT live here in Michigan!"
If you do not wish to believe me, try checking this page from the DNR itself.... DNR on the Brown Recluse Spider.
The problem, in my opinion, is two fold. First, you have some infections like the MRSA infection that acts and looks very, very, similar to the Recluse bite. There are also some allergic reactions to spider bites that can have similar looking symptoms. Second, you have doctors who go to school, or do clinical portions of their studies, down in the southern states where the Recluse is actually indigenous. They are taught about the Recluse bite and so when they come to Michigan and see these same looking symptoms, they assume they are Recluse Spider bites. They, like most Michiganders, do not even realize that the Brown Recluse is not even in Michigan.
So you have doctors seeing these things, and misdiagnosing them as Recluse bites. The more doctors who diagnose infections and reactions as Brown Recluse bites, the more people spread the false rumors that the Recluse lives in Michigan and how they were bit. The more they spread the rumors, the more people who believe the Recluse is here in Michigan and so new doctors hear this and believe it as well. And the vicious circle continues....
According to the DNR, there has only been one confirmed sighting of the Brown Recluse here in Michigan ever. I have had two other experts tell me that the Brown Recluse is not in Michigan. I have found no documented cases to say otherwise.
If you are ever diagnosed here in Michigan by a doctor saying you were bit by the Brown Recluse, please tell them they are mistaken and to check for infectious diseases like MRSA or possible allergic reactions. It is my belief that, too often they treat people for Recluse bites and the infection does a lot more damage than it would if they treated for the correct thing to begin with.
Black Widow - I find it funny how everyone believes the Recluse is in Michigan and the Black Widow is not, when the exact opposite is the truth. Most people will tell you the Black Widow is not in Michigan. They are in fact here in Michigan.
It is far more common for the Black Widow Spider to be found along the Western coast of the lower peninsula of Michigan, but they are found in other areas as well, if more rarely. As a child, a found two spiders that I do believe were the Black Widow, in Madison Heights. Just this year alone, I have had several people tell me they found them and some of those people sent me pictures to prove it. So far the sightings that have been brought to my attention, have been along the West Coast as far North as Sleeping Bear Dunes. I have had reports from Gaylord and another place a little East of that (sorry, I cant remember the name of that place).
It is important to know that not all Black Widows are all black with a red hourglass underneath, like you see on TV all the time. The Northern Widow can have a red spotted stripe down its back. Some will have yellow or white markings on the sides of the abdomen and some can have red on the legs as well. It is important to learn more about the different looks of the Black Widows so you can recognize them if you ever see them.
To My Readers: The information I have put in this article is backed up by facts and evidence. I feel I have seen sufficient proof that the Widow does in fact live in Michigan, and sufficient proof that the Recluse in fact is NOT indigenous to Michigan. If you do not agree with this information, you are more than welcome to state your case, under this guideline..... Your statement must be backed up by some kind of evidence. Documents, an official expert getting in touch with me, an official news station doing a story on it, etc... However, if any new comments are left, stating the opposite of what I have displayed here, AND there is no kind of evidence given to back up the claims, the comment will be deleted.
It is too important to me that my readers can come to Michigan Spiders to get the truth. If my information is wrong and evidence is put forth to back that up, then I will change the information accordingly. But I will no longer allow comments to continue to be left to spread fear when there is no proof to back it up. All evidence (at this time) says the Recluse does NOT live in Michigan. No evidence says that it does. If it did, I would display it so because I believe the people should be aware of dangers rather than kept from the knowledge of them. That is why I let everyone know the Black Widow is in Michigan. But in the case of the Brown Recluse, there has yet to be any evidence put before me to say it is here in Michigan, therefore, I see any statements saying otherwise as nothing more than comments to create fear that is not called for.
If you wish me to change that stance, give me evidence as a reason to do so. Hearsay stories is not good enough. If you do not have evidence and just wish to argue, please feel to argue through e-mail. Convince me I am wrong, and I will change my story here.
If you do not wish to believe me, try checking this page from the DNR itself.... DNR on the Brown Recluse Spider.
The problem, in my opinion, is two fold. First, you have some infections like the MRSA infection that acts and looks very, very, similar to the Recluse bite. There are also some allergic reactions to spider bites that can have similar looking symptoms. Second, you have doctors who go to school, or do clinical portions of their studies, down in the southern states where the Recluse is actually indigenous. They are taught about the Recluse bite and so when they come to Michigan and see these same looking symptoms, they assume they are Recluse Spider bites. They, like most Michiganders, do not even realize that the Brown Recluse is not even in Michigan.
So you have doctors seeing these things, and misdiagnosing them as Recluse bites. The more doctors who diagnose infections and reactions as Brown Recluse bites, the more people spread the false rumors that the Recluse lives in Michigan and how they were bit. The more they spread the rumors, the more people who believe the Recluse is here in Michigan and so new doctors hear this and believe it as well. And the vicious circle continues....
According to the DNR, there has only been one confirmed sighting of the Brown Recluse here in Michigan ever. I have had two other experts tell me that the Brown Recluse is not in Michigan. I have found no documented cases to say otherwise.
If you are ever diagnosed here in Michigan by a doctor saying you were bit by the Brown Recluse, please tell them they are mistaken and to check for infectious diseases like MRSA or possible allergic reactions. It is my belief that, too often they treat people for Recluse bites and the infection does a lot more damage than it would if they treated for the correct thing to begin with.
Black Widow - I find it funny how everyone believes the Recluse is in Michigan and the Black Widow is not, when the exact opposite is the truth. Most people will tell you the Black Widow is not in Michigan. They are in fact here in Michigan.
It is far more common for the Black Widow Spider to be found along the Western coast of the lower peninsula of Michigan, but they are found in other areas as well, if more rarely. As a child, a found two spiders that I do believe were the Black Widow, in Madison Heights. Just this year alone, I have had several people tell me they found them and some of those people sent me pictures to prove it. So far the sightings that have been brought to my attention, have been along the West Coast as far North as Sleeping Bear Dunes. I have had reports from Gaylord and another place a little East of that (sorry, I cant remember the name of that place).
It is important to know that not all Black Widows are all black with a red hourglass underneath, like you see on TV all the time. The Northern Widow can have a red spotted stripe down its back. Some will have yellow or white markings on the sides of the abdomen and some can have red on the legs as well. It is important to learn more about the different looks of the Black Widows so you can recognize them if you ever see them.
To My Readers: The information I have put in this article is backed up by facts and evidence. I feel I have seen sufficient proof that the Widow does in fact live in Michigan, and sufficient proof that the Recluse in fact is NOT indigenous to Michigan. If you do not agree with this information, you are more than welcome to state your case, under this guideline..... Your statement must be backed up by some kind of evidence. Documents, an official expert getting in touch with me, an official news station doing a story on it, etc... However, if any new comments are left, stating the opposite of what I have displayed here, AND there is no kind of evidence given to back up the claims, the comment will be deleted.
It is too important to me that my readers can come to Michigan Spiders to get the truth. If my information is wrong and evidence is put forth to back that up, then I will change the information accordingly. But I will no longer allow comments to continue to be left to spread fear when there is no proof to back it up. All evidence (at this time) says the Recluse does NOT live in Michigan. No evidence says that it does. If it did, I would display it so because I believe the people should be aware of dangers rather than kept from the knowledge of them. That is why I let everyone know the Black Widow is in Michigan. But in the case of the Brown Recluse, there has yet to be any evidence put before me to say it is here in Michigan, therefore, I see any statements saying otherwise as nothing more than comments to create fear that is not called for.
If you wish me to change that stance, give me evidence as a reason to do so. Hearsay stories is not good enough. If you do not have evidence and just wish to argue, please feel to argue through e-mail. Convince me I am wrong, and I will change my story here.
Brown Recluse and Mediterranean Recluse (Very Rare in Michigan)
Due to the fact that the Recluse cannot live in temperatures of less than 40 degrees, the spider is NOT native to Michigan. In my searches, I have only uncovered four or five accounts where the Brown Recluse has been positively identified here in Michigan. The DNR lists one case and the Entomology Department of MSU has an article listing three cases. Assuming the DNR case is not one of those other three, that would only be four time ever in Michigan. The fifth happened in June of 2013, when Rod Crawford, the Curator for Arachnids at the Burke Museum, positively identified two specimens sent to him by a woman in Livonia Michigan.
The Recluse seems to be the most feared spider in Michigan, even though they are not even indigenous to Michigan. Often when pictures are sent in to me to identify, people do so because they are afraid the spider they found might be a Brown Recluse. If you find a spider and fear it may be a Recluse, look closely at the eye pattern. If the eyes are not in three groups, with two eyes in each group, it is not a recluse. If it has banded legs or stripes or patterned markings on it abdomen, it is not the recluse. If you look at these things and still believe it may be a recluse, please send me as clear a photo as you can. My email address is on the front page near the top. Please, do not discard any spider you believe is to be a Brown Recluse. Even if I agree, the only way it can be positively identified is to send it to a real expert to be dissected.
The Recluse seems to be the most feared spider in Michigan, even though they are not even indigenous to Michigan. Often when pictures are sent in to me to identify, people do so because they are afraid the spider they found might be a Brown Recluse. If you find a spider and fear it may be a Recluse, look closely at the eye pattern. If the eyes are not in three groups, with two eyes in each group, it is not a recluse. If it has banded legs or stripes or patterned markings on it abdomen, it is not the recluse. If you look at these things and still believe it may be a recluse, please send me as clear a photo as you can. My email address is on the front page near the top. Please, do not discard any spider you believe is to be a Brown Recluse. Even if I agree, the only way it can be positively identified is to send it to a real expert to be dissected.
Abdomen - Brown and ablong but shade can range from lighter to darker. It is believed that this can change depending on how recently they have fed.
Cephalothorax - Approximately 2/3 the size of the abdomin, it has a darker pattern at the head of the cephalothorax that extends towards the rear with a thin stripe leading towards the rear. The pattern has a shape of a violin, giving the Brown Recluse the knickname of the Violin Spider, Fiddleback Spider, and the Brown Fiddler.
Legs - Long and thin and closer to the color of the abdomen with no stripes or hairs.
Size - The body is approximately 1/4 to 3/4 of an inch, but can sometimes be a little larger.
Bite Info - It is rare that a recluse will bite. It usually has to be forced to bite by pushing against it and making it defend itself. Of the cases it does bite, most bites have little effect and heal on their own in a couple of days. It is only the rare venomous bite that is cosidered dangerous.
The venom of the Recluse is a cytotoxin, which destroys cells causing the body tissue to deteriorate. The bite is often painless and not noticed for several hours before the infected area becomes irritated. In some cases, the bite is nothing more than an irritation but there is some cases where it can be dangerous. Left unattended, the wound can develop a sore that will continue to grow. Even treated the infected area can create a sizable wound. In some cases the victim will develop symptoms that lead to systemic hemolysis, coagulopathy, renal failure, and, rarely, even death.
Other Notes - Though dangerous, the Recluse is not an aggressive spider. Bites are pretty rare and almost always the fault of the victim. Most bites occur when the spider is in shoes, towels covers when people use them or when someone picks up a box in a basement and presses against the recluse.
Recluse spiders are night hunters and will feed on dead insects as well as living.
It should also be noted that there are thousands of people going to hospitals every year to have what they believe is a recluse bite, and too often doctors are misdiagnosing them. Consider this. In states where the Recluse is common, it is still uncommon for people to be bit by them. Of those who are bit, it is uncommon for the bite to develop the nasty wounds we so often hear about. So if it is so extremely rare for someone in Michigan to come across a Recluse, how much more rare would it be for someone in Michigan to be bit by the infamous spider? How much more rare would it be for someone in Michigan to not only find one and get bit by one, but for the bite to develop a terrible wound? The fact is, if you are here in Michigan and your doctor says you were bit by a Brown Recluse, go see another doctor and have him check you for infections like MRSA and Allergic reactions. Because the odds you were actually bit by a Recluse here in Michigan is almost impossible.
If you are ever bit by a recluse, or ANY other spider, it is important to retrieve the spider (dead or alive) for true identification. I have recently had an expert from Spider Myths (Burke Museum) inform me that even medical doctors often misidentify the recluse spider and it is important that a real Arachnologist is the one to identify it.
Genus - Loxosceles reclusus (Brown Recluse), Loxosceles rufescens (Mediterranean Recluse)
Cephalothorax - Approximately 2/3 the size of the abdomin, it has a darker pattern at the head of the cephalothorax that extends towards the rear with a thin stripe leading towards the rear. The pattern has a shape of a violin, giving the Brown Recluse the knickname of the Violin Spider, Fiddleback Spider, and the Brown Fiddler.
Legs - Long and thin and closer to the color of the abdomen with no stripes or hairs.
Size - The body is approximately 1/4 to 3/4 of an inch, but can sometimes be a little larger.
Bite Info - It is rare that a recluse will bite. It usually has to be forced to bite by pushing against it and making it defend itself. Of the cases it does bite, most bites have little effect and heal on their own in a couple of days. It is only the rare venomous bite that is cosidered dangerous.
The venom of the Recluse is a cytotoxin, which destroys cells causing the body tissue to deteriorate. The bite is often painless and not noticed for several hours before the infected area becomes irritated. In some cases, the bite is nothing more than an irritation but there is some cases where it can be dangerous. Left unattended, the wound can develop a sore that will continue to grow. Even treated the infected area can create a sizable wound. In some cases the victim will develop symptoms that lead to systemic hemolysis, coagulopathy, renal failure, and, rarely, even death.
Other Notes - Though dangerous, the Recluse is not an aggressive spider. Bites are pretty rare and almost always the fault of the victim. Most bites occur when the spider is in shoes, towels covers when people use them or when someone picks up a box in a basement and presses against the recluse.
Recluse spiders are night hunters and will feed on dead insects as well as living.
It should also be noted that there are thousands of people going to hospitals every year to have what they believe is a recluse bite, and too often doctors are misdiagnosing them. Consider this. In states where the Recluse is common, it is still uncommon for people to be bit by them. Of those who are bit, it is uncommon for the bite to develop the nasty wounds we so often hear about. So if it is so extremely rare for someone in Michigan to come across a Recluse, how much more rare would it be for someone in Michigan to be bit by the infamous spider? How much more rare would it be for someone in Michigan to not only find one and get bit by one, but for the bite to develop a terrible wound? The fact is, if you are here in Michigan and your doctor says you were bit by a Brown Recluse, go see another doctor and have him check you for infections like MRSA and Allergic reactions. Because the odds you were actually bit by a Recluse here in Michigan is almost impossible.
If you are ever bit by a recluse, or ANY other spider, it is important to retrieve the spider (dead or alive) for true identification. I have recently had an expert from Spider Myths (Burke Museum) inform me that even medical doctors often misidentify the recluse spider and it is important that a real Arachnologist is the one to identify it.
Genus - Loxosceles reclusus (Brown Recluse), Loxosceles rufescens (Mediterranean Recluse)
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