This sort of condition is actually familiar to entomologists. It's called Eckbom's syndrome, or sometimes, 'delusory parasitosis'.
It's a condition which makes people believe they're invested with parasites.
This condition is not well studied. People who have it move frequently, go to many different doctors, and tend to not stick with treatment regimens.
It's accepted that about 25,000 people in the US have this condition, although the numbers are likely much higher.
Traver's 1951 paper is important because it's considered the best first-person account of the illness.
Her case is also pretty standard. A disproportionate amount of people with this condition are middle-aged or older, and female.
Traver's account of her condition is undeniably important, but her observations are faulty. Beyond that, there's proof of harm because it's been used to support the claim that these mites are parasitic.
So it should be retracted, right?
Well, there's problems with that, too.
Mental disorders of various types are not uncommon in the scientific world.
Autism spectrum disorders are not uncommon (@Stylopidae is diagnosed), and depression is also pretty common.
So it's unethical to say that mental disorders are incompatible with good science.
Another thing to point out is that Travers herself kept publishing during this period, and her papers published while she was suffering from this condition are still cited in important aquatic insect keys.
For example, the Merrit & Cummins aquatic keys (p.1121, for ref).
So...entomologists know the paper needs to be dealt with.
We can't retract it because the author had an illness, but we also have to recognize that it's an important paper even if it's for reasons unintended by the author.
This case has been in the background of entomology for awhile.
In 2011, @mshelomi published reccomendations to either retract or publish a letter of concern in a scientific ethics journal.
To this day, as far as I know, the paper hasn't been retracted...and it's unlikely to ever be retracted at this point for reasons Shelomi has pointed out.
The damage has already been done, and retracting it may cause a backfire effect.
Even though Traver's observations on her infestation are questionable, I still believe that her paper (as well as Shelomi's) should be required reading for any entomologist who deals with the public.
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So...first, I believe that these people are accurately describing their perceptions of medical issues.
Urban IPM Extension people can go through samples to find insects, inspect homes for infestations (bed bugs, fleas, etc), get someone to do skin scrapings for Scabies, etc.
However, after that, they need to be passed onto a doctor.
Often times, attempts at self-treatment can cause skin irritation. Pesticide poisoning can also cause crawling sensations.
Brain tumors, autoimmune diseases, even cold weather can do this as well.
A new meme going around FB claims the WoodLouse Spider is a "deadly new species" wrecking havoc in the Southern US
It's a completely harmless spider, but it still has a neat story to tell.
For the first of this week's two #DeepDives, let's explore the biology of Dysdera crocata
So, for the first tweet in this series, let's put these rumors to rest with data.
There's a lot of verified bites from D. crocata in the medical literature-which is rare. One person allowed themselves to be purposely bitten multiple times.
No deaths; everyone was just fine.
D. crocata gets it's name-the woodlouse spider-from it's food.
They live in dark, moist, areas and are adapted to feeding on sow bugs...sometimes called rollie-pollies.
They use those huge mandibles to foil the isopod's defensive rolling.
We did consult him for help with moth IDs here on Twitter, and although there's no way we could have known he was doing this, we still feel the need to apologize for exposing our readers to-and let's just put it as bluntly as possible-an alleged child predator.
We try to be careful about who we consult, and let into our conversations.
Unfortunately, it's not always possible to know what's going on behind the scenes.
Needless to say, we will not be requesting any more assistance from this person.
With Glyphosate being in the news due to a recent court ruling, let's take this opportunity to explore the history of pest control in this week's #DeepDive.
It's a huge and complex topic, so the best we can do is a brief overview.
It's not really known when humans started using pesticides.
The first agricultural societies began about 10,000 BCE, with several independent shifts around the world from relatively nomadic lifestyles to those tending crops.
The first records of pesticides being used is in Sumeria, where they used elemental sulfur to control crop pests.
This is largely an accident of geography; Sulfur deposits are abundant in a stretch between Mosul and Fatha...which allowed easy access.