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Photo#47207
Squirrel flea

Squirrel flea
Nashua, Hillsborough County, New Hampshire, USA
January 4, 2006
Size: around 2 mm long
I had gathered a roadkill squirrel up in a plastic shopping bag, of which I keep a handy supply in my vehicle for such occasions, and had it set up as an early season carrion station to see what type of beetles arrived first. Several days later, while checking for beetles (none found), I noticed a flea that had had enough of sitting on the cold corpse and was looking to leave. I helped him do just that by grabbing him and sticking him in a bottle.

I emptied the little guy into my light arena and tried to get some useful images. You'll have to be the judge...

In this view, he's heavily under the influence of 30 seconds in 70% ethyl alcohol. He had stopped kicking. I thought he was dead. But he revived fully less that a minute after this shot was taken. I was unrelenting though, and plunged him back into the booze for good. I didn't want him getting loose and biting *me*.

Images of this individual: tag all
Squirrel flea Squirrel flea Squirrel flea

nice to have more fleas
in the collection! These guys are a pain to photograph, dead or not. I like the different angles you got.

 
It's hard not to get those angles
if the flea is alive. I had to get it blotto to capture a good side view.

 
yeah but ...
...it's hard to get those angles if the flea is TOO alive, since they don't hold still very well.

 
You know,
I think the reason this one wasn't jumping was that he was unable to get enough purchase on the surface of the deli container. Also, these containers seem to build quite a static charge that also might interfere with some insects such as this flea.

 
JUMPING SQUIRREL FLEA
Not jumping because Squirrel Fleas DO NOT JUMP ...think about it. A winter storm blew down a winter shelter (nest) of an introducted (and pesky) Fox Squirrel (I think). I was so excited to look for beetles; alas, none. Lots of mites and fleas ...and flea larvae. I hesitated to bring them into the "lab" (bedroom) knowing the fleas would jump out but figured they are too specialized to go for my dwelling and they DID NOT JUMP OUT; not ONE! ....even at proding; they just scrambled away. Ha! Of course ...not a good idea when a hop might put your eons away from your host. Ha ...didn't know that. Not verified except in this instance of experience, observation, and my interpretation. ciao mep

 
static
That may explain something I couldn't figure out a few days ago. When I first put the 4 gopher fleas in a plastic container, they weren't jumping much. I then put them in the fridge. When I took them out the next day, there was some condensation on the container, and they were jumping like crazy. I couldn't figure out why getting them cold would make them more active, but maybe it was the static charge that was preventing them from being active in the first place, and a bit of condensation reduced the static charge.

After that, they went in the freezer.

 
Polyethylene is worse.
I've seen tiny insects walking on their forelimbs only, with the rest of them held aloft by static charge. Sometimes when I've tried to shoot tiny insects on plastics and orient them for the shot with a fine camelhair brush, the static charge transfered to the brush will send the little guys twirling or even flying several inches.

 
squirel flea
Does anyone know if this type of flea can infest humans or their homes? and what is the pesticide used for treatment? Thank you for your great pictures. I have been having a lot of skin problems and something biting me. I have had my home professionally inspected for Bed Bugs as I have heard they are such a problem now day's. They said it isn't bed bugs, but what ever it is looks a lot like this flea and they are very elusive. They never seem to be around when I have house inspected, which I have had done several times....
mmarsha

 
It does sound like you've got fleas
but there are 275 species in the US and there have preferred hosts. I don't know how many species will bite humans but the cat flea will and those are the VAST majority of fleas you're likely to encounter. Cat fleas also love dogs so one way to get them to leave is to arrange a half-hour visit by a dog (so the fleas will climb aboard), after which it can be taken outside and given a flea bath.

JIM!!
you got the poor guy THAT drunk?

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