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What's That Bug? does not endorse extermination

Fish Louse

Whats that big please?
Hello, i found this bug on my fish, can anyone tell me what is it? thanx and is it harmful to my whole tank now? i found it on my sick fish that has black spots all over it, then today i saw this bug, so i quarantined the fish and removed this bug to a cup alone for further investigation, please help me with my questions if you can, thank you
Sincerely,
Adel M. Ammari

Hi Adel,
This is a Fish Louse, Argulus species. We are posting your letter with a link to a site called the FishDoc, The Home of Fish Health, that talks about treatment. You should treat immediately to avoid an infestation.

Louse??? No: Gnat Bugs or Unique-Headed Bugs

Leaf-litter denizens
Bugman, I am stumped by this one. Hopefully you can provide an ident. I collected several of these guys from leaf-litter samples using a Berlese funnel . Along with the usual smattering of mites and springtails. They range in size around 1mm in length. Three tagma, three pair legs, possible sucking mouthparts (hypostome). Magnification is 100X and 400X respectively. Thanks.
George

Hi George,
We really don’t know what this is but we will post it on our Louse page in the hopes that someone can identify it.

Update (02/27/2006)
Hello Lisa and Daniel,
I was looking at your “what’s that bug” website and think I have some answers for your pages: On your louse page, the leaf litter critter is a heteropteran (true bugs) in the family Enicocephalidae (gnat bugs or unique-headed bugs). They are thought to be the most primitive heteropteran family (with fully membranous wings in the winged forms).I hope this helps! Matt Bertone
Entomology Graduate Student
Insect Molecular Systematics
North Carolina State University
Department of Entomology

Human Louse

This bug was found on an item of clothing (right before putting it on). It had somehow burrowed within the clothing material. Your help is much appreciated.
charlie

Hi Charlie,
Sorry to be the bearer of bad news, but you have a Human Louse, probably Pediculus humanus. Hogue has something to say about this bane to humankind. “Like the bedbug, this menace to human beings is not as prevalent today as in the past because of improved public and personal hygiene. Yet it still pops up here and there, most often among school children and indigents, and it remains the lone true companion of the hobo. This is a sucking louse found only on humans, to whom it causes much discomfort in exchange for its meal of blood. Two forms are known: the head louse infests the hair of the scalp, and the body louse lives in clothing near the body surface. Both are small (1/16 to 3/16 in.) and oval, with pointed legs. Unfed individuals are flat and yellowish to medium brown in color; after injesting blood they are swollen and show a dark clot of blood in the abdomen. Bites of the Human Louse cause a slight local reaction accompanied by itching. … In the vernacular, the Human Louse is known as the ‘Cootie.’ Its eggs, which are firmly attached to the hairs of the head and body, are the familiar ‘nits.’”