What are they?

Question

They look like long, very thin, hair-like worms. Stretched out to full length they are about 7 to 10 cm (2.75 to 4 inches) long. Diameter is like a thick human hair, or sewing thread. Mostly black but with very light coloured ends. Following a short, heavy rain this morning there were dozens of these critters on the surface of the garden, many of them around the young cabbage plants. Although they may have been there, in all our years of gardening, we've never noticed anything like this before. Any ideas?

Ross. Southern Ontario, Canada. New AgCanada Zone 5b

43º17'15" North
80º13'32" West To email, remove the obvious from my address.

Dusty Bleher · Accepted Answer

Did they by any chance display a "T" or "spade" shaped 'head' (at one end or the other...(:-o)!).Try these sites:San Jose, Ca.

RR · Answer

Hi Dusty,Thanks for the reply. Even using a magnifying glass these things don't have a "spade" end.Both ends are lighter in colour than the remainder of the body andtaper to a point.  Also, a description in one of your provided links states "They areabout the diameter of an earthworm.....".The ones in our garden are smaller than the diameter of Trilene XL, 2pound test monofilament fishing line. Ross.Southern Ontario, Canada.New AgCanada Zone 5b43º17'15" North80º13'32" WestTo email, remove the obvious from my address.

Dusty Bleher · Answer

Hmmm.  Okay.  Sounds like I'm off base.But, I've handled them.  And while they're (a thin) "earth worm" diameter when in the hand, they do stretch and can get very thin when extended. Although, at least in my experiences with them, they got about as thin as an automatic pencil lead, but not as thin as "Triline" or something like that...Oh well.  It was a stab in the dark.  I hope you get the answer you need. And when you do, please post it here so that I might learn about them as well...Later,DustySan Jose

Rez · Answer

When I lived in Minnesota, which has more or less the same climate, sometimes we'd see these critters, tho usually a bit larger than yours -- about the thickness of monofilament fishing line, but up to

6" long; you could barely make out a "head" if you squinted. Black or near-black in colour. They aren't "stretchy" like earthworms, and they aren't slimey. Sound like your creatures?

We called them "hair snakes". They seem to be completely harmless -- they don't visibly eat anything and they don't bite. I suspect they may be some sort of leech or flatworm.

~REZ~

Pat Kiewicz · Answer

I've seen these once, after a heavy rain.  I think they may behorsehair worms, a parasitic worm of insects.

RR · Answer

I do believe you've hit the nail squarely on the head. The description in your links matches these critters to a "T". Glad to learn that they're beneficial.

Ross. Southern Ontario, Canada. New AgCanada Zone 5b

43º17'15" North 80º13'32" West To email, remove the obvious from my address.

RR · Answer

And, the winner is:Pat in MI, who provided the following links which describe "my"critters perfectly. They're Horsehair Worms, aka Gordian Worms. pleased to know they are beneficial.Did you see this Dusty?Ross.Southern Ontario, Canada.New AgCanada Zone 5b43º17'15" North80º13'32" WestTo email, remove the obvious from my address.

Dusty Bleher · Answer

...Yep!  Most curious and interesting.  Thanks!Dusty...

Rez · Answer

snakes" in Minnesota.~REZ~

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