Those are the newly hatched nymphs of a predatory insect called a Wheelbug. They hunt for and feed on other small arthropods, stabbing them with a long, sharp proboscis through which they inject powerful digestive juices that enable them to suck the 'innards' of their prey out.

They are considered beneficial though the adults, especially, should be left alone. They also use those weapons to defend themselves...and it hurts like the dickens. Ask any university student who had this insect on the list for their entomology lab. ;-)

These tiny nymphs will grow up into something that looks entirely different...your friend should look them up so that she can identify them when she sees them.