Scientists in a piece of Lebanese amber found four small insects that lived 130 million years ago and were killed by the impact of gum tree after their eggs were directly plucked.
The discovery is the first ever fossil evidence of a short-lived tool used by insects to free from its shell.
Although scientists are not sure exactly how these creatures die, their falling into the trap at this stage sheds new light on the evolutionary history of ancient insects.
Many modern insects still use "egg lobes" to free themselves from their shell, but they quickly disappear as soon as the insect comes out.
Scientists believe that finding this feature dates back to prehistoric times and is unprecedented.
The researchers involved in the study, Dr. Michael Engel, a scientist at the University of Kansas - that the structures that hatch insects tend to disappear quickly, so obtaining fossil evidence on them is exceptional.
The amber piece, which contained all four samples in Lebanon, was found, and pieces of eggshells were next to insects that were almost the size of the pinhead.
Scientists believe that the appearance of the gum occurred very quickly because some insects were still holding eggshells.