Mementomology

Memento.
Entomology.
Mementomology.

The study of bugs as souvenirs.

Rememberance.
Ants.
Rememberants.

Like examining butterflies in the pages of a book...

Delicate.
Caterpillar.
Delicaterpillar.

...or gnats on the windshield of a car...

Wiper.
Pursuit.
Wipersuit.

...or some third, even more hilarious example.

Anti-Climactic.
Ticks.
Anti-Climacticks.