Borer may refer to:

Insects

Moths

Diatraea grandiosella The southwestern corn borer, ''Diatraea grandiosella'', is a moth belonging to the sub-order Heterocera. Like most moths, The southwestern corn borer undergoes complete metamorphosis developing as an egg, larva (caterpillar), pupa and adult. It ...

'', southwestern corn borer *'' Podosesia syringae'', ash borer or lilac borer *'' Melittia cucurbitae'', squash vine borer, a pest of cucurbit vines *''

Ostrinia ''Ostrinia'' is a genus of moths in the family Crambidae described by Jacob Hübner in 1825. Several of them, including the European corn borer, are agricultural pests. Species *'' Ostrinia avarialis'' Amsel, 1970 *'' Ostrinia dorsivittata'' (Mo ...

'', pests of maize and other plants

Beetles

* '' Cosmopolites sordidus'' (banana stemborer), a true weevil in genus '' Cosmopolites'' *

Ptinidae Ptinidae is a family of beetles in the superfamily Bostrichoidea. There are at least 220 genera and 2,200 described species in Ptinidae worldwide. The family includes spider beetles and deathwatch beetles. The Ptinidae family species are hard ...

, a family of beetles, especially: ** '' Anobium punctatum'', common furniture borer *

Woodboring beetle The term woodboring beetle encompasses many species and families of beetles whose larval or adult forms eat and destroy wood (i.e., are xylophagous). In the woodworking industry, larval stages of some are sometimes referred to as woodworms. The ...

Devices

Cork borer A cork borer, often used in a chemistry or biology laboratory, is a metal tool for cutting a hole in a cork or rubber stopper to insert glass tubing. Cork borers usually come in a set of nested sizes along with a solid pin for pushing the remov ...

, a tool of the chemistry laboratory * Raise borer, a mining machine * Instep borer, an instrument of torture *

Tunnel boring machine A tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata. They may also be used for microtunneling. They can be designed to bore thro ...

Reamer A reamer is a type of rotary cutting tool used in metalworking. Precision reamers are designed to enlarge the size of a previously formed hole by a small amount but with a high degree of accuracy to leave smooth sides. There are also non-precisio ...

, a rotary cutting tool used in metalworking * Drill

Other

* Hotheaded Naked Ice Borer, a fictional mammal * Borer Lake, United States * בורר ("borer"), Sorting/Purification, one of the activities prohibited in Jewish law on Shabbat {{disambiguation Animal common name disambiguation pages