Acorn Weevil

The Acorn Weevil's name is derived from the species' use of acorns in which it lays fertilized eggs in.

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Image Credit: Arch B. of Georgia.

TAXONOMY:

Kingdom: Animalia

Phylum: Arthropoda

Class: Insecta

Order: Coleoptera

Family: Curculionidae

Genus: Conotrachelus

Species: posticatus

The Acorn Weevil is a brown beetle with a long nose or 'snout' that is often compared to an elephant's trunk. It has mottled coloring where flecks of yellow and black mix with brown on the slightly ridged wing coverings. As its name suggests, this beetle has a close relationship with acorns, the seeds of oak trees. Each weevil egg is laid in a young acorn well before it hardens into the familiar brown nut that epitomizes autumn. Because the weevil attacks acorns and not the tree itself, it is not considered harmful to the tree's health. The weevil can reduce the number of viable acorns, thereby shrinking the number that can grow to become trees, but this is typically of low concern in areas where oaks are already established.©BeetleIdentification.org

The Acorn Weevil is also known by the name(s) of: Nut Weevil. The Acorn Weevil is typically 0.1 inches to 0.3 inches (4mm to 10mm) in size and has the following descriptors / identifiers: brown; black; fuzzy; flying; wings; hard; trunk; nose; snout.

Color Identification Guide

Various colors commonly associated with this beetle.

Brown

Black

Beetle Anatomy

Sighting Guide (Jan-Dec)

The general likelihood of encountering this beetle based on a given month of the year in the United States.

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Territorial Area Map (Visual Reference Guide)

The map below showcases (in blue) the states and territories of North America where the Acorn Weevil may be found (but is not limited to). This sort of data can be useful in seeing concentrations of a particular species over the continent as well as revealing possible migratory patterns over a species' given lifespan. Some species are naturally confined by environment, weather, mating habits, food resources and the like while others see widespread expansion across most, or all, of North America.

Alaska

Hawaii

Prince Edward Is.

Canadian territory of British Columbia graphic

Canadian territory of New Brunswick graphic

Canadian territory of Newfoundland and Labrador graphic

Canadian territory of Saskatchewan graphic

Contiguous United States shape map layer graphic

Newfoundland and Labrador

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