Euwallacea fornicatus, also known as tea shot-hole borer, or polyphagous shot-hole borer (PSHB) is a species complex consisting of multiple cryptic species of ambrosia beetles known as an invasive species in California, Israel, South Africa, and Australia. The species has also been unintentionally introduced into exotic greenhouses in several European countries.

See Wallacea, region of Indonesian islands named after the naturalist Alfred Russel Wallace.^[vague]

Common names of the species include tea shot-hole borer and polyphagous shot-hole borer (PSHB).

The tea shot-hole borer has been known to cause devastating damage to tea (Camellia sinensis) in at least ten countries, including India and Sri Lanka where it is a major economic pest.

Since 2007, specimens of E. fornicatus have been documented in Florida on avocado trees. However, it is not considered a health threat because no disease is expressed.

In 2009, specimens matching the description for E. fornicatus were introduced into Israel, where they were documented as vectors of a new fungal plant pathogen in avocado trees. In 2012, similar fungal disease was recorded in avocado trees in California (CA).

The species has also been unintentionally introduced into exotic greenhouses in several European countries.

It was found in South Africa early in 2017.