Euwallacea perbrevis
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Author(s): Ken Walker, Museum Victoria
Source: PaDIL
Euwallacea perbrevis (Schedl, 1951) - (tea shot hole borer)
This species of ambrosia beetle is polyphagous and infests crops and other plants in parts of Asia and the Pacific, as well as in other regions. Its original distribution records range from the Philippines (type location), Japan and southern China in the east, to India and Sri Lanka in the west, and to Indonesia, Australia and parts of the Pacific in the south. It is invasive in Hawaii and in parts of south-eastern North America as well as in Central America. It belongs to the Euwallacea fornicatus species complex which includes several morphologically very similar species. Each member of the complex apparently carries a different species of symbiotic fungus from the genus Fusarium. Like other members of this complex, the beetle/fungus combination can be very destructive on tropical crops. In particular E. perbrevis has been recorded to infest avocado, mango, breadfruit, tea, citrus and cacao.
The adults are dark brown to black and can be distinguished in most cases from other species of the E. fornicatus complex by the following combination of characters: The elytra length is shorter the 1.55 mm, but the pronotum length is longer than 1.05 mm. For a definite identification, the DNA structure needs to be determined.
Synonyms:
Xyleborus perbrevis
For a taxonomic review of this species see Smith et al. (2019).
