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Xylosandrus discolor, is a species of weevil found in Australia, Micronesia, Myanmar, China, India, Sri Lanka, Indonesia, Malaysia, Taiwan and Thailand.

Description

Body length of the female ranges from 1.8 to 2.0 mm. Body bicolored. Pronotum light brown. Elytra dark brown. Antennae and legs are yellowish brown. Antennea with 5 funicular segments and obliquely truncate club. Pronotal vestiture of erect and hairy setae. Pronotal base covered with a dense patch of short erect setae. Pronotal disc is densely asperate-punctate. Pronotum consists with lateral costa and carina. Protibiae with 4 to 5 socketed teeth, whereas mesotibiae and metatibiae with 8 to 9 socketed teeth. In elytra, discal striae and interstriae multiseriate is punctate. Diclivital elytral face is steep and abruptly separated from disc. Elytral striae coarsely granulate with appressed hairy setae.

A polyphagous species, it is found in many plants. It is primarily a shoot borer.

Host plants

• Ailanthus altissima
• Albizia
• Allamanda cathartica
• Bauhinia variegata
• Camellia sinensis
• Cassia multijuga
• Castanopsis fargesii
• Cedrela toona
• Chloroxylon swietenia
• Coffea arabica
• Coffea robusta
• Hevea brasiliensis
• Juglans nigra
• Machilus indica
• Mangifera indica
• Persea americana
• Pterospermum acerifolium
• Rhus chinensis
• Sophora japonica
• Swietenia mahagoni
• Tephrosia candida
• Terminalia myriocarpa
• Terminalia procera
• Theobroma cacao
• Vitis vinifera

References

1. Dole, Stephanie A.; Beaver, Roger A. (December 2008). "A Review of the Australian Species of Xylosandrus Reitter (Coleoptera: Curculionidae: Scolytinae)". The Coleopterists Bulletin. 62 (4): 481–492. doi:10.1649/1108.1. S2CID 86161253. Retrieved 2021-09-05.
2. Dole, Stephanie A.; Jordal, Bjarte H.; Cognato, Anthony I. (2010-03-01). "Polyphyly of Xylosandrus Reitter inferred from nuclear and mitochondrial genes (Coleoptera: Curculionidae: Scolytinae)". Molecular Phylogenetics and Evolution. 54 (3): 773–782. doi:10.1016/j.ympev.2009.11.011. PMID 19925873. Retrieved 2021-09-05.
3. "Bark and Ambrosia Beetles of, Xylosandrus discolor (Blandford 1898)". www.barkbeetles.info. Retrieved 2021-09-05.
4. ^ "Phylogenetic revision of Xylosandrus Reitter (Coleoptera: Curculionidae: Scolytinae: Xyleborina)". Proceedings of the California Academy of Sciences Volume: 61 :451-545. Retrieved 2021-09-05.
5. "Xylosandrus discolor ((Blandford, 1898)). [pest/pathogen]". www.cabdirect.org. Retrieved 2021-09-05.
6. "Knowledge Bank: Xylosandrus discolor". Plantwiseplus Knowledge Bank. Species Pages. 22 November 2019. doi:10.1079/pwkb.species.57236. Retrieved 2021-09-05.

• Curculionidae
• Insects of Sri Lanka
• Beetles described in 1898