Xylosandrus discolor explained

Xylosandrus discolor, is a species of weevil found in Australia, Micronesia, Myanmar, China, India, Sri Lanka, Indonesia, Malaysia, Taiwan and Thailand.^{[1] [2] [3]}

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.^[4]

A polyphagous species, it is found in many plants.^[5] It is primarily a shoot borer.^[6]

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

Notes and References

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