Cnestus gravidus explained

Cnestus gravidus is a species of weevil found in Bangladesh, Sri Lanka, India, Myanmar, Laos, Thailand, Vietnam and China.^{[1] [2]}

Description

Average body length is about 5.0 to 5.5 mm. Body with a bicolored pronotum where the apical half is black and basal half is orange. Procoxae is subcontiguous. Antennae with four funicle segments and obliquely truncate club. The first antennal segment forms a circular costa. Coarse median pair of asperities are found on the anterior margin of the pronotum. Protibiae consists with 7 socketed teeth.^[3] There is a mesonotal mycangial tuft found on the pronotal base. Elytral disc is short and elytral declivity is obliquely truncate. Elytral interstriae is granulate with a median row of long erect hairs.^[4]

Notes and References

1. Web site: SE Asian Ambrosia Beetle ID: Fact sheet . 2021-09-06 . idtools.org.
2. Beaver . R. A. . Sittichaya . W. . Liu . L-Y. . 2014-10-21 . A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Cnestus gravidus Blandford . Zootaxa . 3875 . 1–82 . 10.11646/zootaxa.3875.1.1 . 25544343 . Zenodo . 2021-09-06.
3. Phylogenetic revision of Xylosandrus Reitter (Coleoptera: Curculionidae: Scolytinae: Xyleborina) . Dole. Stephanie A.. Cognato. Anthony I.. 2022-09-10 . Proceedings of the California Academy of Sciences. 2010. 4. 61. 10. 451–545.
4. Smith . Sarah M. . Beaver . Roger A. . Cognato . Anthony I. . 2020-03-11 . A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China . 2021-09-06 . ZooKeys . 983 . 1–442 . en . 10.3897/zookeys.983.52630. 33244289 . 7655787 . free .