Hydrovatus subtilis

Species of beetle

Hydrovatus subtilis, is a species of predaceous diving beetle found in India, Andaman & Nicobar Islands, Sri Lanka, Indonesia, Japan, Laos, Malaysia, and Thailand.^[1][2][3][4]

Body larger with a typical length of about 2.4 to 2.8 mm. Male antenna with joints 7 to 8 broader than adjacent joints. Head between eyes is not margined. Male with stridulation apparatus on metacoxal plates along suture close to metathorax.^[5]

References

1. "Catalogue of the diving beetles of India and adjacent countries (Coleoptera: Dytiscidae)". Skörvnöpparn, Umeå Supplement 3, 2012: 1-77. Retrieved 2021-08-07.
2. "Hydrovatus subtilis Sharp, 1882". www.gbif.org. Retrieved 2021-08-10.
3. Lee, Dae-Hyun; Ahn, Kee-Jeong (2016). "Taxonomy of Korean Hydrovatus Motschulsky (Coleoptera: Dytiscidae)". Korean Journal of Applied Entomology: 343–346. doi:10.5656/KSAE.2016.08.0.040. Retrieved 2021-08-07.
4. "A Distributional Review of the Genus Hydrovatus (Coleoptera: Dytiscidae) from the Ryukyus, Southwestern Japan". Japanese Journal of Systematic Entomology, 26 (1): 111–118. June 30, 2020. Retrieved 2021-08-07.
5. "A New Species of the Genus Hydrovatus (Coleoptera, Dytiscidae) from Iriomote Island, Southwestern Japan, with a Key to the Japanese Species". Elytra, Tokyo, New Series, 7 (1): 5–13. Retrieved 2021-08-07.