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Hydrovatus seminarius
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Adephaga
Family:	Dytiscidae
Genus:	Hydrovatus
Species:	H. seminarius
Binomial name
Hydrovatus seminarius Motschulsky, 1859
Synonyms
Hydrovatus fusculus Sharp, 1882 Hydrovatus matsuii Nakane, 1990 Hydrovatus tinctus Sharp, 1882 Hydrovatus (Vathydrus) fusculus Sharp, 1882

Hydrovatus seminarius, is a species of predaceous diving beetle found in India, Bangladesh, Bhutan, Myanmar, Nepal, Pakistan, Sri Lanka, China, Indonesia, Japan, Laos, Malaysia, Taiwan, Thailand, Vietnam and Australian region.

This large species has a typical length of about 2.4 to 2.8 mm. Head between eyes narrowly margined. In male genitalia, the apical part of penis is evenly curved ventrally. Male stridulation apparatus on metacoxal plates along suture close to metathorax.

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 seminarius Motschulsky, 1859". www.gbif.org. Retrieved 2021-08-10.
3. "Hydrovatus seminarius". www.kaefer-der-welt.de. Retrieved 2021-08-10.
4. "A New Species of the Genus Hydrovatus (Coleoptera, Dytiscidae) from Iriomote Island, Southwestern Japan, with a Key to the Japanese Species". researchgate. Retrieved 2021-08-07.
5. "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.

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