Berosus pulchellus

Berosus pulchellus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Staphyliniformia
Family:	Hydrophilidae
Subfamily:	Hydrophilinae
Tribe:	Berosini
Genus:	Berosus
Species:	B. pulchellus
Binomial name
Berosus pulchellus W.S. MacLeay, 1825
Synonyms
Berosus decrescensWalker, 1859 Berosus pubescensMulsant & Rey, 1858 Berosus pulchellusW.S.MacLeay, 1825 Berosus vestitusSharp, 1884

Berosus pulchellus, is a species of water scavenger beetle that is found in Oriental, Australasian, Afrotropical and Palaearctic regional countries such as India, Sri Lanka, Hong Kong, Japan, Iran, Cambodia and Australia. ^{[1] [2] [3] [4] [5] [6] [7]}

Description

This slender, medium-sized aquatic beetle has an ovate body, with an average length of about 3.7 mm. ^[8] The outline of the body is not interrupted between pronotum and elytra. The head is fully metallic while the pronotum is partially metallic. The pronotum consists of double punctures whereas the posterior angle is obtuse and well-defined. The elytra possess 10 rows of punctured striae. Middle and hind tibia are long with swimming hair. Male beetles have 4-segmented fore tarsi. ^[9] There is no posteriorly elevated mesosternal carina and lateral margins of the metasternal process are evenly confluent. ^[10]

References

1. Australia, Atlas of Living. "Species: Berosus (Berosus) pulchellus". bie.ala.org.au. Retrieved 2021-07-29.
2. "Berosus pulchellus". www.mindat.org. Retrieved 2021-07-29.
3. "IRMNG - Berosus pulchellus W.S. Macleay, 1825". www.irmng.org. Retrieved 2021-07-29.
4. "Berosus pulchellus W.S.MacLeay, 1825". www.gbif.org. Retrieved 2021-07-29.
5. "Genus Berosus Leach, 1817 in southern Iran (Coleoptera: Hydrophilidae)" (PDF). Journal of Entomology and Zoology Studies 2016; 4(6): 784-787. Retrieved 2021-07-27.
6. "Aquatic beetles of Thar Desert". www.cabi.org. 1996. Retrieved 2021-07-29.
7. "Aquatic Polyphaga (Insecta: Coleoptera) from Kampong Speu Province, Cambodia". Biodiversity and taxonomy of aquatic ColeopteraBIO-PHIL - Biodiversity Teaching in a Philippine-Cambodian-German Network. Retrieved 2021-07-27.
8. "Berosus pulchellus". www.kaefer-der-welt.de. Retrieved 2021-07-29.
9. "Freshwater Macroinvertebrates in Hong Kong: Berosus pulchellus". www.biosch.hku.hk. Retrieved 2021-07-29.
10. "Description of two new Berosus SHARP from Southeast Asia, with faunistic notes on Berosus nigropictus RÉGIMBART (Coleoptera: Hydrophilidae)" (PDF). Koleopterologische Rundschau 67 195 - 200 Wien, Juni 1997. Retrieved 2021-07-27.