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Crephelochares abnormalis

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(Redirected from Chasmogenus abnormalis) Species of beetle

Crephelochares abnormalis
Dorsal view of Crephelochares abnormalis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Superfamily: Hydrophiloidea
Family: Hydrophilidae
Subfamily: Acidocerinae
Genus: Crephelochares
Species: C. abnormalis
Binomial name
Crephelochares abnormalis
(Sharp, 1890)
Synonyms
  • Philydrus abnormalis Sharp, 1890
  • Helochares regimbarti Knisch, 1924
  • Philhydrus nigritulus Régimbart, 1903
  • Phylhydrus ferrugatus Régimbart, 1903
  • Chasmogenus abnormalis (Sharp, 1890)

Crephelochares abnormalis, is a species of water scavenger beetle found in Cambodia, Sri Lanka, Taiwan, Thailand, Vietnam, Ryukyu Islands and Indonesia: Borneo, Java, Sulawesi, Sumatra.

Taxonomy

The species was originally described by David Sharp in 1890 under the genus Philydrus.

It was transferred to the genus Chasmogenus when Chasmogenus was considered a subgenus of the genus Helochares and a synonym of Crephelochares. Additional details about the taxonomic history of Chasmogenus and Crephelochares can be found in Girón and Short (2021).

Description

The species is closely related to Chasmogenus orbus, only can be separated by features of the aedeagus: parameres without or with small subapical tooth, where the apex is broadened inwards. Median lobe gradually becomes narrow from apical quarter to apex and widely truncate apically.

References

  1. Devi, M. Bhubaneshwari; Devi, O. Sandhyarani; Fikáček, Martin; Minoshima, Yûsuke N.; Wanghengbam, Leiphon (2016-07-27). "Redescription and lectotype designation of Chasmogenus abnormalis (Sharp), with notes on its distribution". Zootaxa. 4144 (2): 296–300. doi:10.11646/zootaxa.4144.2.12. PMID 27470857. Retrieved 2021-07-30.
  2. Jia, Fenglong; Tang, Yu-dan (2018-02-19). "A faunistic study of genus Chasmogenus Sharp, 1882 of China (Coleoptera, Hydrophilidae)". ZooKeys (738): 59–66. doi:10.3897/zookeys.738.21711. PMC 5904443. PMID 29670421. Retrieved 2021-07-30.
  3. Girón, J. C.; Short, A. E. Z. (2016). "Exploring morphological characters associated with habitat transitions in water scavenger beetles (Coleoptera: Hydrophilidae: Acidocerinae)". researchgate.net. Retrieved 2021-07-30.
  4. Hebauer, F.; Ryndevich, S. K. (2005). "New data on the distribution of Old World Hydrophilidae (Coleoptera)" (PDF). Acta Coleopterologica. 21 (1): 43–51.
  5. "Chasmogenus abnormalis (Sharp, 1890)". www.gbif.org. Retrieved 2021-07-30.
  6. Sharp, D. (1890). "On some aquatic Coleoptera from Ceylon". Transactions of the Entomological Society of London. 1890 (2): 339–359. doi:10.1111/j.1365-2311.1890.tb03026.x.
  7. Girón, Jennifer C.; Short, Andrew Edward Z. (2021-06-18). "The Acidocerinae (Coleoptera, Hydrophilidae): taxonomy, classification, and catalog of species". ZooKeys (1045): 1–236. doi:10.3897/zookeys.1045.63810. ISSN 1313-2970. PMC 8233300. PMID 34228772.
  8. Jia, Fenglong; Tang, Yu-dan (2018-02-19). "A faunistic study of genus Chasmogenus Sharp, 1882 of China (Coleoptera, Hydrophilidae)". ZooKeys (738): 59–66. doi:10.3897/zookeys.738.21711. PMC 5904443. PMID 29670421. Retrieved 2021-07-30.
Taxon identifiers
Chasmogenus abnormalis


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