Biology:Chasmogenus abnormalis

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Short description: Species of beetle


Chasmogenus abnormalis
Chasmogenus abnormalis (Sharp, 1890) (15354136429).png
Scientific classification
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Species:
C. abnormalis
Binomial name
Chasmogenus abnormalis
(Sharp, 1890)
Synonyms
  • Philydrus abnormalis Sharp, 1890
  • Helochares regimbarti Knisch, 1924
  • Philhydrus nigritulus Régimbart, 1903
  • Phylhydrus ferrugatus Régimbart, 1903

Chasmogenus abnormalis, is a species of water scavenger beetle found in Cambodia, Sri Lanka, Taiwan, Thailand, Vietnam, Ryukyu Islands and Indonesia: Borneo, Java, Sulawesi, Sumatra.[1][2][3][4][5]

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.[6]

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. http://biotaxa.org/Zootaxa/article/view/zootaxa.4144.2.12. 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. PMID 29670421. PMC 5904443. https://zookeys.pensoft.net/articles.php?id=21711. Retrieved 2021-07-30. 
  3. "Exploring morphological characters associated with habitat transitions in water scavenger beetles (Coleoptera: Hydrophilidae: Acidocerinae)". https://www.researchgate.net/publication/305636879. 
  4. "New Data on the Distribution of Old World Hydrophilidae (Coleoptera)". http://rep.barsu.by/bitstream/handle/data/1424/New%20data%20on%20the%20distribution%20of%20Old%20World%20Hydrophilidae%20(Coleoptera).pdf?sequence=1. 
  5. "Chasmogenus abnormalis (Sharp, 1890)" (in en). https://www.gbif.org/species/6132465. 
  6. 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. PMID 29670421. PMC 5904443. https://zookeys.pensoft.net/articles.php?id=21711. Retrieved 2021-07-30. 

Wikidata ☰ Q101133045 entry