Ilybius

Ilybius ater, photographed by N. Sloth.

Belongs within: Agabinae.

Ilybius is a genus of diving beetles in the tribe Agabini. Females of species of Ilybius have hydroporine-type genitalia and a lateral or dorsolateral carina on the gonocoxa. This carina is dentate in species related to Ilybius subaeneus; species in which the carina is not dentate were previously classified in the related genus Agabus (Miller 2001).

<==Ilybius
    |  i. s.: I. chinensis Csiki 1901 C01
    |         I. fenestratus C01
    |         I. fuliginosus D56
    |--I. gagates [=Agabus gagates] M01
    `--+--I. aciculatus M01
       `--+--I. apicalis M01
          |--+--I. angustior M01
          |  `--I. picipes M01
          |--+--I. confertus M01
          |  |--I. erichsoni M01
          |  |--I. hypomelas M01
          |  `--I. subtilis M01
          `--+--I. ater M01
             |--I. biguttulus M01
             |--I. confusus M01
             |--I. fraterculus M01
             |--I. meridionalis M01
             |--I. oblitus M01
             |--I. obscurus M01
             |--I. obtusatus M01
             |--I. quadrimaculatus M01
             `--I. subaeneus M01

*Type species of generic name indicated

REFERENCES

Csiki, E. 1901. Bogarak [Coleopteren]. In: Horváth, G. (ed.) Zichy Jenő Gróf Harmadik Ázsiai Utazása [Dritte Asiatische Forschungsreise des Grafen Eugen Zichy] vol. 2. Zichy Jenő Gróf Harmadik Ázsiai Utazásának Állattani Eredményei [Zoologische Ergebnisse der Dritten Asiatischen Forschungsreise des Grafen Eugen Zichy] pp. 75–120. Victor Hornyánszky: Budapest, and Karl W. Hierseman: Leipzig.

Dawes, B. 1956. The Trematoda with special reference to British and other European forms. University Press: Cambridge.

[M01] Miller, K. B. 2001. On the phylogeny of the Dytiscidae (Insecta: Coleoptera) with emphasis on the morphology of the female reproductive system. Insect Systematics and Evolution 32: 45–92.

Last updated: 25 May 2017.