Canthydrus Sharp 1880-1882:269

Suphisellus was created by Crotch (1873:397), but his name did not see general usage until nearly half a century later. In discussing the group, Sharp (1880-1882:269) commented that Crotch had "suggested for it the name of Suphisellus, but not in a formal manner. He, therefore, proposed the new name Canthydrus. It wasn't until Zimmermann (1921:187) that Suphisellus re-appeared, and then in a problematic way (see Suphisellus). Zimmermann restricted Canthydrus to Old World species, except for Canthydrus buqueti LaPorte and two species he was about to describe, all from South America.

Canthydrus contains approximately 60 species, mostly from Africa and the Indo-Sino-Malasian region. Two species are known from Australia and nearby islands. Presently, four species of Canthydrus are recognized from the New World, but they are poorly known and may represent a distinct genus. Leech (1970) and Young (1979) both imply dissatisfaction with the application of Canthydrus to the neotropical fauna.

Checklist of Canthydrus

Key to species of Canthydrus

Literature Cited

Aube, C.

• 1838. Species general des Coleopteres. VI. Species general des Hydrocanthares et Gyriniens, par le docteur Ch. Aube; pour faire suite au species general des Coleopteres de la collection de M. Le Comte Dejean. Mequignon-Marvis pere et fils, Paris. xvi + 804 pp.

• 1873. Revision of the Dytiscidae of the United States. Trans. Amer. Entomol. Soc. 4:383-424.

• 1946. Genotypes des Dytiscoidea et des Gyrinoidea. Rev. Francaise d'Entomol. 13:112-118.

• 1959. Revision des Hydrocanthares d'Afrique (Coleoptera Dytiscoidea), Part 2. Ann. Mus. Congo Belgique (ser 8) Sci. Zool. 78:317-648.

• 1970. Copelatus glyphicus (Say) and Suphisellus bicolor (Say), water beetles new to California and presumably introduced (Coleoptera: Dytiscidae and Noteridae). Proc. California Acad. Sci. 37:237-247.

• 1880-1882. On aquatic carnivorous Coleoptera or Dytiscidae. Sci. Trans. Royal Dublin Soc. 2(new series), part 2:179-1003 + plates vii-xviii.

• 1968. Contribution to the study of aquatic beetles (Coleoptera). 2. A review of the subfamilies Noterinae, Laccophilinae, Dytiscinae and Hydroporinae (in part) from India. Orient. Insects 2:221-341.

• 1979. Water beetles of the genus Suphisellus Crotch in the Americas north of Colombia (Coleoptera: Noteridae). Southwest. Nat. 24(3):409-429.

• 1921. Beitrage zur Kenntnis der sudamerikanischen Schwimmkaferfauna nebst 41 Neubeschreibungen. Arch. Naturgeschichte 87(3):181-206.