Atrichonotus convexifrons (Hustache)
Geographic distribution
An occasional minor pest
  • Argentina
    • Buenos Aires
    • Chaco
    • La Pampa
Other distribution
  • Floresianus (Floresianellus) convexifrons Hustache 1939: 41
  • Atrichonotus convexifrons : Lanteri & O’Brien 1990: 707
Atrichonotus Buchanan was revised by Lanteri & O'Brien (1990) and currently includes six small species native to South America, one of them, A. pacificus Kuschel, endemic to Chile.

A. convexifrons is distinguished from other species of this genus by a typical color pattern of brown scales and the presence of long, erect setae on the odd-numbered intervals of the elytra. It is flightless and the absence of males in its populations suggests that reproduces by parthenogenesis (Lanteri & Normark 1995).

Secale cereale (L.) M Bieb. (Poaceae) (Lanteri et al. 2002a).

Mainly associated with gramineous plants of the Pampean biogeographic province.
  • HUSTACHE A. 1939. Curculionides nouveaux de l'Argentine et autres régions Sud-Américaines. Anales de la Sociedad Científica Argentina 128: 38-64, 99-124, illus.
  • LANTERI A.A. & O’BRIEN C.W. 1990. Taxonomic revision and cladistic analysis of Atrichonotus Buchanan (Coleoptera: Curculionidae). Transactions of the American Entomological Society 116(3): 697-725.
  • LANTERI A.A. & NORMARK B.B. 1995. Parthenogenesis in the tribe Naupactini (Coleoptera: Curculionidae). Annals of the Entomological Society of America 88(6): 722-731.
  • LANTERI A.A. ET AL. 2002a. Gorgojos de la Argentina y sus plantas huéspedes. Tomo I: Apionidae y Curculionidae. Publicación Especial de la Sociedad Entomológica Argentina Nº 1, 98 pp.
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