Aramigus conirostris (Hustache)
Geographic distribution
An occasional minor pest
  • Argentina
    • Buenos Aires
    • Chaco
    • Corrientes
    • Entre Ríos
    • Misiones
    • Salta
    • Santa Fe
    • Santiago del Estero
  • Uruguay
Other distribution
Santa Catarina, Rio Grande do Sul

Maldonado, Río Negro

  • Pantomorus conirostris Hustache 1947: 117
  • Aramigus conirostris: Lanteri & Díaz 1994: 122
Aramigus Horn includes several species native to South America. It was revised by Lanteri & Díaz (1994) and was analyzed with molecular data by Normark & Lanteri (1998).

Aramigus conirostris is distinguished by the strongly convex eyes, very conical rostrum, vestigial elytral humeri and integument completely covered with dense grey scales.

It is a flightless species, probably parthenogenetic (Lanteri & Normark 1995), polyploid (Normark 1996) and infected with the bacterium Wolbachia, probably involved in the origin of parthenogenesis in Naupactini (Rodriguero et al. 2010a).
A niche modeling analysis suggests that Florida and the coast of Mexican Gulf in USA, the prairies of China and eastern Australia are suitable for the establishment of this species (Lanteri et al. 2013b).
Medicago sativa L. (Fabaceae) (Lanteri 1994, Lanteri et al. 2002a).

It is mainly associated with vegetation of the Paranaense forest and the gallery forests of the Paraná and Uruguay rivers, down to La Plata river, in Buenos Aires province.
  • HUSTACHE A. 1947. Naupactini de l’Argentine et des régions limitrophes (Col. Curculion.). Revista de la Sociedad Entomológica Argentina 13(1-5): 3-146.
  • LANTERI A.A. 1994. Bases para el control integrado de los gorgojos de la alfalfa. De la Campana Ediciones, La Plata, 119 pp.
  • LANTERI A.A. & DÍAZ N.B. 1994. Systematic study and cladistic analysis of the genus Aramigus Horn (Coleoptera: Curculionidae). Transactions of the American Entomological Society. 120(2): 113-144.
  • 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.
  • NORMARK B.B. 1996. Polyploidy of parthenogenetic Aramigus tessellatus (Coleoptera: Curculionidae). The Coleopterists Bulletin 50: 73–79.
  • NORMARK B.B & LANTERI A.A. 1998. Incongruence between morphological and mitochondrial- DNA characters suggests hybrid origins of parthenogenetic weevil lineages (genus Aramigus). Systematic Biology 47(3): 475-494.
  • 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.
  • RODRIGUERO M.S. ET AL. 2010a. Wolbachia infection in the tribe Naupactini: association between thelytokous parthenogenesis and infection status. Insect Molecular Biology 19(5): 599-705.
  • LANTERI A.A. ET AL. 2013b. Potential geographic distributions and successful invasions of parthenogenetic broad-nosed weevils (Coleoptera: Curculionidae) native to South America. Environmental Entomology 42(4): 677-686.
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