Atrichonotus taeniatulus (Berg)
Geographic distribution
An occasional minor pest
  • Argentina
    • Buenos Aires
    • Catamarca
    • Chaco
    • Córdoba
    • Formosa
    • La Pampa
    • Mendoza
    • Río Negro
    • Santiago del Estero
  • Uruguay
Other distribution
Artigas, Canelones, Montevideo, Paysandú

Introduced in Australia, Chile and USA
  • Naupactus taeniatulus Berg 1881: 61
  • Pantomorus taeniatulus : Buchanan 1939: 16
  • Pantomorus pictipennis Hustache 1947: 122
  • Artipus texanus Pierce 1911: 49
  • Atrichonotus taeniatulus : Kuschel 1958: 787
Atrichonotus taeniatulus is the type species of Atrichonotus. The revision and a key to species of this genus was published by Lanteri & O'Brien (1990).

Atrichonotus taeniatulus is similar to A. obscurus in body shape and color pattern, but the scales that covered the integument are round-oval instead of lanceolate, and the elytra have a dark-brown stripe along the suture. It is flightless, and the absence of males (Lanteri & Normark 1995) and the infection with the bacterium Wolbachia suggest that is probably parthenogenetic (Rodriguero et al. 2010a).

This species shows two distinct morphotypes, in the typical one, called taeniatulus the vestiture is grey with longitudinal dark vittae along suture and flanks of elytra; in the pictipennis morphotype the vestiture is variegate grey and brown, without vittae, and elytra are more convex.

The first instar and mature larvae have been described by Marvaldi & Loiácono (1994) and Marvaldi (1998); eggs and type of oviposition have been studied by Marvaldi (1999).
A niche modeling analysis predicts that South Africa is suitable for its establishment (Lanteri et al. 2013b).
Pest of alfalfa, Medicago sativa L. (Fabaceae) in Argentina, Chile, Uruguay and Australia (Alzugaray et al. 1998, Chadwick 1965, Lanteri 1994). Also associated with Helianthus annuus L. (Asteraceae) and Prunus avium L. (Rosaceae) in Argentina (Lanteri et al. 2002a); Lotus, Trifolium repens L. and Trifolium pratense L. (Fabaceae) in Uruguay and Australia (Alzugaray et al. 1998, Chadwick 1965); Capsicum annuum L. (Solanaceae), Phaseolus vulgaris L. (Fabaceae) and Cucumis melo L. (Cucurbitacea) in Chile (Elgueta 1993); several ornamental plants, e.g. Rosa sp, Photinia sp (Rosaceae), Dahlia sp (Asteraceae), Hibiscus sp (Malvaceae), Eucalyptus sp (Myrtaceae), and roots of grasses (Chadwick 1965).

Mainly associated with native vegetation and crops of the Pampean biogeographic province.
  • BERG F.G.C. 1881. Entomologisches aus dem lndianergebiet der Pampa. Stettiner Entomologische Zeitung 42(1-3): 36-72. [Curc. pp. 60-62].
  • PIERCE W.D. 1911. In: Mitchell J.D., Pierce W.D. 1911.The weevils of Victoria county, Texas. Proceeding of the Entomological Society of Washington 13(1): 45-62.
  • BUCHANAN L.L. 1939. The species of Pantomorus of America north of Mexico. United States Department of Agriculture, Miscellaneous Publications 341: 1-39, illus.
  • HUSTACHE A. 1947. Naupactini de l’Argentine et des régions limitrophes (Col. Curculion.). Revista de la Sociedad Entomológica Argentina 13(1-5): 3-146.
  • KUSCHEL G. 1958. Neotropische Rüsselkäfer aus dem Museum G. Frey (Col. Curcul.). Entomologischen Arbeiten aus dem Museum G Frey 9(3): 750-798, illus.
  • CHADWICK C.E. 1965. A review of fuller's rose weevil (Pantomorus cervinus (Boh.) (Coleoptera, Curculionidae). Journal of the Entomological Society of Australia (N. S. W.) 2: 10-20.
  • 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.
  • ELGUETA M. 1993. Las especies de Curculionoidea (Insecta: Coleoptera) de interés agrícola en Chile. Publicación Ocasional nro. 48, Museo Nacional de Historia Natural, Santiago, Chile, 72 pp.
  • LANTERI A.A. 1994. Bases para el control integrado de los gorgojos de la alfalfa. De la Campana Ediciones, La Plata, 119 pp.
  • MARVALDI A.E. & LOIÁCONO M.S. 1994. First instar larvae in the tribe Naupactini (Coleoptera, Curculionidae). Revista Brasileira de Entomologia 38(2): 453-466.
  • 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.
  • ALZUGARAY R. ET AL. 1998. Situación de los insectos del suelo en Uruguay. In: Morón, M.A., Aragón A. (eds.). Avances en el estudio de la diversidad, importancia y manejo de los Coleópteros edafícolas americanos. Publicación Especial, Universidad Nacional Autónoma de Puebla, Sociedad Mexicana de Entomología, pp. 151-164.
  • MARVALDI A.E. 1998. Larvae of South American Entimini (Coleoptera: Curculionidae) and phylogenetic implications of certain characters. Revista Chilena de Entomología 25: 21-44.
  • MARVALDI A.E. 1999. Eggs and oviposition habits in Entimini (Coleoptera: Curculionidae). The Coleopterists Bulletin 53(2): 115-126.
  • 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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