Aramigus tessellatus (Say)
 
Geographic distribution
Distribution
An occasional minor pest
  • Argentina
    • Buenos Aires
    • Chaco
    • Córdoba
    • Corrientes
    • Entre Ríos
    • Jujuy
    • La Pampa
    • Misiones
    • Neuquén
    • Río Negro
    • Santa Fe
    • Santiago del Estero
    • Tucumán
  • Uruguay
Other distribution
BRAZIL
Rio Grande do Sul, Santa Catarina, São Paulo

URUGUAY
Lavalleja, Maldonado, Paysandú

Introduced in Chile, México and USA.

 
  • Liparus tessellatus Say 1824: 318
  • Sitona durius Germar 1824: 417
  • Aramigus tessellatus var. pallidus Horn 1876: 94
  • Eurymetopus griseus Voss 1934: 63
  • Eurymetopus chevrolati Voss 1934: 64
  • Pantomorus biseriatus Hustache 1947: 117
  • Asynonychus viridipallens Hustache 1947: 137
  • Asynonychus santafecinus Lanteri in Lanteri et al. 1987: 181
Aramigus tessellatus is a complex species with several lineages or morphotypes mainly differentiated by morphometric characters of pronotum, elytra, spermatheca and spermathecal duct (Lanteri & Díaz 1994). These morphotypes were also recognized based on molecular data of the gene COI (Normark & Lanteri 1998).

The most common morphotypes are tessellatus and pallidus, both introduced in USA. The most distinct morphotypes are viridipallens (iridescent green, with very slender and elongate elytra); and biseriatus (with lines of long erect setae along the elytral intervals). All the morphotypes (except biseriatus) are sympatric in the sierras of Córdoba and Tandil (Buenos Aires), delta of Paraná river and banks of La Plata river. A key to species of Aramigus and morphotypes of A. tessellatus is included in Lanteri & Díaz (1994).

Males are unknown or scarce and the species reproduces by parthenogenesis in most of its range (Lanteri & Normark 1995). Morphotypes pallidus and tessellatus are infected with the bacterium Wolbachia(Rodriguero et al. 2010a). The first instar larva of A. tessellatus was described by Marvaldi & Loiácono (1994), and eggs and oviposition habits have been studied by Marvaldi (1999).

A niche modeling analysis suggests that South Africa, western Australia and China are suitable for the establishment of this species, besides the countries in which it was introduced (Lanteri et al. 2013b).
It causes damage on Medicago sativa L. (Fabaceae) in Argentina, Chile and Uruguay (Alzugaray et al. 1998, Lanteri 1994); Helianthus annuus L. (Asteraceae), Solanum tuberosum L. (Solanaceae), Triticum aestivum L, Avena sativa L. and Hordeum vulgare L. (Poaceae) in Argentina (Lanteri et al. 2002a); Rubus idaeus L., Prunus avium L. Malus domestica Borkh (Rosaceae), and Lupinus sp (Fabaceae) in Chile (Elgueta 1993).

It is common in pastures, shrubs and crops of the Pampean biogeographic province.
  • GERMAR E.F. 1824. Insectorum species novae aut minus cognitae, descriptionibus illustratae. Hendel and Sons, Halae. Vol. 1, Coleoptera, XXIV + 624 pp., illus. [Curc. pp. 185-461, pls. I-II].
  • SAY T. 1824. Descriptions of Coleopterous insects collected in the late expedition to the Rocky Mountains, performed by arder of Mr. Calhoun, Secretary of War, under the command of Majar Long. Journal of the Academy of Natural Sciences of Philadelphia 3(2): 298-331 [Curc. pp 308-319].
  • HORN G.H. 1876. In: LeConte J.L., Horn G.H. (eds). The Rhynchophora of America, north of Mexico. Proceedings of the American Philosophical Society 15(96): 1-455 [Horn, pp 13-112].
  • VOSS E. 1934. Einige unbeschriebene Neotropische Curculioniden nebst einer Vorstudie zur Tribus Promecopini (Col. Curc.). 48. Beitrag zur Kenntnis der Curculioniden (Neotrop. Curc. II). Sborník Entomologického Oddeleni Národního Musea v Praze 12: 63-104.
  • 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. ET AL. 1987. Aplicación de técnicas numéricas al estudio sistemático del grupo de Asynonychus durius (Germar) (Coleoptera: Curculionidae). Entomologischen Arbeiten aus dem Museum G. Frey 35-36: 171-198.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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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