Host Range Studies with
Bagous affinis
(Coleoptera: Curculionidae), an Indian Weevil that Feeds on Hydrilla Tubers

Buckingham, Gary R.; Bennett, Christine A.

doi:10.1093/ee/27.2.469

Cited by 15 publications

(27 citation statements)

References 7 publications

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“…In the U.S.A, the Indian species B. affinis Hustache, 1926 and the Australian species B. hydrillae O'Brien, 1992 were introduced as biological control agents of Hydrilla verticillata (L. f.) Royle (Buckingham 1988;Buckingham & Bennett 1998;O'Brien & Pajni 1989;Wheeler & Center 1997;Center et al 2013), and some Palaearctic species (B. collignensis (Herbst, 1797), B. longitarsis Thomson, 1868) and Oriental species (B. geniculatodes O'Brien, 1995(B. geniculatodes O'Brien, , B. vicinus1992Askevold et al 1994;. From a comprehensive morphological study, especially of the complex structure of the male genitalia, concluded that Bagoini, as then delimited, constituted a monophyletic group composed of about 50 monophyletic species groups.…”

Section: Introductionmentioning

confidence: 99%

A phylogenetic analysis of the aquatic weevil tribe Bagoini (Coleoptera: Curculionidae) based on morphological characters of adults

Caldara

O’Brien²,

Meregalli

2017

Zootaxa

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Relationships of almost all known Bagoini from the world (Holarctic, Afrotropical and Oriental Regions, and Australia) were analyzed using morphological characters. To define relationships with other Curculionidae and among the species within the tribe, 119 characters were used: 64 of these are genital structures, mainly from the males, where the penis and endophallus are endowed with many complex structures that are apparently unique in Curculionidae. In general, the genital characters appear conservative and tend to resolve relationship at more terminal levels of phylogeny. On the contrary, many external characters are strongly homoplastic, probably secondary modifications associated with their aquatic lifestyle, but which tended to resolve relationships among the lower nodes of the tree. On the basis of this analysis, we confirmed the monophyly of the tribe. Our phylogenetic reconstruction suggests a new taxonomic ordering of the tribe in genera and subgenera. The following taxa, previously considered as synonyms of Bagous Germar, 1817, are resurrected as valid taxa: Hydronomus Schoenherr, 1825 and Memptorrhynchus Iablokoff-Khnzorian, 1960 as genera; Parabagous Schilsky, 1907, Hydronoplus Fairmaire, 1898 (= Pseudobagous Sharp, 1917 syn. n.) (stat. n.) and Macropelmus Dejean, 1821 (= Pnigodes LeConte, 1876 syn. n.) (stat. n.) as subgenera. Azollaebagous gen. n. and Hydrillaebagous subgen. n. of Bagous are created. Among some genera, especially Bagous and its subgenera, we recognize a somewhat large number of species groups, distinguishable mainly by unique character states of the male genitalia. Monophyly of most of these appears well supported. Some of these groups are presently monotypic, but we ascertained that many of them have other representatives not yet described.

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Section: Introductionmentioning

confidence: 99%

A phylogenetic analysis of the aquatic weevil tribe Bagoini (Coleoptera: Curculionidae) based on morphological characters of adults

Caldara

O’Brien²,

Meregalli

2017

Zootaxa

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“…The Indian B. affinis and the Australian B. hydrillae were introduced in the USA as biocontrol agents of Hydrilla verticillata (Buckingham 1988;O'Brien & Pajni 1989;Wheeler & Center 1997Buckingham & Bennett 1998), and some Palaearctic (B. collignensis, B. longitarsis) and Oriental species (B. geniculatodes, B. vicinus) are under study as potential control agents of Myriophyllum spicatum (Cock et al 2008) in the USA. The Indian B. affinis and the Australian B. hydrillae were introduced in the USA as biocontrol agents of Hydrilla verticillata (Buckingham 1988;O'Brien & Pajni 1989;Wheeler & Center 1997Buckingham & Bennett 1998), and some Palaearctic (B. collignensis, B. longitarsis) and Oriental species (B. geniculatodes, B. vicinus) are under study as potential control agents of Myriophyllum spicatum (Cock et al 2008) in the USA.…”

Section: Brachycerinae Billberg 1820mentioning

confidence: 99%

3.7. Curculionidae Latreille, 1802

Oberprieler¹,

Caldara²,

Skuhrovec³

et al. 2014

Arthropoda: Insecta: Coleoptera

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“…Eggs: Eggs of Bagous species are usually white and the outer membrane or chorion is transparent (Buckingham and Bennett 1994). Eggs of Bagous hydrillae are oval and 0.52 mm long by 0.27 mm wide (Figure 2); they are laid by the female inside the hydrilla stem.…”

Section: Descriptionmentioning

confidence: 99%

Hydrilla Stem Weevil: Bagous hydrillae O’Brien

Weeks

Cuda

Grodowitz³

2014

EDIS

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Bagous hydrillae O’Brien is a semi-aquatic weevil that feeds on the aquatic invasive weed Hydrilla verticillata (L.f.) Royle. Larvae of the weevil mine hydrilla stems and the adults feed on the stems and submerged leaves. This weevil was discovered during overseas surveys for biological control agents for hydrilla during the 1980s and was first introduced to the U.S. in Florida in 1991 after extensive host-specificity testing. This 5-page fact sheet was written by Emma Weeks, Jim Cuda, and Michael J. Grodowitz, and published by the UF Department of Entomology and Nematology, June 2014. EENY594/IN1036: Hydrilla Stem Weevil Bagous hydrillae O'Brien (ufl.edu)

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Host Range Studies with Bagous affinis (Coleoptera: Curculionidae), an Indian Weevil that Feeds on Hydrilla Tubers

Cited by 15 publications

References 7 publications

A phylogenetic analysis of the aquatic weevil tribe Bagoini (Coleoptera: Curculionidae) based on morphological characters of adults

A phylogenetic analysis of the aquatic weevil tribe Bagoini (Coleoptera: Curculionidae) based on morphological characters of adults

3.7. Curculionidae Latreille, 1802

Hydrilla Stem Weevil: Bagous hydrillae O’Brien

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