A new species of invasive gall wasp (Hymenoptera: Eulophidae: Tetrastichinae) on blue gum (Eucalyptus globulus) in California

Arakelian, Gevork; Garrison, Rosser W.; Gates, Michael W.

doi:10.11646/zootaxa.2121.1.4

Cited by 28 publications

(20 citation statements)

References 17 publications

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“…Epichrysocharis burwelli produces small, dark, pustule-like galls on the leaves of lemon-scented gums in California (116). Selitrichodes globulus was described galling twigs and small branches from California in 2008, but the authors ascribe it to an Australian origin (81). Leptocybe invasa produces galls that swell stems, petioles, and leaf midribs (142).…”

Section: North Americamentioning

confidence: 99%

Native and Exotic Pests of Eucalyptus: A Worldwide Perspective

Paine

Steinbauer

Lawson³

2011

Annu. Rev. Entomol.

186

127

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Eucalyptus species, native to Australia, Indonesia, the Philippines, and New Guinea, are the most widely planted hardwood timber species in the world. The trees, moved around the globe as seeds, escaped the diverse community of herbivores found in their native range. However, a number of herbivore species from the native range of eucalypts have invaded many Eucalyptus-growing regions in North America, Europe, Africa, Asia, and South America in the last 30 years. In addition, there have been shifts of native species, particularly in Africa, Asia, and South America, onto Eucalyptus. There are risks that these species as well as generalist herbivores from other parts of the world will invade Australia and threaten the trees in their native range. The risk to Eucalyptus plantations in Australia is further compounded by planting commercially important species outside their endemic range and shifting of local herbivore populations onto new host trees. Understanding the mechanisms underlying host specificity of Australian insects can provide insight into patterns of host range expansion of both native and exotic insects.

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Section: North Americamentioning

confidence: 99%

Native and Exotic Pests of Eucalyptus: A Worldwide Perspective

Paine

Steinbauer

Lawson³

2011

Annu. Rev. Entomol.

186

127

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“…Non-native invasive insects have a significant impact on forestry because they are not accompanied by their principal natural enemies, so can easily reach epidemic levels [5]. Gall inducers of the Eulophidae family-which includes the micro wasp in Hymenoptera, of the genus Ophelimus-represent an important radiation from Australia, constituting one of the most important invasive species present in forests [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Ophelimus migdanorum Molina-Mercader sp. nov. (Hymenoptera: Eulophidae): Application of Integrative Taxonomy for Disentangling a Polyphenism Case in Eucalyptus globulus Labill Forest in Chile

Molina-Mercader¹,

Angulo

Olivares

et al. 2019

Forests

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In 2003, a new gall-inducing wasp of the genus Ophelimus was detected in the Valparaíso Region (Chile), affecting tree plantations of Eucalyptus globulus Labill and Eucalyptus camaldulensis Dehnh. Since then Ophelimus has been frequently detected in different plantations in Chile, covering a widespread area. A preliminary collaborative study suggests that the micro-wasp detected should be classified as a new Ophelimus species. In this paper, using an integrative approach (including genetic, morphological, and behavioral data), we addressed the delimitation and description of this new species. This study involved the use of brood adult specimens, raised at the laboratory of MIPlagas Ltda., from infested twigs of E. globulus collected in several localities between of Valparaíso and Los Lagos Regions (Chile). Morphological structures were described according to current Eulophidae taxonomic keys, as well as additional traits, such as gall morphology and behavior. Genetic characterization was implemented using a phylogenetic approach, based on a 648 bp specific fragment of the mitochondrial Cytochrome Oxidase I gene (COI 5 region) obtained from collected specimens and available databases (Genbank, NCBI, and BOLDSystem). Specifically, distinctive patterns of variation were detected in traits like gall and antennae morphology, growth habit trends, and a notorious polyphenism in the setae from the sub marginal vein. Overall evidence suggests that this new entity should be considered a new species in Ophelimus, which is henceforth named Ophelimus migdanorum Molina-Mercader.

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“…The genus Ophelimus (Haliday, 1844) has approximately 50 species associated to the production of galls on different species of Eucalyptus (La Salle et al, 2009). Among these, only two species have been documented: Ophelimus maskelli (Ashmead) (Hymenoptera: Eulophidae) (Protasov et al, 2007a) and Ophelimus eucalypti Gahan (Hymenoptera: Eulophidae) (Gahan, 1922;Withers et al, 2000;La Salle, 2005).…”

Section: Introductionmentioning

confidence: 99%

Detection and distribution of Ophelimus migdanorum and its possible biocontroller Closterocerus chamaeleon in productive areas of Eucalyptus globulus in Chile

Molina-Mercader¹,

Angulo²,

Sanfuentes³

et al. 2019

Chil. j. agric. res.

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Wasps that belong to the genus Ophelimus develop galls on Eucalyptus spp., and E. globulus is considered among the most susceptible species. In 2003, a new species of Ophelimus was detected in Chile. This species forms galls on E. globulus and E. camaldulensis, and it was recently considered as Ophelimus migdanorum nov sp. The present study was carried out 16 yr after its detection and it was aimed to determine the presence of Ophelimus in plantations of E. globulus located in Maule, Biobío and La Araucanía Regions, which represent 76% of the area covered with this species in the country. Between August and September 2017, a total of 165 sampling forest farms were established in stands of E. globulus, located in these regions of the country. In each farm, twigs were collected that represented formation of galls and maintained in laboratory conditions until the emergence of adults. These were identified according to their external morphological characteristics. The presence of O. migdanorum and Closterocerus chamaeleon was determined. Both species emerged together in all the regions considered in the study, 92.1% and 46.7% of the evaluated forest farms, respectively. Then Ophelimus migdanorum is widely distributed in Maule, Biobío and La Araucanía Regions, in Chile.

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A new species of invasive gall wasp (Hymenoptera: Eulophidae: Tetrastichinae) on blue gum (Eucalyptus globulus) in California

Abstract: The blue gum gall wasp, Selitrichodes globulus La Salle & Gates, n. sp. (Hymenoptera: Eulophidae: Tetrastichinae), is described as an invasive gall inducer on blue gum, Eucalyptus globulus Labill. (Myrtaceae), in California.

Cited by 28 publications

References 17 publications

Native and Exotic Pests of Eucalyptus: A Worldwide Perspective

Native and Exotic Pests of Eucalyptus: A Worldwide Perspective

Ophelimus migdanorum Molina-Mercader sp. nov. (Hymenoptera: Eulophidae): Application of Integrative Taxonomy for Disentangling a Polyphenism Case in Eucalyptus globulus Labill Forest in Chile

Detection and distribution of Ophelimus migdanorum and its possible biocontroller Closterocerus chamaeleon in productive areas of Eucalyptus globulus in Chile

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