Global invasive species database

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  • Ants inside plug (Photo: Xavier Espadaler, Universitat Aut�noma de Barcelona)
  • Aphid tending on Quercus ilex by Lasius neglectus workers (Photo: Xavier Espadaler, Universitat Aut�noma de Barcelona)
  • Lasius neglectus on extrafloral nectaries of cherry laurel (Prunus laurocerasus). Insert:  Hedge of cherry laurel, a plant frequently used as a hedge (Photo: Xavier Espadaler, Universitat Aut�noma de Barcelona)
  • Eggs of Lasius neglectus, ready to eclose (Photo: Xavier Espadaler, Universitat Aut�noma de Barcelona)
  • Male, frontal view of head (Photo: Xavier Espadaler, Universitat Aut�noma de Barcelona)
  • Worker mandible; note seven teeth (Photo: Xavier Espadaler, Universitat Aut�noma de Barcelona)
  • Queen larvae, ready to spin coccoon (Photo: Xavier Espadaler, Universitat Aut�noma de Barcelona)
  • Queen, frontal view of head (Photo: Xavier Espadaler, Universitat Aut�noma de Barcelona)
  • Worker, frontal view of head (Photo: Juan Jes�s L�pez at Mijas, M�laga, Spain. Webmaster@formicidae.com)
  • Worker, lateral view (Photo: Juan Jes�s L�pez at Mijas, M�laga, Spain. Webmaster@formicidae.com)
  • Worker, lateral view (Photo: Xavier Espadaler, Universitat Aut�noma de Barcelona)
  • Worker, top view (Photo: Juan Jes�s L�pez at Mijas, M�laga, Spain. Webmaster@formicidae.com)
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Common name
invasive garden ant (English)
Synonym
Similar species
Lasius austriacus, Lasius turcicus
Summary
Lasius neglectus is a recent arrival in Europe. Some of its populations have attained pest status but on other sites, the ant is still in an arrested state, perhaps in the lag-phase, lacking the major characteristics of invaders. Its negative effects are caused by the enormous numbers of ants tending aphids on trees and occupation of electrical conduits in homes and gardens.
Species Description
Lasius neglectus, though known to be present at a location in Budapest, Hungary, was only described in 1990 (Van Loon et al. 1990). It is a member of the sub-family Formicinae. The length of the worker, queen and male are 2.5-3mm (worker), 5.5-6mm (queen), 2.5mm (male); the mandibles are 7-toothed; hairs are lacking on the scape (first segment of antenna) and usually on the legs. Their colour is yellowish-brown with the thorax somewhat paler. The live weight of the worker is 0.65-0.80mg and the queen, 6.8-9.6mg. Espadaler and Bernal (2004) observed that \"the female is immediatly recognisable within the European Lasius by its comparatively reduced size and proportionately smaller gaster (swollen part of abdomen), as compared with the thorax. The male is the smallest within the European Lasius (s.str.) species\".

Polygyny in the nest (the presence of more than one functional queen), and the enormous numbers of workers travelling up and down trees is also a characteristic of the species.

Notes
Lasius neglectus is a poorly known species living in huge supercolonies with no apparent within-colony boundaries, and with a highly polygynous kin-structure (Van Loon et al. 1990; Boomsma et al. 1990)
Lifecycle Stages
Lifecycle stages (data from one colony in north-east Spain): eggs (from April to October), larvae (all year around), worker pupae (May, June, September, October), sexuals pupae (May, June), winged sexuals (May, June).
Habitat Description
In Europe Lasius neglectus is found in urbanised areas, from city streets to semi-urban lots with some natural vegetation. Trees are a key resource for the ant. In Asia Minor it is found in natural steppe habitats (Seifert, 2000).
Reproduction
The colony grows by budding, involving the displacement of queens with some workers at short distances (a few metres). In laboratory studies, isolated queens have also been shown to be able to found new colonies, although it is not known if this possibility exists under natural conditions. The carbohydrate content of newly mated queens is consistent with the observed loss of mating flight of this species although the relative wing area indicates that L. neglectus queens should be able to fly.
Nutrition
Feeding is mainly based on sugary foods (aphid honeydew, nectar, vegetal juices). In spring the ants look for aphids at the base of herbs and small vegetation, where the ant constructs temporary earth shelters. In summer, when tree aphids are abundant, the ants shift to this nearly ubiquitous resource.
Pathway
Movement of potted plants, turf peat, soil from construction.

Principal source: Van Loon et al. 1990; Boomsma et al. 1990; Seifert, 2000; Espadaler & Rey, 2001; Espadaler and Bernal, 2004

Compiler: Wayne J. Crans, Director - Mosquito Research, Rutgers University, New Brunswick, NJ. USA & IUCN/SSC Invasive Species Specialist Group (ISSG)

Review: Xavier Espadaler CREAF-Unitat d'Ecologia Universitat Aut�noma de Barcelona Spain

Publication date: 2009-10-28

Recommended citation: Global Invasive Species Database (2018) Species profile: Lasius neglectus. Downloaded from http://www.iucngisd.org/gisd/species.php?sc=663 on 19-07-2018.

General Impacts
Lasius neglectus may invade the interior of houses and occupy electrical conduits, causing short-circuits or damage to electro-mechanical devices. Outdoors, it nests at the base of plants and attends aphids on trees, usually producing negative effects. As a result of the ants protecting aphids and \"milking\" them for their honeydew it causes honeydew to be produced in large quantities, in turn causing sooty mould to grow on leaves.

Not all populations seem to be invasive, in Spain only three out of eleven populations have been denounced as damaging or invasive. This is probably due to climatic constraints, especially dryness during the Mediterranean summer.

Management Info
Preventative measures: The Pacific Ant Prevention Programme is a proposal prepared for the Pacific Plant Protection Organisation and Regional Technical Meeting for Plant Protection. This plan aims to prevent the red imported fire ant and other invasive ant species with economic, environmental or social impacts from establishing within or spreading between countries in the Pacific.

A detailed pest risk assessment for the eight species ranked as having the highest potential risk to New Zealand (Anoplolepis gracilipes, Lasius neglectus, Monomorium destructor, Paratrechina longicornis, Solenopsis geminata, Solenopsis richteri, Tapinoma melanocephalum, Wasmannia auropunctata) was prepared as part of 'The invasive ant risk assessment project', Harris et al. 2005., for Biosecurity New Zealand by Landcare Research. Lasius neglectus scored as a high-risk threat to New Zealand. The Invasive ant risk assessment for Lasius neglectus can be viewed at Lasius neglectus risk assessment. Please see Lasius neglectus information sheet for more information on biology, distribution, pest status and control technologies.

Integrated Pest Management: Usual measures against domestic ants are not expected to be effective. The enormous numbers of ants that integrate in the supercolonies are to be controlled by an Integrated Pest Management (IPM) strategy, involving both chemical control on trees and soil, physical management of trees (cutting branches in contact with buildings) and limiting irrigation as much as possible (Rey and Espadaler, 2005).

Please follow this link for more detailed information on the management of the Lasius neglectus compiled by the ISSG.

Countries (or multi-country features) with distribution records for Lasius neglectus
NATIVE RANGE
  • turkey
  • uzbekistan
Informations on Lasius neglectus has been recorded for the following locations. Click on the name for additional informations.
Lorem Ipsum
Location Status Invasiveness Occurrence Source
Details of Lasius neglectus in information
Status
Invasiveness
Arrival date
Occurrence
Source
Introduction
Species notes for this location
Location note
Management notes for this location
Impact
Mechanism:
Outcome:
Ecosystem services:
Impact information
Lasius neglectus may invade the interior of houses and occupy electrical conduits, causing short-circuits or damage to electro-mechanical devices. Outdoors, it nests at the base of plants and attends aphids on trees, usually producing negative effects. As a result of the ants protecting aphids and \"milking\" them for their honeydew it causes honeydew to be produced in large quantities, in turn causing sooty mould to grow on leaves.

Not all populations seem to be invasive, in Spain only three out of eleven populations have been denounced as damaging or invasive. This is probably due to climatic constraints, especially dryness during the Mediterranean summer.

Red List assessed species 0:
Locations
SPAIN
Mechanism
[1] Competition
Outcomes
[1] Environmental Ecosystem - Habitat
  • [1] Reduction in native biodiversity
Management information
Preventative measures: The Pacific Ant Prevention Programme is a proposal prepared for the Pacific Plant Protection Organisation and Regional Technical Meeting for Plant Protection. This plan aims to prevent the red imported fire ant and other invasive ant species with economic, environmental or social impacts from establishing within or spreading between countries in the Pacific.

A detailed pest risk assessment for the eight species ranked as having the highest potential risk to New Zealand (Anoplolepis gracilipes, Lasius neglectus, Monomorium destructor, Paratrechina longicornis, Solenopsis geminata, Solenopsis richteri, Tapinoma melanocephalum, Wasmannia auropunctata) was prepared as part of 'The invasive ant risk assessment project', Harris et al. 2005., for Biosecurity New Zealand by Landcare Research. Lasius neglectus scored as a high-risk threat to New Zealand. The Invasive ant risk assessment for Lasius neglectus can be viewed at Lasius neglectus risk assessment. Please see Lasius neglectus information sheet for more information on biology, distribution, pest status and control technologies.

Integrated Pest Management: Usual measures against domestic ants are not expected to be effective. The enormous numbers of ants that integrate in the supercolonies are to be controlled by an Integrated Pest Management (IPM) strategy, involving both chemical control on trees and soil, physical management of trees (cutting branches in contact with buildings) and limiting irrigation as much as possible (Rey and Espadaler, 2005).

Please follow this link for more detailed information on the management of the Lasius neglectus compiled by the ISSG.

Locations
SPAIN
Management Category
Control
Bibliography
25 references found for Lasius neglectus

Managment information
Espadaler, X and V. Bernal, 2004. Lasius neglectus
Summary: Summary of known distribution, morphology and main biological characteristics and damages caused by this species.
Available from: http://www.creaf.uab.es/xeg/Lasius/Ingles/index.htm [Accessed 14 February 2005]
Harris, R.; Abbott, K.; Barton, K.; Berry, J.; Don, W.; Gunawardana, D.; Lester, P.; Rees, J.; Stanley, M.; Sutherland, A.; Toft, R. 2005: Invasive ant pest risk assessment project for Biosecurity New Zealand. Series of unpublished Landcare Research contract reports to Biosecurity New Zealand. BAH/35/2004-1.
Summary: The invasive ant risk assessment project, prepared for Biosecurity New Zealand by Landcare Research, synthesises information on the ant species that occur in New Zealand (native and introduced species), and on invasive ants that pose a potential threat to New Zealand.
There is a great deal of information in this risk assessment on invasive ant species that is of global interest, including; biology, distribution, pest status, control technologies.
The assessment project has five sections.1) The Ants of New Zealand: information sheets on all native and introduced ants established in New Zealand 2) Preliminary invasive ant risk assessment: risk scorecard to quantify the threat to New Zealand of 75 ant species. 3) Information sheets on invasive ant threats: information sheets on all ant species scored as medium to high risk (n = 39). 4) Pest risk assessment: A detailed pest risk assessment for the eight species ranked as having the highest potential risk to New Zealand (Anoplolepis gracilipes, Lasius neglectus, Monomorium destructor, Paratrechina longicornis, Solenopsis geminata, Solenopsis richteri, Tapinoma melanocephalum, Wasmannia auropunctata) 5) Ranking of high risk species: ranking of the eight highest risk ant species in terms of the risks of entry, establishment, spread, and detrimental consequences.
NB. The red imported fire ant (Solenopsis invicta) is considered to be the worst ant pest in the world. However, Solenopsis invicta was specifically excluded from consideration in this risk assessment as this species has already been subject to detailed consideration by Biosecurity New Zealand
(This invasive ant pest risk assessment was funded by Biosecurity New Zealand and Foundation for Research, Science and Technology. Undertaken by Landcare Research in collaboration with Victoria University of Wellington and Otago Museum)
Available from: http://www.landcareresearch.co.nz/research/biocons/invertebrates/Ants/ant_pest_risk.asp [Accessed 20 May 2007]
Harris, R.J. & Barker, G. (2007). Relative risk of invasive ants (Hymenoptera: Formicidae) establishing in New Zealand. New Zealand Journal of Zoology 34: 161-178.
McGlynn, T.P. 1999. The Worldwide Transfer of Ants: Geographical Distribution and Ecological Invasions, Journal of Biogeography 26(3): 535-548.
Pacific Ant Prevention Programme, March 2004. Pacific Invasive Ant Group (PIAG) on behalf of the IUCN/SSC Invasive Species Specialist Group (ISSG).
Summary: A proposal prepared for the Pacific Plant Protection Organisation and Regional Technical Meeting For Plant Protection. This plan aims to prevent the red imported fire ant and other invasive ant species with economic, environmental and/or social impacts, entering and establishing in or spreading between (or within) countries of the Pacific Region.
Rey, A and X. Espadaler, 2005. Area-wide management of the invasive garden ant Lasius neglectus (Hymenoptera: Formicidae) in northeast Spain. J.Agric. Urban Entom.
Summary: First intent to limit this pest. In two consecutive years, chemicals were applied on tree trunks and canopies. In addition to soil injections and in-house ant baits, a satisfactory control was reached.
Stanley, M. C. 2004. Review of the efficacy of baits used for ant control and eradication. Landcare Research Contract Report: LC0405/044. Prepared for: Ministry of Agriculture and Forestry.
Summary: Available from: http://www.landcareresearch.co.nz/research/biocons/invertebrates/ants/BaitEfficacyReport.pdf [Accessed 10 December 2005]
General information
ANTAREA. 2009. ANTAREA.
Summary: Available from http://antarea.fr/projet/index.html [Accessed June 10, 2009]
Boomsma, J.J., A.H. Brouwer and A.H. Van Loon, 1990. A new polygynous Lasius species (Hymenoptera, Formicidae).II. Allozymatic confirmation of specific status.
Summary: Formal morphological description of the species. Compared to Lasius alienus and Lasius
Czechowska, W. and Czechowski, W. 2003. Further record of Lasius neglectus Van Loon, Boomsma & Andr�sfalvy (Hymenoptera: Formicidae) from Warsaw, with a key to the Polish species of the subgenus Lasius s.str. Fragm. faun. 46: 195-202
Summary: Supplementary data on the population of Warsaw
Czechowska, W. & W. Czechowski, 1999. Lasius neglectus Van Loon, Boomsma & Andr�sfalvy, 1990 (Hymenoptera, Formicidae), nowy dla Polski gatunek mr�vki w Warszawie. Przeglad Zoologiczny 43: 189-191.
Summary: First reference for Poland
Dekoninck, W., C. De Baere, J. Mertens & J-P. Maelfait, 2002. On the arrival of the Asian invader ant Lasius neglectus in Belgium (Hymenoptera, Formicidae). Bull. Soc. roy. belg. Ent. 138: 45-48.
Summary: First reference for Belgium
Espadaler, X. 1999. Lasius neglectus Van Loon, Boomsma & Andr�sfalvy, 1990 (Hymenoptera, Formicidae), a potential pest ant in Spain. Orsis 14: 43-46.
Summary: First reference for the Iberian peninsula
Espadaler, X. & S. Rey, 2001. Biological constraints and colony founding in the polygynous invasive ant Lasius neglectus (Hymenoptera, Formicidae). Insectes soc. 48: 159-164.
Summary: Reproductive physiology (carbohydrates, lipids) and morphology (thorax and wing size in queens). Isolate queens are capable of starting new colonies.
Espadaler, X., S. Rey and V. Bernal, 2004. Queen number in a supercolony of the invasive garden ant, Lasius neglectus. Insectes soc. 51:
Espadaler, X. & V. Bernal, 2003. Exotic ants in the Canary Islands, Spain (Hymenoptera, Formicidae). Vieraea 31: 1-7.
Summary: First reference for the Canary Islands
Mark�, B. 1998. Six new ant species (Hymenoptera: Formicidae) for the Romanian myrmecofauna. Entomol. rom. 3: 119-123.
Summary: First reference for Romania.
Marlier, J.F., B. Schatz & J.C. de Biseau, 2002. Influence de Crematogaster scutellaris (Hymenoptera: Myrmicinae) sur deux communaut�s de fourmis. Colloque UIEIS, Versailles: 68-72.
Paris, C.I. & Espadaler, X. (2009). Honeydew collection by the invasive garden ant Lasius neglectus versus the native ant L. grandis. Arthropod-Plant Interactions 3: 75-85.
Seifert, B. 1992. A taxonomic revision of the Palaearctic members of the ant subgenus Lasius s.str. (Hymenoptera: Formicidae). Abh. Ber. Naturkundemus. G�rlitz 66: 1-67.
Summary: Formal taxonomic revision of Lasius (s.str.) ants. Treatment for each species includes biological comments.
Seifert, B. 2000. Rapid range expansion in Lasius neglectus (Hymenoptera, Formicidae)- an Asian invader swamps Europe. Mitt. Mus. Nat. kd. Berl., Dtsch. Entomol. Z. 47: 173-179.
Summary: Update of known and unpublished locations for Lasius neglectus.
Tartally, A. 2000. A Magyarorsz�gr�l le�rt inv�z�v Lasius neglectus van Loon, Boomsma et Andr�sfalvy, 1990 (Hymenoptera: Formicidae) �jabb hazai lel�helyei. (New data on the distribution of the invasive Lasius neglectus van Loon, Boomsma et Andrasfalvy, 1990 (Hymenoptera: Formicidae) described from Hungary). Fol ent. hung. 61: 298-300.
Van Loon, A.J., J.J. Boomsma & A. Andr�sfalvy, 1990. A new polygynous Lasius species (Hymenoptera, Formicidae) from Central Europe. I. Description and general biology. Insectes soc. 37: 348-362.
Summary: Allozyme analysis of the Budapest population, compared to Lasius alienus.
Contact
The following 5 contacts offer information an advice on Lasius neglectus
Cremer,
Sylvia
Organization:
Institute of Biology - Department of Population Biology
Address:
Room 219, Building 12, Universitetsparken 15 DK-2100 Copenhagen
Phone:
45-3532-1257
Fax:
Espadaler,
Xavier
Webpage West Mediterranean and Macaronesian ants
Organization:
CREAF-Unitat d Ecologia
Address:
Universitat Aut�noma de Barcelona E-08193 Bellaterra
Phone:
34 93 5812768
Fax:
34 93 5814151
O Connor,
Simon
Simon has previously coordinated New Zealand s national invasive ant programme which included responding to incursions and development and implementation of the surveillance programme. He is currently employed by the Secretariat of the Pacific Community to implement the preliminary stages of the Pacific Ant Prevention Programme. Extensive surveillance through the Pacific islands, project work around specific ant problems and public awareness building has been the main focus of his current role
Organization:
Coordinator, Pacific Ant Prevention Programme Secretariat of the Pacific Community
Address:
C/- MAF PO Box 2526 Wellington New Zealand
Phone:
64 4 8190539
Fax:
64 4 8190736
Pedersen,
Jes S.
Organization:
Institute of Biology - Department of Population Biology
Address:
Universitetsparken 15 DK-2100 Copenhagen
Phone:
45-3532-1254
Fax:
45-3532-1250
Tartally,
Andr�
Organization:
Department of Evolutionary Zoology and Human Biology
Address:
University of Debrecen, Faculty of Sciences, H-4010 Debrecen, P.O. Box 3, Hungary
Phone:
36-52/316-666 (XT2332)
Fax:
36-52/512-941