Dr Andrew Polaszek

Biography

Qualifications

1982    BSc Hons Agricultural Zoology (University of Newcastle-upon-Tyne)

1987    PhD Zoology (Imperial College, London)

1987    DIC (Diploma of Imperial College)

 

Vocational training

1992            Industrial Society Training Course: Leading Projects

 

Employment

2008-             Researcher, Hymenoptera Division, Entomology Dept.

2004-2007    Executive Secretary, International Commission on Zoological Nomenclature.

2004-2007    Externally-funded researcher, ALARM Project, Natural History Museum.

2000-2003    Entomological consultant based in Entomology Dept, Natural History Museum, 

                        London, and School of Biological Sciences, Imperial College, London.

1990-1994    Principal Investigator and Project Leader, Dept of Entomology, Wageningen 

                        Agricultural University, The Netherlands.

1985-1990,   CABI Bioscience, Principal Scientific Officer. Head, Agricultural Entomology.    

1995-2000

Other positions

Editor (Entomology), Journal of Natural History 1995-present

Editor (Insect Systematics), Journal of African Zoology 1995-1999

Editorial Board, Bulletin of Entomological Research 1990-1997

Editorial Board, Acta Zootaxonomica Sinica 2001-present

Editorial Board, Systematics and Biodiversity 2002-present

Scientific interests

Insect systematics and evolution, particularly evolution of host/parasitoid relationships in plant-feeders and parasitoids. The ecological impact of invasive insects and their natural enemies, especially in relation to island ecosystems. Conservation of natural enemies and pollinators. Applied entomology with reference to the tropics, biological control and integrated pest management. Insect identification and information database systems. Reformation and modernisation of animal systematics and nomenclature, including the development of a universal register for animal names and nomenclatural acts.

Membership of Societies / Scientific Citizenship

International Hymenopterists' Society (Member)

Royal College of Science Association (Member)

Imperial College Union (Member).

Consultative Group on BioNET International (Founder Member)

Systematics Association (Member)

Research

Systematics and Biology of Proctotrupomorpha

My current research on the biosystematics of parasitoid Hymenoptera is focussed on two main areas:

1. Aphelinidae: Coccophaginae - the megadiverse genus Encarsia

 

Encarsia (Hymenoptera, Chalcidoidea, Aphelinidae) contains nearly 400 currently valid species, with the true number probably at least 10x that figure. The number of described Encarsia species has doubled in the last 25 years, and the potential for discovery of new species appears to be greater than for any other genus of Hymenoptera. 

Molecular studies suggest there is greater differentiation in the single 28S-D2 gene fragment across the genus than across the entire closely-related chalcidoid family Eulophidae, containing nearly 5,000 species. 

 

Despite this diversity, Encarsia species are relatively uniform in terms of biology, with the majority of species heteronomous parasitoids of sessile Sternorrhyncha. There are, however, a number of unusual exceptions to this general rule, and studying these exceptions may help to explain species diversity in this genus.

Together with a team of collaborators from France, Germany, Iran, Italy, Spain (Canary Islands) and the U.S.A. we are conducting intensive research on the systematics of Encarsia and its related genera within the subfamily Coccophaginae. Morphological studies are focussing on morphometrics of the antennae, wings, legs and ovipositor, with molecular markers analysed include the ribosomal 28s rDNA and mitochondrial COI.

Identification key to the European genera of bees (Insecta: Apoidea)

 

2. The Platygastroidea Planetary Biodiversity Inventory (PBI)

The Platygastroidea PBI, funded by the US National Science Foundation, is investigating the systematics of several critical genera, with the objective of rapidly generating semi-automated species descriptions 

We are currently targeting the genera Scelio and Oreiscelio, with work on Heptascelio completed.

 

 

Research Student Supervision / examination

Dr Shahab Manzari (Iran) Imperial College 2000-2003. PhD: Phylogeny and systematics of whiteflies and their parasitoids.

Dr Xiao Hui (Institute of Zoology, Beijing). 2001-2002. Royal Society K.C. Wong Postdoctoral Fellowship  Systematics of Asian Pteromalidae.

Prof. Huang Jian (Fujian Agricultural University) 1996-1997. Royal Society K.C. Wong Postdoctoral Fellowship. Systematics of Chinese Encarsia.

External examiner for three MSc theses and two PhDs.

Publications

Publications

2011

• Macfadyen, S., Craze, P.G., Polaszek, A., van Achterberg, C. & Memmott, J. ( 2011 ) Parasitoid diversity reduces the variability in pest control  Proceedings of the Royal Society Series B (online March 2011) 1-8 .
• Polaszek A., Rugman-Jones P.F., Stouthamer R., Hernandez-Suarez E., Cabello T., Pino Pe´rez M. ( 2011 ) Molecular and morphological diagnoses of five species
  of Trichogramma: biological control agents of Chrysodeixis
  chalcites (Lepidoptera: Noctuidae) and Tuta absoluta
  (Lepidoptera: Gelechiidae) in the Canary Islands BioControl (2012) 57:21–35 . BioControl (2012) 57:21–35 | 10.1007/s10526-011-9361-y
• Polaszek, A ( 2011 ) Primary and secondary parasitoids of Maculolachnus submacula (Hemiptera: Aphididae): Pauesia maculolachni (Hymenoptera: Braconidae) and Euneura lachni (Hymenoptera: Pteromalidae) new to Britain. British Journal of Entomology and Natural History 24 : 27-29 .
• Polaszek, A. & Gill, R ( 2011 ) A new species of whitefly (Hemiptera: Aleyrodidae) and its parasitoid (Hymenoptera: Aphelinidae) from desert lavender in California Zootaxa 2750 : 51-59 .
• Polaszek, A. & Albarracin, E.L ( 2011 ) Two new Encarsia species (Hymenoptera: Aphelinidae) reared from eggs of Cicadellidae (Hemiptera: Auchenorrhyncha) in Argentina: an unusual new host association Journal of Natural History 45 : 55-64 .

2010

• Polaszek, A ( 2010 ) Species diversity and host associations of Trichogramma in Eurasia, In: Cônsoli, F.L., Parra, J.R.P. & Zucchi, R.A. Egg parasitoids in agroecosystems with emphasis on Trichogramma. Progress in Biological Control 9. 1-479 . Springer, Dordrecht : Chapter 9 , 237-266 .
• Polaszek, A. ( 2010 ) Linnaeus-Sherborn-ZooBank, In: Systema Naturae 250 – the Linnaean Ark . CRC Press, Boca Raton, Florida, USA. 1-300 : Chapter 15 , 163-172 .
• Polaszek, A. (Ed.) ( 2010 ) Systema Naturae 250 – the Linnaean Ark. . CRC Press, Boca Raton, Florida, USA. 1-300 .
• Rasekh, B, Polaszek, A. ( 2010 )  New records of Encarsia (Hymenoptera: Chalcidoidea: Aphelinidae) parasitising Aleyrodidae (Hemiptera: Sternorrhyncha) in Iran, with the description of a new species. Journal of Hymenoptera Research 19(2) : 225-226 .

2009

• Macfadyen, S., Gibson, R., Polaszek, A., Morris, R.J., Craze, P.G., Planqué, R., Symondson, W.O.C. & Memmott, J. ( 2009 ) Do differences in food web structure between organic and conventional farms affect the ecosystem service of pest control? Ecology Letters 12(3) : 229-238 . 10.1111/j.1461-0248.2008.01279.x
• Polaszek, A. ( 2009 ) Esteemed Professor von Linné. In: Wheeler, Q. & Knapp, S. (eds), In: Letters to Linnaeus . Linnean Society : London , 185–187 .
• Polaszek, A. ( 2009 ) Masnerium wellsae gen. nov., sp. nov. (Hymenoptera: Platygastridae: Sceliotrachelinae) a parasitoid of Aleuroduplidens wellsae Martin (Hemiptera: Aleyrodidae) in Australia. Zookeys 20 : 119-125 .
• Polaszek, A., Hernández-Suárez, E.M., Manzari, S.,  Pedata, P.A. & Schmidt, S. ( 2009 ) Megadiversity of Encarsia (Chalcidoidea, Aphelinidae): macroevolution in a microhymenopteran., In:  Red de Cuerpos Académicos. Sistematíca y Ecología en Comunidades Forestales y Cultivos. Taller Internacional sobre Recursos Naturales. . 81-86 .
• Polaszek, A., McIvor, C. & Brooks, J. ( 2009 ) Pterandrophysalis levantina Nowicki (Hymenoptera: Trichogrammatidae): genus and species new to Britain and France British Journal of Entomology and Natural History 22 : 43-45 .
• Talamas, E.J., Johnson, N.F., van Noort, S. Masner, L. & Polaszek, A. ( 2009 ) Revision of world species of the genus Oreiscelio Kieffer (Hymenoptera: Platygastroidea, Platygastridae) Zookeys 6 : 1-68 . 10.3897/zookeys.6.67

2008

• Heraty, J.M., Polaszek, A. & Schauff, M.E. ( 2008 ) Systematics and Biology of Encarsia, In: Gould, J., Hoelmer, K. & Goolsby, J. (Eds). Classical Biological Control of Bemisia tabaci in the United States. A review of interagency research and implementation. Progress in Biological Control 4. . Springer Science and Business Media B.V. 71-87 .
• Johnson, N.F., Masner, L., Musetti, L., van Noort, S., Rajmohana K., Darling, D.C., Guidotti, A. & Polaszek, A. ( 2008 ) Revision of world species of the genus Heptascelio Kieffer (Hymenoptera: Platygastroidea, Platygastridae) Zootaxa 1776 : 1-51 . Zootaxa
• Polaszek, A. ( 2008 ) Systema Naturae 250, Museum National d’Histoire Naturelle, Paris, France. 26–27 August 2008 Bulletin of Zoological Nomenclature 65: 1-2 .
• Polaszek, A. ( 2008 ) Comment on the proposed conservation of the usage of the generic name of Drosophila Fallén, 1823 (insecta, Diptera). Bulletin of Zoological Nomenclature 65: 55 .
• Polaszek, A. & Kolberg, R. ( 2008 ) Rediscovery of Gryon chrysolaum (Walker) (Hymenoptera: Platygastridae) - an egg parasitoid of Holhymenia rubiginosa Breddin and Anisoscelis foliacea Fabricius (Heteroptera: Coreidae) Zootaxa 1968 : 39-44 . Zootaxa
• Polaszek, A. & Manzari, S. ( 2008 ) A new species of Encarsia (Hymenoptera: Aphelinidae) parasitising Aleuromarginatus tephrosiae (Hemiptera: Aleyrodidae) in Iran and Oman Journal of Hymenoptera Research 17 : 2-137 .
• Polaszek, A., Pyle, R. & Yanega, D. ( 2008 ) Animal names for all – ICZN, ZooBank and the New Taxonomy. In: Wheeler, Q.D. (Ed.), In: The New Taxonomy. Systematics Association Special Volume Series 76 . CRC Press Boca Raton : London, New York , 129-141 .
• Shih, Y.-T., Ko, C.-C. Polaszek, A. ( 2008 ) Encarsia (Hymenoptera: Aphelinidae) parasitoids of Bemisia species in Taiwan (Hemiptera: Aleyrodidae) Journal of Natural History 42 : 2923-2941 . 10.1080/00222930802372482
• Valverde, L., Loiacono, M. & Polaszek, A. ( 2008 ) Primera cita de Telenomus cyamophylax (Hymenoptera:Scelionidae) parasitoide de huevos de Anticarsia gemmatalis (Lepidoptera: Noctuidae) en Argentina Revista de la Sociedad Entomologica Argentina 67(3-4) : 83-85 .

2007

• Knapp, S., Polaszek, A. & Watson, M. ( 2007 ) Spreading the word Nature 446 : 261-262 . 10.1038/446261a
• Masner, L., Johnson, N.F. & Polaszek, A. ( 2007 ) Redescription of Archaeoscelio Brues and description of three new genera of Scelionidae (Hymenoptera): a challenge to the definition of the family American Museum Novitates 3550 : 1-24 . 10.1206/0003-0082(2007)3550[1:ROABAD]2.0.CO;2
• Polaszek, A. ( 2007 ) Identification key to the European genera of bees (Insecta: Apoidea). . http://www.iczn.org/ALARM/ALARM_home.html
• Polaszek, A. & Rajmohana K. ( 2007 ) Taxonomy of the egg parasitoids of rice black bug, Scotinophara spp., In: Joshi, R.C., Barrion, A.T & Sebastian, L.S. (Eds) Rice black bugs: taxonomy, ecology, and management of invasive species. 1-793 . Philippine Rice Research Institute. : Science City of Muñoz, Nueva Ecija , 351-359 .
• Schmidt, S. & Polaszek, A. ( 2007 ) The Australian species of Encarsia Förster (Hymenoptera, Chalcidoidea: Aphelinidae), parasitoids of whiteflies (Hemiptera, Sternorrhyncha, Aleyrodidae) and armoured scale insects (Hemiptera, Coccoidea: Diaspididae) Journal of Natural History 41 : 2099– 2265. .
• Schmidt, S. & Polaszek, A. ( 2007 ) Encarsia or Encarsiella? (Hymenoptera, Aphelinidae) – redefining generic limits based on morphological and molecular evidence. Systematic Entomology 32 : 81-94 . 10.1111/j.1365-3113.2006.00364.x
• Varkonyi, G. & Polaszek, A. ( 2007 ) Rediscovery and revision of Foenobethylus Kieffer, 1913 (Hymenoptera: Bethylidae) Zootaxa 1546 : 1-14 .

2006

• Gumovsky, A., Polaszek, A., Rabbi, M., Murphy, S. & Zhu, C-D. ( 2006 ) Closterocerus oryzamyntor (Hymenoptera: Eulophidae: Entedoninae), a larval parasitoid of the rice hispa Dicladispa armigera in Bangladesh (Coleoptera: Chrysomelidae: Hispinae) Zootaxa 1241 : 51-59 . Zootaxa
• Polaszek, A. ( 2006 ) Two words colliding: resistance to changes in the scientific names of animals - Aedes vs Stegomyia Trends in Parasitology 22(1) : 8-9 . 10.1016/j.pt.2005.11.003
• Polaszek, A. & Cranbrook, G. ( 2006 ) Insect species described from Alfred Russel Wallace’s Sarawak collections Malayan Nature Journal 57(4) : 433-462 . Malayan Nature Journal
• Polaszek, A. & Wilson, E.O. ( 2006 ) Sense and stability in animal names Trends in Ecology & Evolution 20 : 421-422 . 10.1016/j.tree.2005.05.016

2005

• Hui, X., Polaszek, A. & Huang, D.-W. ( 2005 ) A study of the genus Callitula Spinola (Hymenoptera: Pteromalidae) from China Oriental Insects 39 : 233-240 .
• Polaszek, A., Agosti, D., Alonso-Zarazaga, M., Beccaloni, G., de Place Bjørn, P., Bouchet, P., Brothers, D.J., Cranbrook, G., Evenhuis, N., Godfray, H.C.J., Johnson, N.F., Krell, F.-T., Lipscomb, D., Lyal, C.H.C., Mace, G.M., Mawatari, S., Miller, S.E., Minelli, A., Morris, S., Ng, P.K.L., Patterson, D.J., Pyle, R.L., Robinson, N.J., Rogo, L., Taverne, J., Thompson, F.C., van Tol, J., Wheeler, Q.D. & & Wilson, E.O. ( 2005 ) A universal register for animal names Nature 437 : 477 . 10.1038/437477a
• Polaszek, A., Alonso-Zarazaga, M., Bouchet, P., Brothers, D.J., Evenhuis, N., Krell, F.-T., Lyal, C.H.C., Minelli, A., Pyle, R.L., Robinson, N.J., Thompson, F.C., & van Tol, J. ( 2005 ) ZooBank: the open-access register for zoological taxonomy: Technical Discussion Paper. Bulletin of Zoological Nomenclature 62(4): 210-220 .

2004

• Polaszek, A. Manzari, S. & Quicke, D.L.J. ( 2004 ) Morphological and molecular taxonomic analysis of the Encarsia meritoria species-complex (Hymenoptera, Aphelinidae), parasitoids of whiteflies (Hemiptera, Aleyrodidae) of economic importance Zoologica Scripta 33 : 403-421 . 10.1111/j.0300-3256.2004.00161.x
• Polaszek, A., Aplin, D., Brown, V.K. & Gange, A.C. ( 2004 ) First record of Pteromalus leucanthemi Janzon (Hymenoptera: Pteromalidae) in Britain, with notes on identification and biology British Journal of Entomology & Natural History 17 : 45-49 .

2003

• Hernández-Suárez, E., Carnero, A., Aguiar, A., LaSalle, J., Prinsloo, G.L. & Polaszek, A. ( 2003 ) Whitefly parasitoids (Hemiptera: Aleyrodidae; Hymenoptera: Aphelinidae, Eulophidae, Platygastridae) from the Macaronesian archipelagos of the Canary Islands, Madeira and the Azores Systematics and Biodiversity 1 : 55-108 . 10.1017/S1477200002001007
• Islam, Z., M.A. Rahman, M.A. Barrion, A.T., Polaszek, A., Chancellor, T., Heong, K.L., Ahmed, N., Haq, M. and Kamal, N.Q. ( 2003 ) Diversity of arthropods in irrigated rice in Bangladesh Bangladesh Journal of Entomology 13 : 1-15 .
• Pedata, P. & Polaszek, A. ( 2003 ) A revision of the Encarsia longifasciata species-group (Hymenoptera: Aphelinidae) Systematic Entomology 28 : 361-374 . 10.1046/j.1365-3113.2003.00216.x

2002

• Garonna, A.P., Espinosa, B., Giorgini, M., Pedata, P.A., Polaszek, A., Springate, L.S., Springate, N.D. & Guerrieri, E. ( 2002 ) Valutazione della biodiversita dei boschi mediterranei attraverso campionamenti intensivi di breve durata (short-term sampling): uno studio comparativo nei boschi della Campania e della Basilicata. Giornate Scientifiche del pollo delle Scienze et delle Tecnologie per la Vita. 491. .
• Kfir, R., Overholt, W.A., Khan, Z. & Polaszek, A. ( 2002 ) Biology and management of economically important lepidopterous cereal stem borers in Africa Annual Review of Entomology 47 : 701-731 . 10.1146/annurev.ento.47.091201.145254
• Manzari, S., Polaszek, A., Belshaw, R. & Quicke, D.L.J. ( 2002 ) Morphometric and molecular analysis of the Encarsia inaron species-group (Hymenoptera: Aphelinidae), parasitoids of whiteflies (Hemiptera: Aleyrodidae) Bulletin of Entomological Research 92 : 165-175 . 10.1079/BER2001144
• Polaszek, A., Rabbi, M. F., Islam, Z. & Buckley, Y. ( 2002 ) Trichogramma zahiri, an egg parasitoid of the rice hispa Dicladispa armigera in Bangladesh (Hymenoptera: Trichogrammatidae, Coleoptera: Chrysomelidae) Bulletin of Entomological Research 92 : 529-537 . 10.1079/BER2002197

2001

• Delvare, G. & Polaszek, A. ( 2001 ) Ordre Hymenoptera: pp. 129-134 in: Polaszek, A. & Delvare, G. (Eds.), In: Les foreurs des tiges de céréales en Afrique. Importance économique, systématique, ennemis naturels et méthodes de lutte . CIRAD/CTA 534 .
• Poinar jr., G.O. & Polaszek, A. ( 2001 ) Les nématodes, champignons, protozoaires, bactéries et virus pp. 285-296 in Polaszek, A. & Delvare, G. (Eds.), In: Les foreurs des tiges de céréales en Afrique. Importance économique, systématique, ennemis naturels et méthodes de lutte . CIRAD/CTA 534 .
• Polaszek, A. ( 2001 ) Famille Ceraphronidae. pp. 191-193 in: Polaszek, A. & Delvare, G. (Eds.), In: Les foreurs des tiges de céréales en Afrique. Importance économique, systématique, ennemis naturels et méthodes de lutte . CIRAD/CTA 534 .
• Polaszek, A. ( 2001 ) Famille Bethylidae. pp. 137-139 in: Polaszek, A. & Delvare, G. (Eds.), In: Les foreurs des tiges de céréales en Afrique. Importance économique, systématique, ennemis naturels et méthodes de lutte . CIRAD/CTA 534 .
• Polaszek, A. ( 2001 ) Hymenoptera: clé pour l'identification des familles pp. 135-136 in: Polaszek, A. & Delvare, G. (Eds.), In: Les foreurs des tiges de céréales en Afrique. Importance économique, systématique, ennemis naturels et méthodes de lutte . CIRAD/CTA 534 .
• Polaszek, A. & Delvare, G. (Eds.) ( 2001 ) Les foreurs des tiges de céréales en Afrique. Importance économique, systématique, ennemis naturels et méthodes de lutte . CIRAD/CTA 534 .
• Polaszek, A. & Khan, Z.R. ( 2001 ) Les plantes hôtes in: Polaszek, A. & Delvare, G. (Eds.), In: Les foreurs des tiges de céréales en Afrique. Importance économique, systématique, ennemis naturels et méthodes de lutte . CIRAD/CTA 534 .
• Polaszek, A. & Kimani-Njogu, S.W. ( 2001 ) Scelionidae. pp. 261-266 in: Polaszek, A. & Delvare, G. (Eds.), In: Les foreurs des tiges de céréales en Afrique. Importance économique, systématique, ennemis naturels et méthodes de lutte . CIRAD/CTA 534 .
• Polaszek, A., LaSalle, J. & Jongema, Y. ( 2001 ) Superfamille Chalcidoidea. pp. 195-208 in: Polaszek, A. & Delvare, G. (Eds.), In: Les foreurs des tiges de céréales en Afrique. Importance économique, systématique, ennemis naturels et méthodes de lutte . CIRAD/CTA 534 .
• Van den Berg, J., Nur, A.F. & Polaszek, A. ( 2001 ) Les pratiques culturales. pp. 335-351 in: Polaszek, A. & Delvare, G. (Eds.), In: Les foreurs des tiges de céréales en Afrique. Importance économique, systématique, ennemis naturels et méthodes de lutte . CIRAD/CTA 534 .

2000

• Heraty, J.M. & Polaszek, A. ( 2000 ) Morphometric analysis and descriptions of selected species in the Encarsia strenua group (Hymenoptera: Aphelinidae) Journal of Hymenoptera Research 9 : 142-169 . Journal of Hymenoptera Research
• LaSalle, J. & Polaszek, A. ( 2000 ) The presence of anterolateral abdominal glands in Euderomphale (Hymenoptera: Chalcidoidea: Eulophidae) Journal of Hymenoptera Research 9 : 427-429 . Journal of Hymenoptera Research
• Polaszek, A. & Chinwada, P. ( 2000 ) Dendrocerus rodhaini (Hymenoptera: Megaspilidae): a hyperparasitoid of the maize stem borer, Busseola fusca Fuller (Lepidoptera: Noctuidae) in Zimbabwe African Entomology 8(2) : 299-302 .
• Polaszek, A., & Prinsloo, G.L. ( 2000 ) The identity of Pteroptrix imitatrix (Fullaway) (Hymenoptera: Aphelinidae) Journal of Hymenoptera Research 9 : 320-323 . Journal of Hymenoptera Research
• Quicke, D.L.J. & Polaszek, A. ( 2000 ) A new genus, and first host records, for the Adeshini: parasitoids of hispine beetles (Braconidae: Braconinae; Coleoptera: Chrysomelidae) Journal of Hymenoptera Research 9 : 104-107 . Journal of Hymenoptera Research
• Viscarret, M.M., Botto, E.N. & Polaszek, A. ( 2000 ) Whiteflies (Hemiptera: Aleyrodidae) of economic importance and their natural enemies (Hymenoptera: Aphelinidae, Signiphoridae) in Argentina Revista Chilena Entomologia 26 : 5-11 .

1999

• Harris, K.M., Williams, C.T., Okhidievbie, O., LaSalle, J. & Polaszek, A. ( 1999 ) Description of a new species of Orseolia (Diptera: Cecidomyiidae) from Paspalum in West Africa, with notes on its parasitoids, ecology and relevance to natural biological control of the African rice gall midge, O. oryzivora Bulletin of Entomological Research 89 : 441-448 . 10.1017/S0007485399000577
• Martin, J.H. & Polaszek, A. ( 1999 ) A new genus of Neotropical whitefly, secreting blue-irridescent wax (Sternorrhyncha, Aleyrodidae, Aleurodicinae), and its parasitoids Journal of Natural History 33 : 1545-1559 . 10.1080/002229399299888
• Polaszek, A., Abd-Rabou, S & Huang, J. ( 1999 ) The Egyptian species of Encarsia (Hymenoptera: Aphelinidae) a preliminary review Zoologische Mededelingen, Leiden 73 : 131-163 .
• Polaszek, A., Riches, C. & Lenné, J.M. ( 1999 ) The effects of pest management strategies on biodiversity in agroecosystems. In: Wood, D. and Lenné, J.M. (Eds), In: Agrobiodiversity . CAB International 273-303 .

1998

• Delvare, G. & Polaszek, A. ( 1998 ) Hymenoptera: Introduction. In: Polaszek, A. (Ed.), In: African cereal stem borers: Economic importance, taxonomy, natural enemies and control . CAB International 123-130 .
• Evans, G.A. & Polaszek, A. ( 1998 ) The Encarsia cubensis species group (Hymenoptera: Aphelinidae) Proceedings of the Entomological Society of Washington 100 : 222-233 .
• Huang, J. & Polaszek, A. ( 1998 ) A revision of the Chinese species of Encarsia Foerster (Hymenoptera: Aphelinidae): parasitoids of whiteflies, scale insects and aphids (Homoptera: Aleyrodidae, Diaspididae, Aphidoidea) Journal of Natural History 32 : 1825-1966 . 10.1080/00222939800770911
• Poinar jr., G.O. & Polaszek, A. ( 1998 ) Nematoda, Fungi, Protozoa, Bacteria and Viruses. In: Polaszek, A. (Ed.), In: African cereal stem borers: Economic importance, taxonomy, natural enemies and control . CAB International 283-294 .
• Polaszek, A. ( 1998 ) Ceraphronidae. In: Polaszek, A. (Ed.), In: African cereal stem borers: Economic importance, taxonomy, natural enemies and control . CAB International 187-190 .
• Polaszek, A. ( 1998 ) Bethylidae. In: Polaszek, A. (Ed.), In: African cereal stem borers: Economic importance, taxonomy, natural enemies and control . CAB International 133-136 .
• Polaszek, A. ( 1998 ) Hymenoptera: Key to the families. In: Polaszek, A. (Ed.), In: African cereal stem borers: Economic importance, taxonomy, natural enemies and control . CAB International 131-132 .
• Polaszek, A. & Khan, Z.R. ( 1998 ) Host plants. In: Polaszek, A. (Ed.), In: African cereal stem borers: Economic importance, taxonomy, natural enemies and control . CAB International 3-10 .
• Polaszek, A. & Kimani-Njogu, S.W. ( 1998 ) Scelionidae. In: Polaszek, A. (Ed.), In: African cereal stem borers: Economic importance, taxonomy, natural enemies and control . CAB International 530 .
• Polaszek, A. (Ed.) ( 1998 ) African cereal stem borers: Economic importance, taxonomy, natural enemies and control . CAB International 530 .
• Polaszek, A., LaSalle, J. & Jongema, Y. ( 1998 ) Chalcidoidea. In: Polaszek, A., In: African cereal stem borers: Economic importance, taxonomy, natural enemies and control . CAB International 191-204 .
• Van den Berg, J., Nur, A.F. & Polaszek, A. ( 1998 ) Cultural control. In: Polaszek, A. (Ed.), In: African cereal stem borers: Economic importance, taxonomy, natural enemies and control . CAB International 530 .

1997

• Bonhoff, M.J., Overholt, W.A., Huis, A. van, & Polaszek, A. ( 1997 ) Natural enemies of cereal stemborers in east Africa: A review Insect Science and its Application 19 : 19-35 .
• Evans, G.A. & Polaszek, A. ( 1997 ) Additions to the Encarsia parasitoids (Hymenoptera: Aphelinidae) of the Bemisia tabaci-complex (Homoptera: Aleyrodidae) Bulletin of Entomological Research 87 : 563-571 .
• Khan, Z.R., Chiliswa, P., Ampong-Nyarko, K., Smart, L.E., Polaszek, A., Wandera, J., Mulaa, M.A. & Overholt, W.A. ( 1997 ) Utilisation of wild gramineous plants for management of cereal stemborers in Africa Insect Science and its Application 17 : 143-150 .
• LaSalle, J., Polaszek, A., Noyes, J.S. & Zolnerowich, G. ( 1997 ) A new whitefly parasitoid (Hymenoptera: Pteromalidae: Eunotinae), with comments on its placement, and implications for classification in Chalcidoidea with particular reference to the Eriaporinae (Hymenoptera: Aphelinidae) Systematic Entomology 22 : 131-150 . 10.1046/j.1365-3113.1997.d01-38.x
• Polaszek, A. ( 1997 ) An overview of African lepidopterous cereal stemborer parasitoids (Hymenoptera: Chrysidoidea, Ceraphronoidea, Chalcidoidea, Ichneumonoidea, Platygastroidea) Insect Science and its Application 17 : 13-18 .
• Polaszek, A. & Foerster, L.A. ( 1997 ) Telenomus cyamophylax sp. nov. (Hymenoptera: Scelionidae) attacking eggs of the velvetbean caterpillar, Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae) Anais da Sociedade Entomologica do Brasil 26 : 177-181 . 10.1590/S0301-80591997000100023

1996

• Achterberg, C. van, & Polaszek A. ( 1996 ) The parasites of cereal stem borers (Lepidoptera: Cossidae, Crambidae, Noctuidae, Pyralidae) in Africa, belonging to the family Braconidae (Hymenoptera: Ichneumonoidea) Zoologische Verhandlingen 304 : 1-123 .
• Huang J. & Polaszek, A. ( 1996 ) The species of Encarsiella Hayat (Hymenoptera: Aphelinidae) from China Journal of Natural History 30 : 1649-1659 . 10.1080/00222939600770971
• Hunter, M.S., Rose, M. & Polaszek, A. ( 1996 ) Divergent host relationships of males and females in the parasitoid Encarsia porteri (Hymenoptera: Aphelinidae) Annals of the Entomological Society of America 89 : 667-675 . Annals of the Entomological Society of America
• Kamarudin, N., Walker, A.K., Wahid, M.B., LaSalle, J. & Polaszek, A. ( 1996 ) Hymenopterous parasitoids associated with the bagworms Metisa plana and Mahasena corbetti (Lepidoptera: Psychidae) on Oil Palms in Peninsular Malaysia Bulletin of Entomological Research 86 : 423-439 .
• Polaszek, A. & Dessart, P. ( 1996 ) Taxonomic problems in the Aphanogmus hakonensis species complex (Hymenoptera: Ceraphronidae), common hyperparasitoids in biocontrol programmes against lepidopterous pests in the tropics Bulletin of Entomological Research 86 : 419-422 .
• Williams, T. & Polaszek, A. ( 1996 ) A re-examination of host relations in the Aphelinidae (Hymenoptera: Chalcidoidea) Biological Journal of the Linnaean Society 57 : 35-45 . 10.1111/j.1095-8312.1996.tb01694.x

1995

• Evans, G.A., Polaszek A. & Bennett F.D. ( 1995 ) The taxonomy of the Encarsia flavoscutellum species-group (Hymenoptera: Aphelinidae) parasitoids of Hormaphididae (Homoptera: Aphidoidea) Oriental Insects 29 : 33-45 .
• Polaszek, A., Stouthamer, R., Hunter, M.S., Rose, M., Ovruski, S.M., Frias, E. & Rojas, S.P. ( 1995 ) Heterotrophic parasitoids revisited: Preliminary observations on Encarsia porteri (Mercet) (Hymenoptera: Aphelinidae) Les Colloques de l'INRA 73 : 31-32 .

1994

• Mound, L.A., Martin, J.H. & Polaszek, A. ( 1994 ) The insect fauna of Selaginella (Pteridophyta: Lycopsida) with descriptions of three new species Journal of Natural History 28 : 1403-1415 . 10.1080/00222939400770691
• Polaszek, A. & LaSalle, J. ( 1994 ) The hyperparasitoids (Hymenoptera: Ceraphronidae, Encyrtidae, Eulophidae, Eurytomidae) of cereal stem borers in Africa (Lepidoptera: Noctuidae, Pyralidae) African Entomology 3 : 131-146 .

1993

• Bosque-Pérez, N.A., Ubeku, J.A. & Polaszek, ( 1993 ) Survey for parasites of Sesamia calamistis (Lepidoptera: Noctuidae) and Eldana saccharina (Lepidoptera: Pyralidae) in Southwestern Nigeria Entomophaga 39 (3/4) : 367-376 . 10.1007/BF02373042
• Polaszek, A. ( 1993 ) The identity of Neocales Risbec (Hymenoptera: Signiphoridae) Entomologische Berichten 53 : 99-102 .
• Polaszek, A. ( 1993 ) The architecture of insect societies. In: Rutten, J.A.G.M. & Semah, J. (Eds), In: The Third Exile; Explorations in the borderland of architecture, visual art and philosophy of science . Arti et Amicitiae : Amsterdam , 13-28 .
• Polaszek, A. & Krombein, K.V. ( 1993 ) The genera of Bethylinae (Hymenoptera: Chrysidoidea) Journal of Hymenoptera Research 3 : 91-105 .
• Polaszek, A., Fitton, M.G., Bianchi, G. & Huddleston, T. ( 1993 ) The parasitoids of the African white rice borer, Maliarpha separatella (Lepidoptera: Pyralidae) Bulletin of Entomological Research 84 : 65-89 .
• Polaszek, A., Ubeku, J.A. & Bosque-Perez, N.A. ( 1993 ) Taxonomy of the Telenomus busseolae species-complex (Hymenoptera: Scelionidae) egg parasitoids of cereal stem borers (Lepidoptera: Noctuidae, Pyralidae) Bulletin of Entomological Research 83 : 221-226 .

1992

• Hayat, M. & Polaszek, A. ( 1992 ) Encarsia aseta sp. nov. (Hymenoptera: Aphelinidae). A parasitoid of Dialeurolonga elongata Dozier (Homoptera: Aleyrodidae) from India Oriental Insects 26 : 107-109 .
• Polaszek, A. ( 1992 ) Cereal stem borers and their parasitoids in Africa Proceedings of the section Experimental and Applied Entomology of the Netherlands Entomological Society 3 : 70-71 .
• Polaszek, A. & Hayat, M. ( 1992 ) A revision of the genera Dirphys Howard and Encarsiella Hayat (Hymenoptera: Aphelinidae) Systematic Entomology 17 : 181-197 . 10.1111/j.1365-3113.1992.tb00329.x
• Polaszek, A., Evans, G.E. & Bennett, F.D. ( 1992 ) Encarsia parasitoids of Bemisia tabaci (Hymenoptera: Aphelinidae, Homoptera: Aleyrodidae) - a preliminary guide to identification Bulletin of Entomological Research 82 : 375-392 .

1991

• Joshi, R.C., Polaszek, A., Ofomata, V.C. & Ukwungwu, M.N. ( 1991 ) A parasitoid of stalk-eyed fly eggs in West Africa. International Rice Research Newsletter 16(5): 22 .
• Polaszek, A. ( 1991 ) Egg parasitism in the Aphelinidae (Hymenoptera: Chalcidoidea) with special reference to Centrodora and Encarsia species Bulletin of Entomological Research 81 : 97-106 .
• Polaszek, A. & Hayat, M. ( 1991 ) The Identity of Paulianaphelinus mariscusae Risbec (Hymenoptera: Aphelinidae) Bolletino del Laboratorio di Entomologia agraria "Filippo Silvestri" Portici 46 (1989): 21-24 .

1990

• Polaszek, A. & Hayat, M. ( 1990 ) Dirphys boswelli (Hymenoptera: Aphelinidae) an egg parasitoid of Plataspidae (Heteroptera) Journal of Natural History 24 : 1-5 . 10.1516/VK74-X01U-K825-360P
• Polaszek, A. & Kimani, S.W. ( 1990 ) Telenomus species (Hymenoptera: Scelionidae) attacking eggs of pyralid pests (Lepidoptera) in Africa: a review and guide to identification Bulletin of Entomological Research 80 : 57-71 .

1988

• Noyes, J.S. & Polaszek, A. ( 1988 ) Berlese or Balsam? Antenna 13: 2 .

1987

• Carter, C.I., Wood Baker, C.S.J. & Polaszek, A. ( 1987 ) Species, host plants and distribution of aphids occurring in Ireland Irish Naturalist's Journal 22 : 265-284 . Irish Naturalist's Journal
• Eastop, V.F. & Polaszek, A. ( 1987 ) Sub-siphuncular wax gland plates in aphid oviparae. Pages 239-242 in: Holman, J., Pelikan, J., Dixon, A.F.G. and Weismann, L. (eds) Population Structure, Genetics and Taxonomy of Aphids and Thysanoptera. Proceedings of the International Symposia held at Smolenice, Czechoslovakia, September 9 14, 1985. SPD Academic Publishing: The Hague. 542 pp. .
• Polaszek, A. ( 1987 ) Chrysididae. A summary of records of chrysidid parasitoids of South east Asian Limacodidae. In: M.J.W. Cock, H.C.J. Godfray and J.D. Holloway (eds), In: Slug and nettle caterpillars. The biology, taxonomy and control of the Limacodidae of economic importance on palms in South east Asia . CABI : Wallingford , 185-186 .
• Polaszek, A. ( 1987 ) Studies in comparative anatomy of aphid reproductive systems. Pages 261-266 in: Holman, J., Pelikan, J., Dixon, A.F.G. and Weismann, L. (eds) Population Structure, Genetics and Taxonomy of Aphids and Thysanoptera. Proceedings of the International Symposia held at Smolenice, Czechoslovakia, September 9-14, 1985. SPD Academic Publishing: The Hague. 542 pp .

1986

• Polaszek, A. ( 1986 ) Aestivating sexual morphs in the aphid genus Thelaxes (Insecta: Homoptera) Journal of Natural History 20 : 1333-1338 . 10.1080/00222938600770891
• Polaszek, A. ( 1986 ) The effects of two species of hymenopterous parasitoid on the reproductive system of the pea aphid Acyrthosiphon pisum. Entomologia Experimentalis et Applicata 40 : 285 292 . 10.1007/BF00293712

1983

• Polaszek, A. & Cotman, H.E ( 1983 ) An aphid new to Europe from Robinia pseudacacia L. in London. Entomologist's Monthly Magazine 119: 251-252 .