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Systematics and ecology of the Nearctic species of Neophyllomyza (Diptera: Milichiidae)

Published online by Cambridge University Press:  02 April 2012

Kristen Brochu  and
Terry A. Wheeler
Kristen Brochu
Affiliation:
Department of Natural Resource Sciences, McGill University, Macdonald Campus, Sainte-Anne-de-Bellevue, Quebec, Canada H9X 3V9
Terry A. Wheeler*
Affiliation:
Department of Natural Resource Sciences, McGill University, Macdonald Campus, Sainte-Anne-de-Bellevue, Quebec, Canada H9X 3V9
*
1Corresponding author (e-mail: [email protected]).
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Abstract

The Nearctic species of Neophyllomyza Melander are revised and descriptions, illustrations, and an identification key are provided for the two included species, N. quadricornis Melander and N. gaultin. sp. Large numbers of adults of both species were collected in emergence traps on decaying logs of sugar maple (Acer saccharum Marsh. (Aceraceae)) and American beech (Fagus grandifolia Ehrh. (Fagaceae)) in eastern Canada, indicating that the larvae of both species are saproxylic, although their exact food source is unknown. Although the two species are sympatric over much of their range and apparently use the same resources for larval development, their habits differ: N. quadricornis was collected from logs in both the early- and the advanced-decay stage from late May until September, with a peak of emergence in late June, whereas N. gaulti was reared almost exclusively from logs in the advanced-decay stage and from mid-July to mid-August. This suggests that N. gaulti is more specialized in its larval habits, which may reduce competition between the two species.

Résumé

Nous révisons les espèces néarctiques de Neophyllomyza Melander et présentons des descriptions, des illustrations et une clef d’identification des deux espèces connues, N. quadricornis Melander et N. gaultin. sp. Des pièges d’émergence sur des troncs en décomposition d’érable à sucre (Acer saccharum Marsh. (Aceraceae)) et de hêtre à grandes feuilles (Fagus grandifolia Ehrh. (Fagaceae)) dans l’est du Canada ont récolté de grands nombres d’adultes des deux espèces, ce qui indique que les larves des deux espèces sont saproxyliques, quoique leur source exacte de nourriture reste inconnue. Bien que les deux espèces soient sympatriques sur une grande partie de leur aire de répartition et qu’elles utilisent apparemment les mêmes sources de nourriture pour leur développement larvaire, leurs habitudes sont différentes: N. quadricornis se retrouve dans les troncs en état précoce et avancé de décomposition de la fin de mai jusqu’en septembre, avec un maximum d’émergence en fin de juin, alors que N. gaulti provient presque exclusivement de troncs en état avancé de décomposition de la mi-juillet à la mi-août. Cela laisse croire que N. gaulti possède des habitudes larvaires plus spécialisées, ce qui pourrait réduire la compétition entre les deux espèces.

[Traduit par la Rédaction]

Type
Articles
Information
The Canadian Entomologist , Volume 141 , Issue 2 , April 2009 , pp. 103 - 111
Copyright
Copyright © Entomological Society of Canada 2009

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References

Brake, I. 2000. Phylogenetic systematics of the Milichiidae (Diptera, Schizophora). Insect Systematics and Evolution Supplement, 57: 3–120.Google Scholar
Brake, I. 2007. Madiza nitens (Melander, 1913), new combination (Diptera, Milichiidae). Proceedings of the Entomological Society of Washington, 109: 798–800.Google Scholar
Eisner, T., Eisner, M., and Deyrup, M. 1991. Chemical attraction of kleptoparasitic flies to heteropteran insects caught by orb-weaving spiders. Proceedings of the National Academy of Sciences of the United States of America, 88: 8194–8197.CrossRefGoogle ScholarPubMed
Kovalev, V.G. 1976. Faunistic and ecological material on flies of the genus Lonchaea (Diptera, Lonchaeidae) from Tuva. Entomologicheskoe Obozrenie, 55: 934–945. [In Russian.]Google Scholar
Malloch, J.R. 1913. A synopsis of the genera of Agromyzidae, with descriptions of new genera and species. Proceedings of the United States National Museum, 46: 127–154.CrossRefGoogle Scholar
Melander, A.L. 1913. A synopsis of the dipterous groups Agromyzinae, Milichiinae, Ochthiphilinae, and Geomyzinae. Journal of the New York Entomological Society, 21: 219–273, 283–300.Google Scholar
Økland, B. 1998. A review of species and new rearing habitats of the family Milichiidae (Diptera) in Norway. Fauna norvegica, Series B, 45: 121–123.Google Scholar
Rotheray, G.E., and Robertson, D. 1998. Breeding habits and early stages of seven saproxylic acalypterates (Diptera). Dipterists Digest, 5: 96–107.Google Scholar
Selby, R.D. 2005. Diversity of saproxylic Cecidomyiidae (Diptera) in a Quebec hardwood forest. M.Sc. thesis, McGill University, Montréal, Quebec.Google Scholar
Sivinski, J., and Stowe, M. 1980. A kleptoparasitic cecidomyiid and other flies associated with spiders. Psyche (Cambridge), 87: 337–348.CrossRefGoogle Scholar
Sivinski, J., Marshall, S., and Petersson, E. 1999. Kleptoparasitism and phoresy in the Diptera. Florida Entomologist, 82: 179–197.CrossRefGoogle Scholar
Villeneuve, J. 1920. Vichyia acyglossa, espèce et genre nouveaux de la famille des Milichiinae (Dipt. Muscidae). Bulletin de la Société entomologique de France, 1920: 69–70.CrossRefGoogle Scholar