Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-26T04:39:46.419Z Has data issue: false hasContentIssue false
  • English
  • Français

The New World genera of Parathalassiinae (Diptera: Empidoidea: Dolichopodidae s.l.), with new species of Thalassophorus and Eothalassius

Published online by Cambridge University Press:  07 September 2012

Scott E. Brooks  and
Jeffrey M. Cumming
Scott E. Brooks*
Affiliation:
Invertebrate Biodiversity, Agriculture and Agri-Food Canada, K.W. Neat by Building, Central Experimental Farm, 960 Carling Avenue, Ottawa, Ontario, Canada K1A 0C6
Jeffrey M. Cumming
Affiliation:
Invertebrate Biodiversity, Agriculture and Agri-Food Canada, K.W. Neat by Building, Central Experimental Farm, 960 Carling Avenue, Ottawa, Ontario, Canada K1A 0C6
*
1Corresponding author (e-mail: [email protected]).
Get access Rights & Permissions [Opens in a new window]

Abstract

The parathalassine genera Thalassophorus Saigusa, Eothalassius Shamshev and Grootaert, and Chimerothalassius Shamshev and Grootaert are recorded from the New World for the first time. Thalassophorus arnaudi Brooks and Cumming sp. nov. is described from specimens collected at coastal localities in British Columbia, Oregon, and California, and represents the second known species in the genus, the type species being T. spinipennis Saigusa, known only from Rishiri Island in Hokkaido Prefecture, Japan. Detailed illustrations of the male genitalia of T. spinipennis are provided. Eothalassius borkenti Cumming and Brooks sp. nov. is described from specimens collected along the Pacific coast of Costa Rica, bringing the total number of described species of this former Southeast Asian genus to three, with one probable additional described species in the Mediterranean region. The genus Chimerothalassius, which was previously known from a single New Zealand species, is recorded from the island of Dominica, based on a female specimen plus a slide-mounted wing of an undescribed species. A new undescribed parathalassiine genus is also recorded from Chile, based on limited material of two undescribed species. A key to the six genera of Parathalassiinae in the New World, including Parathalassius Mik and Microphorella Becker, is given, as are some preliminary remarks on the limits and phylogenetic relationships of the parathalassiine genera.

Résumé

On mentionne pour la première fois la présence des genres de Parathalassiinae Thalassophorus Saigusa, Eothalassius Shamshev et Grootaert et Chimerothalassius Shamshev et Grootaert dans le Nouveau Monde. On décrit Thalassophorus arnaudi Brooks et Cumming sp. nov. à partir de spécimens récoltés dans des localités côtières en Colombie-Britannique, en Oregon et en Californie, laquelle représente la deuxième espèce du genre. L'espèce type, T. spinipennis Saigusa, est connu uniquement de l'île Rishiri dans la préfecture d'Hokkaido, au Japon. Les génitalia mâles de T. spinipennis sont illustrés en détail. On décrit Eothalassius borkenti Cumming et Brooks sp. nov. à partir de spécimens récoltés le long de la côte pacifique du Costa Rica. Auparavant restreint au Sud-Est asiatique, ce genre contient maintenant trois espèces, avec probablement une espèce additionnelle dans la région méditerranéenne. Le genre Chimerothalassius, auparavant représenté que par une espèce de Nouvelle-Zélande, est ici repertorié de l'île de la Dominique à partir d'un spécimen femelle et d'une aile montée sur lame d'une espèce non décrite. Un nouveau genre de Parathalassiinae est aussi répertorié du Chili, d'après un nombre limité de spécimens de deux espèces non décrites. On présente une clé d'identification des six genres de Parathalassiinae du Nouveau Monde, incluant Parathalassius Mik et Microphorella Becker, ainsi que quelques remarques préliminaires sur le concept et les relations phylogénétiques des genres de Parathalassiinae.

Type
Research Article
Information
The Canadian Entomologist , Volume 143 , Issue 5 , September 2011 , pp. 423 - 446
Copyright
Copyright © Entomological Society of Canada 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Brooks, S.E Cumming, J.M. 2010. What's new in New World Parathalassiinae (Diptera: Dolichopodidae). In Abstract Volume of the 7th International Congress of Dipterology,San José, Costa Rica. p. 51.Google Scholar
Cranston, P.S. 2005. Biogeographical patterns in the evolution of Diptera. In The evolutionary biology of flies. Edited by Yeates, D.K. and Wiegmann, B.M.. Columbia University Press, New York. pp. 274–311.Google Scholar
Cumming, J.M. Brooks, S.E. 2002. Electrophorella, a new genus of parathalassiine flies from Baltic amber, with a cladistic analysis of the Microphorinae+Dolichopodidae lineage (Diptera: Empidoidea). Studia dipterologica, 9: 41–54.Google Scholar
Cumming, J.M Brooks, S.E. 2006. Generic limits within the Microphorella Becker group (Diptera: Dolichopodidae s. lat.; Parathalassiinae). In Abstract Volume of the 6th International Congress of DipterologyFukuoka,Japan. p. 52.Google Scholar
Cumming, J.M Sinclair, B.J. 2009. Empididae (dance flies, balloon flies, predaceous flies), In Manual of Central American Diptera. Vol. 1. Edited by Brown, B.V., Borkent, A., Cumming, J.M., Wood, D.M., and Zumbado, M.. NRC Research Press, Ottawa, Ontario. pp. 653–670.Google Scholar
Cumming, J.M Wood, D.M. 2009. Adult morphology and terminology, In Manual of Central American Diptera. Vol. 1. Edited by Brown, B.V., Borkent, A., Cumming, J.M., Wood, D.M., and Zumbado, M.. NRC Research Press, Ottawa, Ontario. pp. 9–50.Google Scholar
Gatt, P. 2003. New species and records of Microphorella Becker (Diptera: Empidoidea, Dolichopodidae) from the Mediterranean region. Revue Suisse de Zoologie, 110: 669–684.CrossRefGoogle Scholar
Kirk-Spriggs, A.H McGregor, G. 2008. Disjunctions in the Diptera (Insecta) fauna of the Mediterranean Province and southern Africa and a discussion of biogeographical considerations. Transactions of the Royal Society of South Africa, 64: 32–52. doi: 10.1080/00359190909519236.CrossRefGoogle Scholar
McAlpine, J.F. 1981. Morphology and terminology — adults. In Manual of Nearctic Diptera. Vol. 1. Coordinated by J.F. McAlpine, B.V. Peterson, G.E. Shewell, H.J. Teskey, J.R. Vockeroth, and D.M. Wood. Agriculture Canada Monograph No. 27. pp. 9–63.Google Scholar
Saigusa, T. 1986. New genera of Empididae (Diptera) from eastern Asia. Sieboldia, 5: 97–118.Google Scholar
Saigusa, T. 2006. Homology of wing venation of Diptera. Unpublished handout distributed at the 6th International Congress of Dipterology,Fukuoka,Japan.Google Scholar
Shamshev, I.V. Grootaert, P. 2002. A new genus of Microphorinae (Diptera: Empidoidea) from New Zealand. Belgian Journal of Entomology, 4: 129–144.Google Scholar
Shamshev, I.V. Grootaert, P. 2004. Descriptions of four new species of the genus Microphorella Becker (Diptera: Empidoidea, Microphoridae, Parathalassiini) from Southeast Asia and New Guinea, with notes on the relationships within the genus. The Raffles Bulletin of Zoology, 52: 45–58.Google Scholar
Shamshev, I.V. Grootaert, P. 2005. Eothalassius, a new genus of parathalassiine flies (Diptera: Empidoidea: Dolichopodidae) from Southeast Asia and Papua New Guinea. European Journal of Entomology, 102: 107–118.CrossRefGoogle Scholar
Sinclair, B.J. Cumming, J.M. 2006. The morphology, higher-level phylogeny and classification of the Empidoidea (Diptera). Zootaxa, 1180: 1–172.CrossRefGoogle Scholar
Sinclair, B.J Saigusa, T. 2002. A new species of the seepage midge genus Trichothaumalea Edwards from Japan (Diptera: Thaumaleidae). Insect Systematics & Evolution, 33: 175–184. doi: 10.1163/187631202X00127.Google Scholar
Sinclair, B.J Brooks, S.E Cumming, J.M Coovert, G.A. Revision of the Nearctic species of Heleodromia (Diptera: Empidoidea: Brachystomatidae). 2011. The Canadian Entomologist, 143. In press.CrossRefGoogle Scholar
Steyskal, G.C Knutson, L.V. 1981. Empididae. In Manual of Nearctic Diptera. Vol. 1. Coordinated by J.F. McAlpine, B.V. Peterson, G.E. Shewell, H.J. Teskey, J.R. Vockeroth, and D.M. Wood. Agriculture Canada Monograph No. 27. pp. 607–624.Google Scholar
Stuckenberg, B.R. 1999. Antennal evolution in the Brachycera (Diptera), with a reassessment of terminology relating to the flagellum. Studia dipterologica, 6: 33–48.Google Scholar
Ulrich, H. 1991. Two new genera of parathalassiine-like flies from South Africa (Diptera: Empidoidea). Bonner zoologische Beiträge, 42: 187–216.Google Scholar
Yang, D Zhang, K Yao, G Zhang, J. 2007. World catalog of Empididae (Insecta: Diptera). China Agricultural University Press, Beijing, China.Google Scholar