Abstract
The genus Bilyjomyia is erected for Apsectrotanypus algens (Coquillett, 1902) from western North America and B. fontana n. sp. from Japan. A generic diagnosis and a description are given for all life stages. Bilyjomyia algens is redescribed. All life stages of Bilyjomyia fontana are described and figured. The new genus shows affinities to Macropelopia Thienemann and Bethbilbeckia Fittkau et Murray in the immature stages. Bilyjomyia can be distinguished from all other known Macropelopiini by the following features: the reduced setation of T.IX and the restriction of these setae to the tergal posterior edge in the adult male; the aeropyles of the thoracic horn in the pupa; the labral sclerite and the position and form of the ventral cephalic setae in the larva. The distribution of Bilyjomyia indicates dispersal across the Bering Land Bridge, a pattern known in some other genera of Chironomidae and other orders of insects.References
Cheng, M. & Wang, X. (2006) Psectrotanypus Kieffer (Diptera: Chironomidae: Tanypodinae) from China. Zootaxa, 1128, 49–56.
Coquillett, D.W. (1902) New Diptera from North America. Proceedings of the United States National Museum, 25, 83–126.
De Pinho, L.C., Mendes, H.F. & Andersen, T. (2009) A review of Skutzia Reiss, 1985, with the description of three new species (Diptera: Chironomidae: Chironominae). Journal of the North American Benthological Society, 28(1), 196–206.
Fittkau, E.J. & Murray, D.A. (1986) The pupae of Tanypodinae (Diptera: Chironomidae) of the Holarctic Region - Keys and diagnoses. Entomologica scandinavica, Supplement, 28, 31–113.
Fittkau, E.J. & Roback, S.S. (1983) The larvae of Tanypodinae (Diptera: Chironomidae) of the Holarctic Region - Keys and diagnoses. Entomologica scandinavica, Supplement, 19, 33–110.
Horne, P.A. & Pettigrove, V. (1989) A new record of Cnephia umbratorum (Tonnoir) (Diptera: Simuliidae) and Apsectrotanypus pallipes (Freeman) comb. n. (Diptera: Chironomidae) from the Otway Ranges, Victoria. Australian Entomological Magazine, 16, 21–26.
Johannsen, O.A. (1905) Aquatic nematocerous Diptera II. Chironomidae. In: Needham, J.G., Morton, K.J. & Johannsen, O.A. (Eds.), May flies and midges of New York. New York States Museum Bulletin, 86, 76–331.
Kieffer, J.J. (1906) Diptera Fam. Chironomidae. In: Wytsman, P. (Ed.), Genera insectorum, 42, 1–78.
Kowalyk, H.E. (1985) The larval cephalic setae in the Tanypodinae (Diptera: Chironomidae) and their importance in generic determinations. Canadian Entomologist, 117, 67–106.
Mendes, H.F., Andersen, T. & Sæther, O.A. (2004) A review of Antillocladius Sæther, 1981; Compterosmittia Sæther, 1981 and Litocladius new genus (Chironomidae, Orthocladiinae). Zootaxa, 5, 1–82.
Murray, D.A. & Fittkau, E.J. (1989) The adult males of Tanypodinae (Diptera: Chironomidae) of the Holarctic Region - Keys and diagnoses. Entomologica scandinavica, Supplement, 34, 37–123.
Niitsuma, H. (2003) First record of Brundiniella (Insecta: Diptera; Chironomidae) from the Palaearctic Region, with the description of a new species. Species Diversity, 8, 293–300.
Niitsuma, H. (2004) Description of Apsectrotanypus yoshimurai (Diptera, Chironomidae), with reference to the immature forms. Japanese Journal of Systematic Entomology, 10, 215–222.
Niitsuma, H. (2005) Taxonomy and distribution of Alotanypus kuroberobustus comb. nov. (Insecta: Diptera: Chironomidae) from the Palaearctic Region. Species Diversity, 10, 135–144.
Niitsuma, H. & Makarchenko, E.A. (1997) The first record of Compteromesa Sæther (Diptera, Chironomidae) from the Palaearctic Region, with description of a new species. Japanese Journal of Entomology, 65, 612–620.
Oliver, D.R., Dillon, M.E. & Cranston, P.S. (1990) A Catalog of Nearctic Chironomidae. Research Branch, Agriculture Canada, Publication 1857/B, 89 pp.
Peters, W.L. (1988) Origins of the North American Ephemeroptera fauna, especially the Leptophlebiidae. Memoirs of the Entomological Society of Canada, 144, 13–24.
Roback, S.S. (1971) The adults of the subfamily Tanypodinae (= Pelopiinae) in North America (Diptera: Chironomidae). Monographs of the Academy of Natural Sciences of Philadelphia, 17, 1–410.
Roback, S.S. (1978) The immature chironomids of the eastern United States III. Tanypodinae - Anatopyniini, Macropelopiini, and Natarsiini. Proceedings of the Academy of Natural Sciences of Philadelphia, 129, 151–202.
Roback, S.S. (1984) Tanypodinae (Diptera: Chironomidae) from Afognak and Kodiak Islands, Alaska. Proceedings of the Academy of Natural Sciences of Philadelphia, 136, 12–23.
Sæther, O.A. (1977) Female genitalia in Chironomidae and other Nematocera: morphology, phylogenies, keys. Bulletin of the Fisheries Research Board of Canada, 197, 1–209.
Sæther, O.A. (1980) Glossary of chironomid morphology terminology (Diptera: Chironomidae). Entomologica scandinavica, Supplement, 14, 1–51.
Sæther, O.A. (2000) Zoogeographical patterns in Chironomidae (Diptera). Verhandlungen der Internationalen Vereinigung fur theoretische und angewandte Limnologie, 27, 290–302.
Schmid, F. (1970) Le genre Rhyacophila et la famille des Rhyacophilidae (Trichoptera). Memoirs of the Entomological Society of Canada, 121, 1–115.
Stewart, K.W. & Stark, B.P. (2002) Nymphs of North American Stonefly genera (Plecoptera). 2nd ed. The Caddis Press, Columbus, Ohio, 510 pp.
Sublette, J.E. (1964) Chironomid midges of California II. Tanypodinae, Podonominae, and Diamesinae. Proceedings of the United States National Museum, 115, 85–135.
Sublette, J.E. & Sublette, M.F. (1965) Family Chironomidae (Tendipedidae). In: Stone, A., Sabrosky, C.W., Wirth, W.W., Foote, R.H. & Coulson, J.R. (Eds.), A Catalog of the Diptera of America North of Mexico. United States Department of Agriculture, Agriculture Handbook No. 276, pp 142–181.
Walley, G.S. (1928) The genus Tanypus in Canada, with a key to the North American species. Annals Entomological Society of America, 21, 58–593.
Watson, C.N. (1998) Description of the larva of Apsectrotanypus algens (Coquillett) with a review of the generic placement of the species (Diptera: Chironomidae). Journal of the Kansas Entomological Society, 71, 241–246.