Abstract
The type species of the genus Acidiella Hendel is A. longipennis Hendel, which is known as a widely distributed species in South East Asia. Specimens of A. longipennis are rarely found in insect collections, but I was able to examine a number of Myanmar specimens collected by R. Malaise during the Swedish Expedition in 1934, and reported as A. longipennis by M. Hering in 1938. As a result, three related species were sorted out from these specimens. They look very much alike except for the dorsal abdominal patterns (difficult to see in dried specimens) and postabdominal structures. I here provide detailed descriptions of and a key to A. longipennis, A. spinipenis, sp. nov., and A. kambaitiensis, sp. nov. They are here defined as the A. longipennis species group based on a single synapomorphy: vesica of glans ventrally with 7–9 tiny spines. This is a unique characteristic never found in any other species of the tribe Trypetini as well as the family Tephritidae. I am providing this information as a starting point to refine the currently confused concept of the genus Acidiella.References
Chen, S.H. (1948) Notes on Chinese Trypetinae. Sinensia (1947), 18, 69–123.
Han, H.-Y. (1992) Classification of the tribe Trypetini (Diptera: Tephritidae: Trypetinae). Dissertation, Pennsylvania State University, University Park.
Han, H.-Y. (1998) A list of the reported host plants of the tribe Trypetini (Diptera: Tephritidae). Korean Journal of Entomology, 28, 355–368.
Han, H.-Y. (1999) Phylogeny and behavior of flies in the tribe Trypetini (Trypetinae). In: Aluja, M. & Norrbom, A.L. (Eds.), Fruit Flies (Tephritidae): Phylogeny and Evolution of Behavior. CRC Press, Boca Raton, Florida, pp. 253–297.
Han, H.-Y. & Ro, K.-E. (2002) Molecular systematics of Tephritidae (Insecta: Diptera): testing phylogenetic position of Korean Acidiella spp. (Trypetini) using mitochondrial 16S rDNA sequences. Korean Journal of Biological Sciences, 6, 13–18.
Hardy, D.E. (1970) Tephritidae (Diptera) collected by the Noona Dan Expedition in the Philippine and Bismarck islands. Entomologiske meddeleser, 38, 71–136.
Hardy, D.E. (1977) Family Tephritidae (Trypetidae, Trupaneidae). In: Delfinado, M.D. & Hardy, D.E. (Eds.), A Catalog of the Diptera of the Oriental Region, Volume III, Suborder Cyclorrhapha, (excluding Division Aschiza).University of Hawaii Press, Honolulu, pp. 44–134.
Hardy, D.E. (1987) The Trypetini, Aciurini and Ceratitini of Indonesia, New Guinea and adjacent islands of the Bismarcks and Solomons (Diptera: Tephritidae: Trypetinae). Entomography, 5, 247–374.
Hendel, F.G. (1914) Die Gattungen der Bohrfliegen. (Analytische Ubersicht aller bisher bekannten Gattungen der Tephritinae).Wiener Entomologischen Zeitung, 33, 73–98.
Hendel, F.G. (1915) H. Sauter’s Formosa-Ausbeute. Tephritinae. Annales Musei Nationalis Hungarici, 13, 424–467.
Hering, M. (1938) Entomological results from the Swedish Expedition 1934 to Burma and British India. Diptera: Fam. Trypetidae. [23. Beitrag zur Kenntnis der Trypetidae]. Arkiv för zoologi, 30A, 1–56.
Ito, S. (1965) Einige Trypetiden oder Fruchtfliegen aus Formosa gesammelten von Herren Prof. Dr. T. Shirozu und M. Wakabayashi. Special Bulletin of Lepidopterological Societyof Japan, 1, 197–198.
Ito, S. (1984) Lieferung 4. Die japanischen Bohrfliegen. Maruzen Co., Ltd., Osaka, 145–192.
Ito, S. (1988) Note and illustrations on some Formosan fruit flies. Transactions of Essa Entomological Society of Niigata, 66, 36–38 [in Japanese].
Kandybina, M. N. (1966) Contribution to the study of fruit flies (Tephritidae, Diptera) in the Far East of the USSR. Entomological Review, 45, 383–388 [English translation of Entomologicheskoe Obozrenie, 45, 677–687 (1966)].
Kapoor, V.C., Hardy, D.E., Agarwal, M.L. & Grewal, J.S. (1980) Fruit fly (Diptera: Tephritidae) systematics of the Indian subcontinent. Jullunder, India: Export India, 113 pp.
Korneyev, V.A. (1998) New data and nomenclatural notes on the Tephritidae (Diptera) of Far East Russia. II. Journal of Ukrainian Entomological Society (1997), 3, 5–48.
Munro, H.K. (1935) Observations and comments on the Trypetidae (Dipt.) of Formosa. Arbeiten über physiologische und angrewandte Entomologie aus Berlin-Dahlem, 2, 253–271.
Norrbom, A.L., Carroll, L.E., Thompson, F.C., White, I.M. & Freidberg, A. (1999) Systematic database of names. In: Thompson, F. C. (Ed.), Fruit Fly Expert Identification System and Systematic Information Database. Myia (1998) 9, pp. 65–251, & Diptera Data Dissemination Disk (CD-ROM) (1998) 1.
Shiraki, T. (1933) A systematic study of Trypetidae in the Japanese Empire. Memoirs of the Faculty of Science and Agriculture, Taihoku Imperial University, 8 (Entomology No. 2), 1–509.
Wang, X.-J. (1998) The fruit flies (Diptera: Tephritidae) of the East Asia Region. Acta Zootaxonomica Sinica (1996), 21 (Suppl.), 1–419.
White, I.M., Headrick, D.H., Norrbom, A.L. & Carroll, L.E. (1999) Glossary. In: Aluja, M. & Norrbom, A.L. (Eds.), Fruit Flies (Tephritidae): Phylogeny and Evolution of Behavior. CRC Press, Boca Raton, Florida, pp. 881–924.