Abstract
Two female Thraxan sp. (Diptera: Bombyliidae: Anthracinae) emerged from parasitised Pison simillimum Smith (Hymenoptera: Crabronidae) larvae found inside a Sceliphron formosum Smith (Hymenoptera: Sphecidae) mud wasps nest. Thraxan sp. larvae are endoparasites of P. simillimum larvae. The endoparasite pupates inside the host larva, kills it, and emerges free of the host body. We describe and illustrate the pupal exuviae of the newly found species and two known species, T. luteus Yeates & Lambkin and T. misatulus Yeates & Lambkin, and we compare these pupal exuviae to those of Anthrax Scopoli.
References
Arndt, E. & Costa, C. (2001) Parasitism of neotropical tiger beetles (Coleoptera: Carabidae: Cicindelinae) by Anthrax (Diptera: Bombyliidae). Studies on Neotropical Fauna and Environment, 36 (1), 63–66.
https://doi.org/10.1076/snfe.36.1.63.8885
Bohart, R.M. & Menke, A.S. (1976) Sphecid wasps of the world: a generic revision. University of California Press, Berkeley, 695 pp.
Cunha, A.M. & Lamas, C.J. (2004) Description of five Anthrax Scopoli puparia (Diptera, Bombyliidae, Anthracinae, Anthracini). Zootaxa, 741 (1), 1–14.
https://doi.org/10.11646/zootaxa.741.1.1
Dennis, D.S. & Barnes, J.K. (2013) Pupal cases of three Nearctic species of Machimus (Diptera: Asilidae). Zootaxa, 3683 (5), 561–570.
https://doi.org/10.11646/zootaxa.3683.5.4
Elliot, M.G. (2007) Annotated catalogue of the Pompilidae (Hymenoptera) of Australia. Zootaxa, 1428, 1–83.
Evenhuis, N.L. & Greathead, D.J. (2015) World Catalog of Bee Flies (Diptera Bombyliidae). Revised September 2015. Available from: http://hbs.bishopmuseum.org/bombcat/bombcat-revised2015.pdf (accessed 17 April 2019)
Kozub, D., Khmelik, V., Shapoval, J., Chentsov, V., Yatsenko, S., Litovchenko, B. & Starikh, V. (2000) Helicon Focus 6.7.1 Pro. Helicon Soft Ltd, Kharkiv. [software]
Lamas, C.J.E. (2006) A new species of Anthrax Scopoli, 1763 from Brazil, with description of its puparium (Diptera, Bombyliidae, Anthracinae, Anthracini). Zootaxa, 1378, 61–68.
Lamas, C.J.E. & Couri, M.S. (1999) Description of the pupae of Anthrax oedipus oedipus Fabricius and Anthrax oedipus aquilus Marston (Diptera, Bombyliidae, Anthracinae). Revista Brasileira de Zoologia, 16 (4), 977–980.
https://doi.org/10.1590/S0101-81751999000400005
Li, X., Rodrigues, P.F.M., Lamas, C.J.E. & Yeates, D.K. (2018) A Review of the Australian Species of Thevenetimyia Bigot, 1875 (Bombyliidae, Bombyliinae, Eclimini), with Description of Four New Species and the Pupal Case of T. longipalpis (Hardy). Records of the Australian Museum, 70 (3), 331–375.
https://doi.org/10.3853/j.2201-4349.70.2018.1678
Marston, N.L. (1971) Taxonomic study of the known pupae of the genus Anthrax (Diptera: Bombyliidae) in North and South America. Smithsonian Contributions to Zoology Number 100. Smithsonian Institution Press, Washington, 18 pp.
Naumann, I.D. (1991) 42 Hymenoptera. In: Naumann, I.D., Came, P.B., Lawrence, J.F., Nielsen, E.S., Spradbery, J.P., Taylor, R.W., Whitten, M.J. & Littlejohn, M.J. (Eds.), The Insects of Australia volume 2. Melbourne University Press, Melbourne, pp. 910–1071.
Naumann, I.D. (1983) 5. The biology of mud nesting Hymenoptera (and their associates) and Isoptera in rock shelters of the Kakadu region, Northern territory. In: Gillespie, D. & Chaloupka, G. (Eds.), The rock art sites of Kakadu National Park—some preliminary research findings for their conservation and management. Special Publications. Australian National Parks and Wildlife Service, Canberra, pp. 127–190.
Pulawski, W.J. (2018) A revision of the wasp genus Pison Jurine, 1808 of Australia, New Guinea, New Zealand, and Pacific Islands (Hymenoptera: Crabronidae). Proceedings of the California Academy of Sciences, Series 4, 65 (Supplement III), 1–584.
Sheldon, J.K. (1968) The nesting behavior and larval morphology of Pison koreense (Radoszkowski) (Hymenoptera: Sphecidae). Psyche: A journal of Entomology, 75 (2), 107–117.
https://doi.org/10.1155/1968/92670
Yeates, D.K. & Greathead, D. (1997) The evolutionary pattern of host use in the Bombyliidae (Diptera): a diverse family of parasitoid flies. Biological Journal of the Linnean Society, 60 (2), 149–185.
https://doi.org/10.1111/j.1095-8312.1997.tb01490.x
Yeates, D.K. & Lambkin, C.L. (1998) Cryptic species diversity and character congruence: review of the tribe Anthracini (Diptera: Bombyliidae) in Australia. Invertebrate Systematics, 12 (6), 977–1078.
https://doi.org/10.1071/IT97019