Abstract
Several collections of adults of the caddisfly order Trichoptera were studied from Timor-Leste, the nation-state comprising the eastern region of the island of Timor. The specimens represent ten families: Hydrobiosidae (2 species), Glossosomatidae (1 species), Hydroptilidae (3 species), Philopotamidae (5 species), Hydropsychidae (3 species), Polycentropodidae (1 species), Psychomyiidae (3 species), Xiphocentronidae (1 species), Lepidostomatidae (1 species), Leptoceridae (3 species). Among the 24 species listed, 16 were identified as established Southeast Asian species. Among these are two very widespread species, one extending further east to New Guinea, northern Australia, and New Caledonia and another that was described from Fiji. An additional seven species are newly described here: Ulmerochorema hatubuilico sp. nov., Hydroptila bellisi sp. nov. and H. aileuensis sp. nov., Chimarra lawaliu sp. nov., C. multidentata sp. nov., C. sameana sp. nov. and C. timorensis sp. nov. Hitherto, the genus Ulmerochorema Mosely was believed to be an Australian endemic. A xiphocentronid specimen could be identified to genus Drepanocentron only.
References
ABRS (2021) Australian Faunal Directory. Trichoptera. Australian Biological Resources Study, Canberra. Available from: https://biodiversity.org.au/afd/taxa/TRICHOPTERA (accessed 27 July 2021)
Audley-Charles, M.G. (2011) Tectonic post-collision processes in Timor. In: Hall, R., Cottam, M.A. & Wildon, M.E.J. (Eds.), The SE Asian Gateway: History and Tectonics of the Australia-Asia Collision. Special Publication. Geological Society London, pp. 241–266.
Baehr, M. & Reid, C.A.M. (2017) On a collection of Carabidae from Timor Leste, with descriptions of nine new species (Insecta: Coleoptera, Carabidae). Records of the Australian Museum, 69 (6), 421–450. https://doi.org/10.3853/j.2201-4349.69.2017.1660
Banks, N. (1934) Supplementary neuropteroid insects from Mr. Kinabalu, Borneo. 38. Journal of the Federated Malay States Museum, 17, 567–578, 23 figs.
Banks, N. (1936) Trichoptera from the Fiji Islands. Psyche, 43, 29–36. https://doi.org/10.1155/1936/18481
Bonada, N., Zamora-Muñoz, C., Rieradevalla, M. & Prata, N. (2004) Ecological profiles of caddisfly larvae in Mediterranean streams: Implications for bioassessment methods. Environmental Pollution, 132 (2004), 509–521. https://doi.org/10.1016/j.envpol.2004.05.006
Cartwright, D. (2001) Four new species and a new record of Chimarra Stephens (Trichoptera: Philopotamidae) from Bougainville Island, Papua New Guinea. Memoirs of Museum Victoria, 58, 223–230. https://doi.org/10.24199/j.mmv.2001.58.12
Cartwright, D. (2002) The Australian species of Chimarra Stephens (Trichoptera: Philopotamidae). Memoirs of Museum Victoria, 59, 393–437. https://doi.org/10.24199/j.mmv.2002.59.8
Cartwright, D. (2020) A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae). Memoirs of Museum Victoria, 79, 1–49. https://doi.org/10.24199/j.mmv.2020.79.01
Ings, N.I., Hildrew, A.G. & Grey, J. (2012) ‘House and garden’: Larval galleries enhance resource availability for a sedentary caddisfly. Freshwater Biology, 57 (12), 2526–2538. https://doi.org/10.1111/fwb.12025
Johanson, K.A. & Oláh, J. (2010) Description of six new species of Oriental Paduniella (Insecta: Trichoptera: Psychomyiidae). Zootaxa, 2548 (1), 43–56. https://doi.org/10.11646/zootaxa.2548.1.3
Kimmins, D.E. (1955) Results of the Oxford University expedition to Sarawak, 1932. Order Trichoptera. Sarawak Museum Journal, 6 (5), 374–442.
Köhler, F. & Kessner, V. (2014) Mitochondrial and morphological differentiation in a previously unrecognized radiation of the land snail genus Parachloritis Ehrmann, 1912 on Timor (Pulmonata: Camaenidae). Contributions to Zoology, 83 (1), 1–40. https://doi.org/10.1163/18759866-08301001
Köhler, F., Shea, M. & Kessner, C. (2019) Two new species of Landouria Godwin-Austen, 1918 from Timor-Leste (Stylommatophora, Camaenidae). Molluscan Research, 39 (3), 253–264. https://doi.org/10.1080/13235818.2018.1557780
Malicky, H. (1993) Neue asiatische Köcherfliegen (Trichoptera: Philopotamidae, Polycentropodidae, Psychomyidae, Ecnomidae, Hydropsychidae, Leptoceridae). Linzer Biologische Beitrage, 25 (2), 1099–1136.
Malicky, H. (1995) Weitere neue Köcherfliegen (Trichoptera) aus Asien. Braueria, 22, 11–26.
Malicky, H. (2005) Beiträge zur Kenntnis asiatischer Oecetis (Trichoptera, Leptoceridae). Linzer Biologische Beiträge, 37 (1), 605–669.
Malicky, H. (2010) Atlas of Southeast Asian Trichoptera. Chiang Mai University, Chiang Mai, 346 pp.
Malicky, H. & Chantaramongkol, P. (1993) Neue Trichopteren aus Thailand. Teil 1: Rhyacophilidae, Hydrobiosidae, Philopotamidae, Polycentropodidae, Ecnomidae, Psychomyidae, Arctopsychidae, Hydropsychidae. Linzer Biologische Beitrage, 25 (1), 433–487.
Malicky, H., Melnitsky, S.I. & Ivanov, V.D. (2014) Caddisflies (Trichoptera) from Lombok, Bali and Java (Indonesia), with a discussion of Wallace’s Line. Deutsche Entomologische Zeitschrift, 61 (1), 3–14. https://doi.org/10.3897/dez.61.7046
Marshall, J.E. (1979) A review of the Hydroptilidae (Trichoptera). Bulletin of the British Museum (Natural History) Entomology, 39 (3), 135–239.
Matthews, M. (1998) The CSIRO vesica everter: A new apparatus to inflate and harden eversible and other weakly sclerotised structures in insect genitalia. Journal of Natural History, 32, 317–327. https://doi.org/10.1080/00222939800770161
Merrill, D. & Wiggins, G.B. (1971) The larva and pupa of the caddisfly genus Setodes in North America (Trichoptera: Leptoceridae). Life Sciences Occasional Papers, Royal Ontario Museum, 19, 1–12. https://doi.org/10.5962/bhl.title.60683
Mey, W. (1999) The Hydropsyche formosana group in the Oriental Region: Taxonomy, distribution and phylogeny (Insecta, Trichoptera: Hydropsychidae). In: Malicky, H. & Chantaramongkol, P. (Eds.), Proceedings of the 9th International Symposium on Trichoptera,1999, pp. 227–236.
Mey, W. & Oláh, J. (2021) The Trichoptera (caddisflies) of Papua Indonesia. Available from: https://www.papua-insects.nl/insect/orders/Trichoptera/ (accessed 27 July 2021).
Morse, J.C. (Ed.) (2021) Trichoptera World Checklist. Available from: http://entweb.clemson.edu/database/trichopt/index.htm (accessed 29 June 2021)
Mosely, M.E. & Kimmins, D.E. (1953) The Trichoptera (Caddis-flies) of Australia and New Zealand. British Museum (Natural History), London, 550 pp. https://doi.org/10.5962/bhl.title.118696
Neboiss, A. (1977) A taxonomic and zoogeographic study of Tasmanian caddis-flies (Insecta: Trichoptera). Memoirs of Museum Victoria, 38, 1–208. https://doi.org/10.24199/j.mmv.1977.38.01
Neboiss, A. (1986) Atlas of Trichoptera of the SW Pacific—Australian Region. Dr W. Junk Publishers, Dordrecht/Boston/Lancaster, 286 pp. https://doi.org/10.1007/978-94-009-4814-3
Neboiss, A. (1990) The family Psychomyiidae (Trichoptera) re-established in Australia. Memoires of the Museum of Victoria, 51, 83–86. https://doi.org/10.24199/j.mmv.1990.51.04
Oláh, J. (2012) Taxonomic list of Trichoptera described and recorded from New Guinea region. Folia Historico Naturalia Musei Matraensis, 36, 105–122.
Oláh, J. & Johanson, K.A. (2010) Fifteen new Trichoptera (Insecta) species from Sumatra, Indonesia. Zootaxa, 2618 (1), 1–35. https://doi.org/10.11646/zootaxa.2618.1.1
Polhemus, D.A. & Polhemus, J.T. (1994) A new species of Aquarius (Heteroptera: Gerridae) from Timor, with notes on Timorese zoogeography. Proceedings of the Entomological Society of Washington, 96 (1), 54–62.
Salokannel, J., Jaakkola, M., Saaski, A.W. & Haverinen, R. (2021) Caddisflies from Bali and Lombok with descriptions of two new leptocerids. Braueria, 48, 27–33.
Seehausen, M. (2017) Survey of Odonata from Timor Island, with description of the female of Anax georgius (Odonata: Aeschnidae). Faunistic Studies in South-east Asian and Pacific Island Odonata, 20, 129.
Ulmer, G. (1906) Neuer beitrag zur kenntnis aussereuropäischer Trichopteren. Notes from the Leyden Museum, 28, 1–116.
Ulmer, G. (1907) Neue Trichopteren. Notes from the Leyden Museum, 29, 1–48.
Ulmer, G. (1913) Note IV. Über einige von Jacobson auf Jawa gessamelte Trichopteren. Zweiter Beitrag. Notes from Leyden Museum, 35, 78–101.
Ulmer, G. (1916) Results of Dr. E. Mjöberg’s Swedish Scientific expedition to Australia 1910–1913. Trichoptera. Arkiv för Zoologi, 10, 1–23. https://doi.org/10.5962/bhl.part.1501
Ulmer, G. (1951) Kocherfliegen (Trichopteren) von den Sunda-Inseln. Archiv für Hydrobiologie Supplement, 19, 1–528.
Wells, A. (1995) Larva, pupa and notes on general biology of Tinodes radona Neboiss (Trichoptera: Psychomyiidae. The Beagle, Records of the Museums and Art Galleries of Northern Territory, 12, 53–59. https://doi.org/10.5962/p.264276
Wells, A. & Huisman, J. (1992) Micro-caddisflies in the tribe Hydroptilini (Trichoptera: Hydroptilidae: Hydroptilinae) from Malaysia and Brunei. Zoologische Mededelingen, Leiden, 66, 91–126.
Wiggins, G.B. (2004) Caddisflies: The Underwater Architects. University of Toronto Press, Toronto, 292 pp. https://doi.org/10.3138/9781442623590