Taxonomic review of Rheocricotopus Brundin, 1956 (Diptera: Chironomidae: Orthocladiinae) from East Asia, with descriptions of twelve new species
Abstract
East Asian species of Rheocricotopus are reviewed and 12 species are illustrated and described as new to science in the subgenus Psilocricotopus Sæther: R. (P.) albulus sp. nov., R. (P.) bannaensis sp. nov., R. (P.) beibengensis sp. nov., R. (P.) binotatus sp. nov., R. (P.) chinogodavarius sp. nov., R. (P.) fasciolatus sp. nov., R. (P.) hanmiensis sp. nov., R. (P.) masarui sp. nov., R. (P.) monovittatus sp. nov., R. (P.) nippobifasciatus sp. nov., R. (P.) protuberans sp. nov., and R. (P.) yunnanensis sp. nov. Additionally, the female adult, pupa and larva of R. (P.) togakuroasi (Sasa & Okazawa, 1992), the female adult and pupa of R. (P.) orientalis Wang, 1995, the larva of R. (s. str.) tamahumeralis Sasa, 1981, and the female adult, pupa and larva of R. (s. str.) togapeniculus Sasa & Okazawa, 1992 are described for the first time. In total, 28 new synonyms are given: Rheocricotopus nudisquamus Makarchenko & Makarchenko, 2009, R. brochus Liu, Lin & Wang, 2014 and R. longiligulatus Yamamoto & Yamamoto, 2017 are listed as junior synonyms of R. amamipubescius (Sasa, 1990), R. bifasciatus Wang & Zheng, 1991 and R. oiraprimus Sasa, 1991, respectively; R. chalybeatus bicoloratus Caspers & Reiss, 1989, R. emeiensis Wang & Zheng, 1989, R. nigrus Wang & Zheng, 1989, R. okifoveatus Sasa, 1990, R. tedorisecundus Sasa, 1994, R. isigadeeus Sasa & Suzuki, 2000, R. yakulemeus Sasa & Suzuki, 2000, R. inaquereus Sasa, Kitami & Suzuki, 2001, R. inaxeyeus Sasa, Kitami & Suzuki, 2001, R. taiwanensis Wang, Yan & Maa, 2004, R. heterochros Liu, Song & Wang, 2014, and R. nemoacrostichalis Chaudhuri & Sinharay, 1983 are treated as junior synonyms of R. chalybeatus (Edwards, 1929); R. akagisecundus Kikuchi & Sasa, 1994 and R. gotocedeus Sasa & Suzuki, 2001 are treated as junior synonyms of R. togakuroasi (Sasa & Okazawa, 1992); R. baishanensis Wang & Zheng, 1991 and R. himalayenis Chaudhuri & Sinharay, 1983 are treated as junior synonyms of R. effusus (Walker, 1856); R. reduncusoides Namayandeh & Beresford, 2018 and R. shofukusecundus Sasa, 1998 are treated as junior synonyms of R. reduncus Sæther & Schnell, 1988 and Paracladius akansextus Sasa & Kaminura, 1987, respectively; R. kamimonji Sasa & Hirabayashi, 1993 and R. kurocedeus Sasa, 1996 are treated as junior synonyms of R. togapeniculus Sasa & Okazawa, 1992; Parorthocladius negoroi Yamamoto, 2011 and Orthocladius piloculatus Kobayashi, 2012 are treated as junior synonyms of Parorthocladius intermedius (Tokunaga, 1939) comb. nov.; R. tobatervicesimus Kikuchi & Sasa, 1990, Paratrichocladius unabrevis Sasa, 1996 and R. rotundus Liu, Lin & Wang, 2014 are treated as junior synonyms of Paracricotopus irregularis Niitsuma, 1990. In addition, two new combinations, Parorthocladius intermedius (Tokunaga, 1939) comb. nov. and Paracricotopus brachypus (Wang & Zheng, 1991) comb. nov. are proposed here. To accommodate these species, generic and subgeneric diagnoses are emended. A key to the known male adults from East Asia is provided.
References
Albu P. 1968. Chironomide din Carpații românești (III). [Chironomids from the Romanian Carpathians (III)]. Studii și Cercetări de Biologie, Série de Zoologie 20 (5): 455–465. [In Romanian.]
Andersen T., Sæther O.A., Cranston P.S. & Epler J.H. 2013. 9. The larvae of Orthocladiinae (Diptera: Chironomidae) of the Holarctic Region – Keys and diagnoses. In: Andersen T., Cranston P.S. & Epler J.H. (eds) The Larvae of Chironomidae (Diptera) of the Holarctic Region – Keys and Diagnoses. Insect Systematics and Evolution (Supplement) 66: 189–386. Lund, Sweden.
Ashe P. & Cranston P.S. 1990. Family Chironomidae. In: Soós Á. & Papp L. (eds) Catalogue of Palaearctic Diptera. Vol. 2. Psychodidae – Chironomidae: 113–499. Akadémiai Kiadó, Budapest.
Ashe P. & O’Connor J.P. 2012. A World Catalogue of Chironomidae (Diptera). Part 2A, B. Orthocladiinae. Irish Biogeographical Society & National Museum of Ireland, Dublin.
Beck Jr., W.M. & Beck E.C. 1964. New Chironomidae from Florida (Diptera). Florida Entomologist 47 (3): 201–207. https://doi.org/10.2307/3493325
Bhattacharyay S., Ali A. & Chaudhuri P.K. 1991. Orthoclads of tribe Orthocladiini (Diptera: Chironomidae) from India. Beiträge zur Entomologie 41 (2): 333–349.
Brundin L. 1956. Zur Systematik der Orthocladiinae (Dipt. Chironomidae). Report from the Institute of Freshwater Research, Drottningholm 37: 5–185.
Caldwell B.A. 1984. Two new species and records of other chironomids from Georgia (Diptera: Chironomidae) with some observations on ecology. Georgia Journal of Science 42 (4): 81–96.
Caspers N. & Reiss F. 1989. Die Chironomidae der Türkei. Teil I: Podonominae, Diamesinae, Prodiamesinae, Orthocladiinae. (Diptera, Nematocera, Chironomidae). Entomofauna 10 (8): 105–160.
Chaudhuri P.K. & Sinharay D.C. 1983. A study on Orthocladiinae (Diptera, Chironomidae) of India. The genus Rheocricotopus Thienemann and Harnisch. Entomologica Basiliensia 8: 398–407.
Coffman W.P., Cranston P.S., Oliver D.R. & Sæther O.A. 1986. 9. The pupae of Orthocladiinae (Diptera: Chironomidae) of the Holarctic region – Keys and diagnoses. In: Wiederholm T. (ed.) Chironomidae of the Holarctic region – Keys and Diagnoses. Part 2. Pupae. Entomologica Scandinavica, Supplement 28: 147–296. Lund, Sweden.
Cranston P.S. 1982. A key to the larvae of the British Orthocladiinae (Chironomidae). Freshwater Biological Association, Scientific Publications 45: 1–152.
Cranston P.S., Oliver D.R. & Sæther O.A. 1983. 9. The larvae of Orthocladiinae (Diptera: Chironomidae) of the Holarctic region – Keys and diagnoses. In: Wiederholm T. (ed.) Chironomidae of the Holarctic Region. Part 1. Larvae. Entomologica Scandinavica, Supplement 19: 149–291. Lund, Sweden.
Cranston P.S., Oliver D.R. & Sæther O.A. 1989. 9. The adult males of Orthocladiinae (Diptera: Chironomidae) of the Holarctic region – Keys and diagnoses. In: Wiederholm T. (ed.) Chironomidae of the Holarctic region – Keys and Diagnoses. Part 3. Adult Males. Entomologica Scandinavica, Supplement 34: 165–352. Lund, Sweden.
Edwards F.W. 1929. British non-biting midges (Diptera, Chironomidae). Transactions of the Entomological Society of London 77: 279–430. https://doi.org/10.1111/j.1365-2311.1929.tb00692.x
Epler J.H. 2001. Identification Manual for the Larval Chironomidae (Diptera) of North and South Carolina. A Guide to the Taxonomy of the Midges of the Southeastern United States, Including Florida. Special Publication SJ2001-SP13. North Carolina Department of Environment and Natural Resources, Raleigh, North Carolina, and St. Johns River Water Management District, Palatka, Florida.
Fu Y., Huang J., Liu W., Fang X. & Wang X. 2016. Redescription of 13 holotypes of Rheocricotopus Brundin, 1956 (Diptera: Chironomidae) from the Sino–Indian Region. Zootaxa 4114 (3): 261–276. https://doi.org/10.11646/zootaxa.4114.3.3
Goetghebuer M. 1932. Diptères. Chironomidae IV. (Orthocladiinae, Corynoneurinae, Clunioninae, Diamesinae). Faune de France 23: 1–204.
Goetghebuer M. 1937. Ceratopogonidae et Chironomidae nouveaux ou peu connus d’Europe. (7e note). Bulletin et Annales de la Société entomologique de Belgique 77 (6): 273–280.
Goetghebuer M. 1939. Études biospéologiques. XVI (1). Deux Chironomidae (Diptera) de Roumanie. Bulletin du Musée royal d’Histoire naturelle de Belgique 15 (56): 1–2.
Goetghebuer M. & Dorier A. 1932. Les métamorphoses d’Orthocladius (Dactylocladius) dorieri Goetghebuer. Travaux du Laboratoire d’Hydrobiologie et de Pisciculture de l’Université de Grenoble 23: 61–65.
Gouin F. 1936. Métamorphoses de quelques Chironomides d’Alsace et de Lorraine avec la description de trois espèces nouvelles par M. Goetghebuer. Revue française d’Entomologie 3: 151–173.
Hazra N., Som D.K. & Chaudhuri P.K. 1998. Immatures of Rheocricotopus (Psilocricotopus) valgus Chaudhuri & Sinharay of Darjeeling Himalaya with notes on ecology (Diptera: Chironomidae). Annales de Limnologie 34 (1): 75–82. https://doi.org/10.1051/limn/1998008
Hazra N., Niitsuma H. & Chaudhuri P.K. 2016. Checklist of Chironomid Midges (Diptera: Chironomidae) of the Oriental Region. Occasional Paper No. 376. Zoological Survey of India, Kolkata.
Hirabayashi K., Iwakuam T. & Yamamoto M. 1998. Chironomid fauna and its diversity of Oze Area. In: The Oze Scientific Research Group (ed.) Scientific Researches of the Oze Area in Central Japan: 803–810. Japan Society for the Promotion of Science, Tokyo. [In Japanese.]
Johannsen O.A. 1932. Orthocladiinae of the Malayan Subregion of the Dutch East Indies. Archiv für Hydrobiologie Supplement 9: 715–732.
Kieffer, J.J. 1909. Diagnoses de nouveaux Chironomides d’Allemagne. Bulletin de la Société d’Histoire naturelle de Metz 26: 37–56. https://doi.org/10.5962/bhl.part.13505
Kieffer J.J. 1921. Neue Chironomiden aus Mitteleuropa. Archiv für Hydrobiologie Supplement 2 (4): 785–808.
Kikuchi M. & Sasa M. 1990. Studies on the chironomid midges (Diptera, Chironomidae) of the Lake Toba area, Sumatra, Indonesia. Japanese Journal of Sanitary Zoology 41 (4): 291–329. https://doi.org/10.7601/mez.41.291
Kikuchi M. & Sasa M. 1994. Part 5. The chironomid species collected from fountain waters in Akagi and Kannami. In: Some Characteristics of Water Quality and Aquatic Organism in the Chief Lakes in Toyama Prefecture (Lake Arimine, Kamiichigawa Reservoir), 1994: 112–124. Toyama Prefecture Environmental Research Center, Kosugi, Japan.
Kobayashi T. 2012. A new distinctive species of the genus Orthocladius with hairy eyes from Japan (Diptera: Chironomidae). Zootaxa 3230: 52–58. https://doi.org/10.11646/zootaxa.3230.1.2
Kobayashi T. & Endo K. 2008. Synonymic notes on some species of Chironomidae (Diptera) described by Dr. M. Sasa. Zootaxa 1712: 49–64. https://doi.org/10.11646/zootaxa.1712.1.3
Langton P.H. 1991. A Key to Pupal Exuviae of West Palaearctic Chironomidae. Private publication.
Langton P.H. & Pinder L.C.V. 2007. Keys to the adult male Chironomidae of Britain and Ireland. Volume 1. Introductory text, keys, references, checklist and index. Volume 2. Illustrations of the hypopygia and a supplement identifying sixteen species recently recorded from Britain and Ireland. Freshwater Biological Association Scientific Publication 64: 1–239 & 1–168.
Langton P.H. & Visser H. 2003. Chironomidae Exuviae – a Key to Pupal Exuviae of the West Palaearctic Region. World Biodiversity Database. Expert Center for Taxonomic Information, Amsterdam. [CD-ROM Series.]
Lehmann J. 1969. Die europäischen Arten der Gattung Rheocricotopus Thien. und Harn. und drei neue Artvertreter dieser Gattung aus der Orientalis (Diptera, Chironomidae). Archiv für Hydrobiologie 66 (3): 348–381.
Lin X., Yu H., Wang Q., Bu W. & Wang X. 2020. DNA barcodes and morphology confirm a new species of Rheocricotopus (Psilocricotopus) orientalis group (Diptera: Chironomidae). Zootaxa 4768 (2): 282–290. https://doi.org/10.11646/zootaxa.4768.2.9
Liu W., Lin X. & Wang X. 2014a. A review of Rheocricotopus (Psilocricotopus) chalybeatus species group from China, with the description of three new species (Diptera, Chironomidae). ZooKeys 388: 17–34. https://doi.org/10.3897/zookeys.388.6316
Liu W., Song C. & Wang X. 2014b. Review of the subgenus Rheocricotopus (s. str.) Brundin, 1956 from China (Diptera, Chironomidae). Pan-Pacific Entomologist 90: 100–106. https://doi.org/10.3956/2014-90.2.100
Makarchenko E.A. & Makarchenko M.A. 2005. Chironomids of the genus Rheocricotopus Thienemann et Harnisch, 1932 (Diptera, Chironomidae, Orthocladiinae) of the Russian Far East. Euroasian Entomological Journal 4 (2): 125–136. [In Russian.]
Makarchenko E.A. & Makarchenko M.A. 2009. New findings of chironomids (Diptera, Chironomidae) in Far East and bordering territories. IV. Subfamily Orthocladiinae. Euroasian Entomological Journal 8 (1): 117–124.
Makarchenko E.A. & Makarchenko M.A. 2015. A review of the genus Parorthocladius Thienemann, 1935 (Diptera: Chironomidae: Orthocladiinae) from the Russian Far East. Zootaxa 3974 (3): 413–423. https://doi.org/10.11646/zootaxa.3974.3.8
Malloch J.R. 1915. The Chironomidae, or midges, of Illinois, with particular reference to the species occurring in the Illinois River. Bulletin of the Illinois State Laboratory of Natural History 10: 275–543. https://doi.org/10.21900/j.inhs.v10.376
Moubayed-Breil J. & Ashe P. 2019. Rheocricotopus (s. str.) costai sp. n. and R. (s. str.) pyrenaeus sp. n., two relict species from glacial rheocrenes and streams in Corsica and the Eastern Pyrenees (Diptera: Chironomidae, Orthocladiinae). Trakya University Journal of Nature Science 20 (1): 35–46. https://doi.org/10.23902/trkjnat.493928
Namayandeh A. & Beresford D.V. 2018. A new species in the Rheocricotopus (R.) effusus group from Canada with a review of the Nearctic species of Rheocricotopus and Parametriocnemus (Chironomidae: Orthocladiinae). Chironomus, Journal of Chironomidae Research 31: 16–29. https://doi.org/10.5324/cjcr.v0i31.2531
Namayandeh A. & Ghaderi E. 2025. A review of Paracricotopus (Brundin, 1947), with the description of two new species and redescription of the adult males of Paracricotopus niger (Kieffer, 1913) and Paracricotopus uliginosus (Brundin, 1947) sensu Sæther (1980) (Chironomidae: Diptera). Zootaxa 5569 (1): 138–158. https://doi.org/10.11646/zootaxa.5569.1.5
Namayandeh A., Guerra S., Islam N., James T., Hudson P.L., Ghaderi E., Yusuf T., Vasquez A.A. & Ram J.L. 2024. New species and a fascinating diversity of Chironomidae (Diptera, Insecta) in and around an overlooked urban vernal pool. ZooKeys 1208: 133–163. https://doi.org/10.3897/zookeys.1208.124495
Niitsuma H. 1990. Paracricotopus (Diptera, Chironomidae) from Japan, with description of a new species. Japanese Journal of Entomology 58 (1): 95–107.
Ree H.I. 2013. Two new and three newly recorded species of Chironomidae (Diptera) from Korea. Animal Systematics, Evolution and Diversity 29 (3): 217–226. https://doi.org/10.5635/ASED.2013.29.3.217
Sæther O.A. 1969. Some Nearctic Podonominae, Diamesinae, and Orthocladiinae (Diptera: Chironomidae). Bulletin of the Fisheries Research Board of Canada 170: 1–154.
Sæther O.A. 1971. Notes on general morphology and terminology of the Chironomidae (Diptera). Canadian Entomologist 103: 1237–1260. https://doi.org/10.4039/Ent1031237-9
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. 1986. A review of the genus Rheocricotopus Thieneman & Harnisch, 1932, with the description of three new species (Diptera, Chironomidae). In: Fittkau E.J. (ed.) Beiträge zur Systematik der Chironomidae, Diptera. Spixiana Supplement 11: 59–108.
Sæther O.A. & Schnell Ø.A. 1988. Two new species of the Rheocricotopus (R.) effusus group (Diptera, Chironomidae). In: Fittkau E.J. (ed.) Festschrift zu Ehren von Lars Brundin. Spixiana Supplement 14: 65–74.
Sæther O.A., Ashe P. & Murray D.A. 2000. A6. Family Chironomidae. In: Papp L. & Darvas B. (eds) Contributions to a Manual of Palaearctic Diptera (with Special Reference to Flies of Economic Importance). Appendix: 113–334. Science Herald, Budapest.
Sasa M. 1981. Studies on chironomid midges of the Tama River. Part 4. Chironomidae recorded at a winter survey. Research Report from the National Institute for Environmental Studies 29: 79–148.
Sasa M. 1989. 3. Studies on the chironomid midges (Diptera, Chironomidae) of Shou River. In: Some Characteristics of Nature Conservation within the Chief Rivers in Toyama Prefecture (the Upper Reach of Shou River), 1989: 26–110. Toyama Prefecture Environment Pollution Research Center, Kosugi, Japan.
Sasa M. 1990. Studies on the chironomid midges (Diptera, Chironomidae) of the Nansei Islands, southern Japan. Japanese Journal of Experimental Medicine 60 (3): 111–165.
Sasa M. 1991. Annex. Studies on the chironomids of some rivers and lakes in Japan. Part 2. Studies on the chironomids of the Lake Towada area, Aomori. In: Some Characteristics of Nature Conservation within the Chief Rivers in Toyama Prefecture (The Upper Reach of Jyoganji River, Hayatsuki River and Katakai River), 1991: 68–81. Toyama Prefectural Environment Pollution Research Center, Kosugi, Japan.
Sasa M. 1994. Part 1. Additional information on the Chironomidae of Japan, 1994. In: Some Characteristics of Water Quality and Aquatic Organism in the Chief Lakes in Toyama Prefecture (Lake Arimine, Kamiichigawa Reservoir): 28–67. Toyama Prefecture Environmental Research Center, Kosugi, Japan.
Sasa M. 1996a. A. Studies on the chironomids collected at the side of Kuroyon Lake and on the highlands of Mount Tate area, Toyama. In: Some Characteristics of Water Quality and Aquatic Organism in the Chief Lakes in Toyama Prefecture, 1996: 16–47. Toyama Prefectural Environment Science Research Center, Kosugi, Japan.
Sasa M. 1996b. C. Studies on the chironomid species collected on the shore of Kurobe River at Unazuki, Toyama. In: Some Characteristics of Water Quality and Aquatic Organism in the Chief Lakes in Toyama Prefecture (Lake Kurobe), 1996: 57–60. Toyama Prefectural Environment Science Research Center, Kosugi, Japan.
Sasa M. 1998. Part 1. Studies on the chironomids collected throughout the year in the Shofuku Garden, near the mouth of Kurobe River, Toyama. Bulletin of Toyama Prefectural Environmental Science Research Center 25 (3): 14–69.
Sasa M. & Hasegawa H. 1988. Additional records of the chironomid midges from the Ryukyu Islands, southern Japan (Diptera, Chironomidae). Japanese Journal of Sanitary Zoology 39 (3): 229–256. https://doi.org/10.7601/mez.39.229
Sasa M. & Hirabayashi K. 1993. Studies on the additional chironomids (Diptera, Chironomidae) collected at Kamikochi and Asama-Onsen, Nagano, Japan. Japanese Journal of Sanitary Zoology 44 (4): 361–393. https://doi.org/10.7601/mez.44.361
Sasa M. & Kaminura K. 1987. Part II. Chironomid midges collected on the shore of lakes in the Akan National Park, Hokkaido (Diptera, Chironomidae). In: Yasuno M., Sugaya Y., Sasa M. and Kamimura K. (eds) Studies on the Chironomid Midges of Lakes in the Akan National Park, Hokkaido. Research Report from the National Institute for Environmental Studies 104: 9–61.
Sasa M. & Kawai K. 1987a. Studies on chironomid midges of the stream Itachigawa, Toyama. Bulletin of the Toyama Science Museum 10: 25–72.
Sasa M. & Kawai K. 1987b. Studies on chironomid midges of Lake Biwa (Diptera, Chironomidae). Lake Biwa Study Monographs 3: 1–119.
Sasa M. & Kikuchi M. 1995. Chironomidae (Diptera) of Japan. University of Tokyo Press, Tokyo.
Sasa M. & Okazawa T. 1992. Studies on the chironomid midges (Yusurika) of Toga-Mura, Toyama. Part 2. The subfamily Orthocladiinae. In: Some Characteristics of Nature Conservation within the Chief Rivers in Toyama Prefecture (the Upper Reach of Kurobe River), 1992: 92–204. Toyama Prefectural Environment Pollution Research Center, Kosugi, Japan.
Sasa M. & Suzuki H. 1993. Part 9. Additional records of Chironomidae from Amami Island. In: Some Characteristics of Water Quality and Aquatic Organism in the Chief Lakes in Toyama Prefecture (Lake Nawagaike), 1993: 110–124. Toyama Prefecture Environment Pollution Research Center, Kosugi, Japan.
Sasa M. & Suzuki H. 1995. The chironomid species collected on the Tokara Islands, Kagoshima (Diptera). Japanese Journal of Sanitary Zoology 46 (3): 255–288. https://doi.org/10.7601/mez.46.255
Sasa M. & Suzuki H. 1999. Studies on the chironomid midges of Tsushima and Iki Islands, western Japan. Part 2. Species of Orthocladiinae and Tanypodinae collected on Tsushima. Tropical Medicine 41 (2): 75–132.
Sasa M. & Suzuki H. 2000a. Studies on the chironomid species collected on Ishigaki and Iriomote Islands, southwestern Japan. Tropical Medicine 42 (1): 1–37.
Sasa M. & Suzuki H. 2000b. Studies on the chironomid midges collected on Yakushima Island, southwestern Japan. Tropical Medicine 42 (2): 53–134.
Sasa M. & Suzuki H. 2001a. Studies on the chironomid collected on Goto Islands, western Japan. Tropical Medicine 42 (3/4): 141–174.
Sasa M. & Suzuki H. 2001b. Studies on the chironomid species collected at five localities in Hokkaido in September, 1998 (Diptera, Chironomidae). Tropical Medicine 42 (3/4): 175–199.
Sasa M. & Suzuki H. 2001c. Studies on the chironomid species collected in Hokkaido in September, 2000. Tropical Medicine 43 (1/2): 1–38.
Sasa M. & Tanaka N. 1998. Notes on the chironomid species collected in Gunma Prefecture in 1996–1997. Annual Report of Gunma Prefecture Institute of Public Health and Environmental Sciences 30: 37–46.
Sasa M. & Tanaka N. 2000. Description of new species of Chironomidae collected with light traps at the side of Tone River, Gunma Prefecture. Annual Report of Gunma Prefecture Institute of Public Health and Environmental Sciences 32: 38–48.
Sasa M. & Tanaka N. 2001. Studies on the chironomid midges collected with light traps during the summer season by the bridges of the Tone River, Gunma Prefecture. Annual Report of Gunma Prefecture Institute of Public Health and Environmental Sciences 33: 41–73.
Sasa M., Kawai K. & Ueno R. 1988. 3. Studies on the chironomid midges of the Oyabe River, Toyama, Japan. In: Some Characteristics of Nature Conservation within the Chief Rivers in Toyama Prefecture (The Upper Reach of Oyabe River), 1988: 26–85. Toyama Prefecture Environment Pollution Research Center, Kosugi, Japan.
Sasa M., Kitami K. & Suzuki H. 2001. Additional Studies on the Chironomid Midges Collected on the Shore of Lake Inawashiro (2001). The Hideyo Noguchi Memorial Foundation, Inawashiro, Japan.
Tang H. & Niitsuma H. 2017. Review of the Japanese Microtendipes (Diptera: Chironomidae: Chironominae), with description of a new species. Zootaxa 4320 (3): 535–553. https://doi.org/10.11646/zootaxa.4320.3.8
Thienemann A. & Harnisch O. 1932. Chironomiden-Metamorphosen. IV. Die Gattung Cricotopus v. d. Wulp. Zoologischer Anzeiger 99 (5/6): 135–143.
Tokunaga M. 1938. Chironomidae from Japan (Diptera), X. New of little-known midges, with descriptions of the metamorphoses of several species. Philippine Journal of Science 65 (4): 313–383.
Tokunaga M. 1939. Chironomidae from Japan (Diptera), XI. New or little-known midges, with special reference to the metamorphoses of torrential species. Philippine Journal of Science 69 (3): 297–345.
Walker F. 1856. Insecta Britannica. Diptera. Vol. III. Lovell Reeve Publishing Company, London.
Wang X. 1995. Rheocricotopus (R.) orientalis, a new species from China (Diptera: Chironomidae). Aquatic Insects 17 (1): 37–40. https://doi.org/10.1080/01650429509361567
Wang X. & Sæther O.A. 2001. Two new species of the orientalis group of Rheocricotopus (Psilocricotopus) from China (Diptera: Chironomidae). Hydrobiologia 444: 237–240. https://doi.org/10.1023/A:1017548204492
Wang X. & Zheng L. 1989. Two new species of the genus Rheocricotopus from China. Entomotaxonomia 11 (4): 311–313. [In Chinese.]
Wang X & Zheng L. 1991. Notes on the genus Rheocricotopus from China (Diptera: Chironomidae). Acta Zootaxonomica Sinica 16 (1): 99–105. [In Chinese.]
Wang X., Yan C. & Maa C. 2004. A new Rheocricotopus Thienemann & Harnischia (Diptera: Chironomidae) from Taiwan Province, China. Entomologia Sinica 11 (3): 239–242. https://doi.org/10.1111/j.1744-7917.2004.tb00244.x
Yamamoto M. 2004. A catalog of Japanese Orthocladiinae (Diptera: Chironomidae). Makunagi/Acta Dipterologica 21: 1–121.
Yamamoto M. 2011. A new species of Parorthocladius Thienemann (Diptera: Chironomidae) from Toyama Prefecture, Honshu, Japan, with distributional data of some chironomid species. Bulletin of the Toyama Science Museum 34: 31–36.
Yamamoto M. & Yamamoto N. 2014. Family Chironomidae. In: The Editorial Committee of Catalogue of the Insect of Japan (ed.) Catalogue of the Insects of Japan, Vol. 8. Diptera (Part 1. Nematocera – Brachycera Aschiza): 237–362. Touka Shobo, Fukuoka, Japan. [In Japanese.]
Yamamoto M. & Yamamoto N. 2017. A new species of the genus Rheocricotopus Brundin from Japan (Diptera: Chironomidae: Orthocladiinae). Japanese Journal of Systematic Entomology 23 (1): 75–79.
Yamamoto M., Yamamoto N. & Kimura M. 2015. Taxonomic notes on Chironomidae (Diptera) from Okinawa Island, Japan, with the description of three new species. European Journal of Environmental Science 5 (1): 101–115. https://doi.org/10.14712/23361964.2015.83
Yamamoto N., Suzuki M. & Yamamoto M. 2019. Taxonomic notes on several Japanese chironomids (Diptera) described by Dr. M. Sasa and his coauthors. Japanese Journal of Systematic Entomology 25 (1): 63–72.
Yan C. & Wang X. 2004. A new species of the orientalis group of Rheocricotopus from China (Diptera, Chironomidae). Acta Zootaxonomica Sinica 29 (3): 560–562.
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