identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
AB7CC720FFD6FFFDFF1DA1D1FB78FE57.text	AB7CC720FFD6FFFDFF1DA1D1FB78FE57.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cryptotendipes Beck & Beck	<div><p>Genus  Cryptotendipes Beck &amp; Beck</p><p>Cryptotendipes Lenz, 1941: 34, nomen nudum.</p><p>Cryptotendipes Beck &amp; Beck, 1969: 294 .</p><p>Mongolchironomus Sasa &amp; Suzuki, 1997,  syn. nov. 1</p><p>Type species.  Chironomus (Leptochironomus) usmaensis Pagast, 1931, by designation of Beck &amp; Beck, 1969: 294.</p><p>Remarks. Generic diagnoses were given by Cranston et al. (1989) for the adult male, Pinder &amp; Reiss (1986) for the pupa, and Epler et al. (2013) for the larva. The regional keys can be referred to Saether (2010) and Epler (2018), and the worldwide key was proposed by Yan et al. (2005), Pal &amp; Hazra (2018) and Mukherjee et al. (2020).</p></div>	https://treatment.plazi.org/id/AB7CC720FFD6FFFDFF1DA1D1FB78FE57	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	He, Yueran;Tang, Hongqu	He, Yueran, Tang, Hongqu (2025): Synonymic notes on two Mongolian Cryptotendipes species (Diptera, Chironomidae). Zootaxa 5590 (2): 294-300, DOI: 10.11646/zootaxa.5590.2.10, URL: https://doi.org/10.11646/zootaxa.5590.2.10
AB7CC720FFD6FFFDFF1DA379FAE8F90E.text	AB7CC720FFD6FFFDFF1DA379FAE8F90E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cryptotendipes darbyi (Sublette 1960)	<div><p>Cryptotendipes darbyi (Sublette)</p><p>(Figure 1)</p><p>Tendipes darbyi Sublette, 1960: 221 .</p><p>Tendipes ariel Sublette, 1960: 222 .</p><p>Cryptotendipes darbyi: Saether 1977: 97, 2010: 12; Hayford 2005: 197.</p><p>Mongolchironomus mongoljekeus Sasa &amp; Suzuki, 1997: 159,  syn. nov.</p><p>Material examined.   Holotype of  Mongolchironomus mongoljekeus, M (NSMT-I-Dip 5053), labelled “No. 308:84”. MONGOLIA: Bogd #9, 44°40'N, 102°11'E, alt. 1500 m, 13.viii.1996, leg. H. Suzuki ; 1 M, MONGOLIA: Hyargas Nuur, 20.viii.2019, leg. Q. Han;  4 M, CHINA: Qinghai Province, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.53333&amp;materialsCitation.latitude=37.016666" title="Search Plazi for locations around (long 100.53333/lat 37.016666)">Lake</a> Qinghai, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.53333&amp;materialsCitation.latitude=37.016666" title="Search Plazi for locations around (long 100.53333/lat 37.016666)">Daotang</a> stream, 36°34'N, 100°44'E, alt. 3200 m, 12.vii.2023, leg. S. Wang;   1 <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.53333&amp;materialsCitation.latitude=37.016666" title="Search Plazi for locations around (long 100.53333/lat 37.016666)">Pe</a>, 3 L, Qinghai Province, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.53333&amp;materialsCitation.latitude=37.016666" title="Search Plazi for locations around (long 100.53333/lat 37.016666)">Lake</a> Qinghai catchment, a freshwater bog near <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.53333&amp;materialsCitation.latitude=37.016666" title="Search Plazi for locations around (long 100.53333/lat 37.016666)">Gahai</a>, 37°1'N, 100°32'E, alt., 3210 m, 27.vi.2016, leg. J. Liu; 1M (ZSM),   RUSSIA: Zabaykalsky Krai, Tshita, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.53333&amp;materialsCitation.latitude=37.016666" title="Search Plazi for locations around (long 100.53333/lat 37.016666)">Barun-Torei Lake</a>, Cape Myrgen, 20.vi.1994, leg. V. G. Shilenkov.</p><p>Remarks. The examined holotype (Fig. 1B) has a relatively slender, spatulate anal point, contrary to the portrayed stout, parallel-sided anal point in the original illustrations (Sasa &amp; Suzuki 1997: 160, figs 11j, 11k). The dorsal surface of superior volsella is nearly entirely microtrichiose, and bare on the ventral surface. The ventral tubercles (Fig. 1C) under T IX are rolled upward. The fused anal tergite band is not well illustrated. A new hypopygium illustration (Fig. 1C) based on the holotype is shown here, with those of the superior volsella and anal tergite band (Figs 1F, I) varying in the perceived shape depending on the mounting orientation on the glass slide and pressure from the cover glass.</p><p>The morphological features of the specimens collected from China, Mongolia and Russia are consist with those of the holotype of  Mongolchironomus mongoljekeus Sasa &amp; Suzuki. These specimens undoubtedly belong to the same species. The species is characterised by the color pattern of legs (foreleg entirely dark-brown and mid and hind legs dark-brown only on the tarsi), the scutum with 3–4 pairs of acrostichal setae on the middle, the male with the pad-like, microtrichiose superior volsella with a row of several anterior setae. Further, the males of Asian populations examined here have following features: head with weak or no frontal tubercle, total length 3.1–4.7 mm, wing length 1.5–2.2 mm, AR 2.23–2.68, and LR 1 1.35–1.48. These fall into the range of variation described by Sublette (1960) and Saether (2010) for Nearctic specimens. The specimen collected from Russia by V. G. Shilenkov, now deposited in Zoologische Staatssammlung, München, Germany (ZSM) satisfies these features (M. Spies, ZSM, Germany, pers. comm.).</p><p>The BLAST analysis showed that our barcode sequences (DBCCT012-24, DBCCT013-24, DBCCT014-24) have a high similarity (&gt; 98.5%) with that in the Canadian material identified as  Cryptotendipes darbyi (accession numbers KR633331, KR618562, KR642352, KX281738), of which morphological features are consistent with those of our material, too.</p><p>Distribution. The species has a Holarctic distribution, from North America (USA and Canada) to Europe (Central Finland), and further to the Mongolian Plateau and the Tibetan Plateau in Asia. The distribution is shown in Fig. 3.</p></div>	https://treatment.plazi.org/id/AB7CC720FFD6FFFDFF1DA379FAE8F90E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	He, Yueran;Tang, Hongqu	He, Yueran, Tang, Hongqu (2025): Synonymic notes on two Mongolian Cryptotendipes species (Diptera, Chironomidae). Zootaxa 5590 (2): 294-300, DOI: 10.11646/zootaxa.5590.2.10, URL: https://doi.org/10.11646/zootaxa.5590.2.10
AB7CC720FFD3FFF8FF1DA1FDFF65FBD8.text	AB7CC720FFD3FFF8FF1DA1FDFF65FBD8.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cryptotendipes acalcar Reiss	<div><p>Cryptotendipes acalcar Reiss</p><p>(Figure 2)</p><p>Cryptotendipes acalcar Reiss, 1990: 209 .</p><p>Mongolchironomus mongolkeleus Sasa &amp; Suzuki, 1997: 161,  syn. nov.</p><p>Material examined.   Holotype of  Mongolchironomus mongolkeleus, M (NSMT-I-Dip 5054), labelled “No. 308:86”, MONGOLIA: Bogd #9, 44°40'N, 102°11'E, alt. 1500 m, 13.viii.1996, leg. H. Suzuki;   1M, 1F, CHINA: Qinghai Province, Lake Qinghai, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=88.28333&amp;materialsCitation.latitude=39.483334" title="Search Plazi for locations around (long 88.28333/lat 39.483334)">River Heima</a>, 36°41'N, 99°53'E, alt. 3260 m, 22.vii.2023, leg. H. Tang;  2L, as previous except 36°42'N, 99°45'E, alt. 3290 m, leg. X. Qiu, 23.vi.2016;  3M, 2 Pe, Xinjiang Province, Ruoqiang County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=88.28333&amp;materialsCitation.latitude=39.483334" title="Search Plazi for locations around (long 88.28333/lat 39.483334)">Lop village</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=88.28333&amp;materialsCitation.latitude=39.483334" title="Search Plazi for locations around (long 88.28333/lat 39.483334)">Lake Tetma</a>, 39°29'N, 88°17'E, alt. 808 m, 20.viii.2024, leg. Z. Wu;  2L, as previous except 21.viii.2015, leg. Y. Zhang; 1M, MONGOLIA: Uvs Aimag, Tes Sum, Uvs Nuur, 22.viii.2019, leg. Q. Han.</p><p>Remarks. The re-examination of the holotype of  Mongolchironomus mongolkeleus Sasa &amp; Suzuki revealed that in the original description, the authors (1997: 160, fig. 12g) overlooked the heavily pigmented median longitudinal ridge (band) on the anal tergite (Fig. 2B). In addition, they illustrated the dorsal appendage as if it has a large bare base. Actually, the strange base is an interface forming a boundary between the volsella and the gonocoxite. The interface (Figs 2G, H) is easily distorted by pressure on the coverslip. Thus, the features of specimens newly collected from China are consistent with those of the holotype of  M. mongolkeleus .</p><p>Further, the collection information on the holotype of  M. mongolkeleus contradicts the published data (Sasa &amp; Suzuki 1997: 161). The label reads “Ulaanbaatur #20, 9.viii.1996 ”, whereas the publication lists “Bogd #9, 13.viii.1996 ”. We adopt the published data, as the original label is possible to have been revised once.</p><p>Adult males collected from China have the following features: total body length 4.1–5.8 mm, wing length 1.9–2.5 mm, AR 2.45–3.00 and LR 1 1.37–1.52. These measurement data and ratios satisfy the original description of  Cryptotendipes acalcar Reiss, 1990 .  Mongolchironomus mongolkeleus is a junior synonym of  Cryptotendipes acalcar Reiss.</p><p>Two barcodes for  C. acalcar (DBCCT009-24, DBCCT010-24) are newly provided here based on Chinese specimens.</p><p>Distribution. The species is previously only known from Turkey and Mongolia, and is now shown to occur in the northwest of China, the Lake Qinghai catchment and the southeast of Xinjiang Prefecture. The distribution is shown in Fig. 3.</p></div>	https://treatment.plazi.org/id/AB7CC720FFD3FFF8FF1DA1FDFF65FBD8	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	He, Yueran;Tang, Hongqu	He, Yueran, Tang, Hongqu (2025): Synonymic notes on two Mongolian Cryptotendipes species (Diptera, Chironomidae). Zootaxa 5590 (2): 294-300, DOI: 10.11646/zootaxa.5590.2.10, URL: https://doi.org/10.11646/zootaxa.5590.2.10
