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Overview of the Bee Genus Trachusa Panzer, 1804 (Hymenoptera: Apoidea: Megachilidae: Anthidiini) from China with Description of Three New Species

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Overview of the Bee Genus Trachusa Panzer, 1804 (Hymenoptera: Apoidea: Megachilidae: Anthidiini) from China with Description of Three New Species See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/334656199 Overview of the bee genus Trachusa Panzer, 1804 (Hymenoptera: Apoidea: Megachilidae: Anthidiini) from China with description of three new species Article in Zootaxa · July 2019 DOI: 10.11646/zootaxa.4646.2.3 CITATIONS READS 0 36 5 authors, including: Ze-Qing Niu John S. Ascher Chinese Academy of Sciences National University of Singapore 58 PUBLICATIONS 194 CITATIONS 126 PUBLICATIONS 2,889 CITATIONS SEE PROFILE SEE PROFILE Michael Orr Chao-Dong Zhu Chinese Academy of Sciences Chinese Academy of Sciences 16 PUBLICATIONS 42 CITATIONS 314 PUBLICATIONS 1,978 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Methods to bridge species diversity, species interaction and evolutionary biology View project Pollinator Insects Forum View project All content following this page was uploaded by Chao-Dong Zhu on 31 July 2019. The user has requested enhancement of the downloaded file. Zootaxa 4646 (2): 251–270 ISSN 1175-5326 (print edition) https://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2019 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4646.2.3 http://zoobank.org/urn:lsid:zoobank.org:pub:C786FF36-DDD7-4BA3-B5DD-555093A7C15B Overview of the bee genus Trachusa Panzer, 1804 (Hymenoptera: Apoidea: Megachilidae: Anthidiini) from China with description of three new species ZE-QING NIU1, JOHN S. ASCHER2, MICHAEL C. ORR1, TERRY GRISWOLD3 & CHAO-DONG ZHU1,4,5,6 1Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 1 Beichen West Road, Chaoyang District, Beijing, 100101, P. R. China. E-mail: [email protected]; E-mail: [email protected] 2Department of Biological Sciences National University of Singapore, 14 Science Drive 4, Singapore 117543, Singapore. E-mail: [email protected] 3USDA-ARS Pollinating Insects Research Unit, Utah State University, Logan, Utah 84322-5310, USA. E-mail: [email protected] 4State Key Laboratory of Integrated Pest Management, Institute of Zoology, Chinese Academy of Sciences, 1 Beichen West Road, Chaoyang District, Beijing, 100101, P. R. China. 5College of Life Sciences, University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing, P. R. China 100049 6Corresponding author. E-mail: [email protected] Abstract The Chinese bees of the genus Trachusa Panzer, 1804 are reviewed. Nine species are confirmed to occur in China. Three new species are described and illustrated: Trachusa (Paraanthidium) pingdaensis Niu, sp. nov., T. (P.) staabi Niu, sp. nov. and T. (P.) wuae Niu, sp. nov. The distribution of each species is given. An illustrated key to the Chinese species is provided. Key words: Apiformes, review, fauna, illustration, taxonomy Introduction The genus Trachusa was erected by Georg Wolfgang Franz Panzer in 1804 for the type species Trachusa serratulae Panzer, 1804. Pasteels (1969, 1972) classified the Old World Trachusa in seven subgenera. Protanthidium Cockerell et Cockerell, 1911 was regarded as a synonym of Paraanthidium Friese, 1898 (Mavromoustakis, 1937; Sandhouse, 1943). Later, Michener & Griswold (1994) assigned the genus Archianthidium Mavromoustakis, 1939 as another subgenus of Trachusa and subdivided Trachusa into 11 subgenera (Michener 2000, 2007). Kasparek (2017) gave a key to seven subgenera in the Old World and attributed 49 species to the genus of Old World and New World. Kasparek (2018) published a new species from southern Africa and regarded the subgenus Massanthidium Pasteels as a junior synonym of Paraanthidium, thus reducing the number of subgenera to 10 worldwide (see the subgeneric list in the systematics). At present, only two subgenera (Orthanthidium and Paraanthidium) are recorded in China. Wu (2006) recorded 15 species from China, one under the subgenus Orthanthidium and 14 under the subgenus Paraanthidium, provid- ing morphological characters to distinguish them and a key to the Chinese species of Paraanthidium. There are few clear morphological features which characterize the genus Trachusa unambiguously (Kasparek 2017). Many species assigned to Trachusa by Wu (2006) should be transferred to other genera in the tribe Anthidiini (Niu et al. 2016; Kasparek 2017). Subsequently, only five species of them remain in the genus Trachusa. This study leverages the underused collection of the Institute of Zoology, Chinese Academy of Sciences, Bei- jing, China (IZCAS) to review the Chinese species of this difficult group of bees. We confirm nine species of Trachusa occurring in China (Table 1), including three new species, verify and expand upon the information of previously described Chinese species, and provide illustrations. Accepted by J. Gibbs: 21 Jun. 2019; published: 24 Jul. 2019 251 TABLE 1. Summary of species of Trachusa currently recognized from China with information on the known sexes and distributions. Sex: ♂ = male; ♀ = female. * represents a new distributional record. Species Name in Wu (2006) Sexes Distribution known Trachusa (Orthanthidium) Trachusa (Paraanthidium) ♀, ♂ China (Beijing, Tianjin*, cornopes Wu, 2004 cornopes Wu, 2004 Shanxi*, Shaanxi, Hubei) Trachusa (Orthanthidium) Trachusa (Orthanthidium) ♀, ♂ China (Guizhou, Fujian, formosana (Friese, 1917) formosanum (Friese, 1917) Guangdong*, Taiwan) Trachusa (Paraanthidium) Trachusa (Paraanthidium) ♀, ♂ India, Nepal, China longicornis (Friese, 1902) longicorne (Friese, 1902) (Yunnan) Trachusa (Paraanthidium) Trachusa (Paraanthidium) ♀, ♂ China (Fujian, Jiangxi, maai (Mavromoustakis, 1953) maai (Mavromoustakis, 1953) Guangxi, Guizhou) Trachusa (Paraanthidium) Trachusa (Paraanthidium) ♀, ♂ China (Zhejiang*, Fujian, muiri (Mavromoustakis, 1937) muiri (Mavromoustakis, 1937) Guangdong, Yunnan) Trachusa (Paraanthidium) pingdaen- ♀ China (Yunnan)* sis Niu, sp. nov. Trachusa (Paraanthidium) staabi ♀ China (Zhejiang*, Fujian*) Niu, sp. nov. Trachusa (Paraanthidium) wuae Niu, ♂ China (Yunnan)* sp. nov. Trachusa (Paraanthidium) xylocopi- ♂ China (Fujian, formis (Mavromoustakis, 1954) Guangdong*) Materials and methods All specimens examined (76/83 specimens) in this study are deposited in the Insect Collection of the Institute of Zoology, Chinese Academy of Sciences, Beijing, China (IZCAS). In the species accounts only specimens not from IZCAS have the institution indicated by the city where the museum is located. The specimens were examined with a Nikon SMZ 1500 stereomicroscope and images were recorded with a Nikon D7000 digital camera. The morphological terminology follows Michener (2007). Absolute measurements, in millimeters (mm), are used for length of body. For all other structures, relative measurements are used. Abbreviations used in the description are as follows: BL (body length): measured from the base of the antennal socket to the apex of the metasoma; HL (head length): measured from the apicomedial margin of the clypeus to the upper margin of the vertex in frontal view; HW (head width): measured at the widest point of the head across the compound eyes in frontal view; EW (eye width): the greatest width of eye in lateral view; GW (genal width): the greatest width of the gena in lateral view; MsW (mesosomal width): measured between the outer rims of the tegulae in dorsal view; MtW (metasomal width): the greatest width of the metasomal tergum in dorsal view. Abbreviations T1, T2…, S1, S2…and F1, F2…, respectively, denote the first, second, etc., segments of terga, sterna and flagellomeres. New distribution records are marked by an asterisk (*). Systematics Trachusa Panzer, 1804 Trachusa (Archianthidium): Archianthidium Mavromoustakis, 1939: 91. Type species: Anthidium laticeps Morawitz, 1874, by original designation. Trachusab (Congotrachusa): Trachusa (Congotrachusa) Pasteels, 1969: 24. Type species: Anthidium schoutedeni Vachal, 1910, by original designation. Trachusa (Heteranthidium): Anthidium (Heteranthidium) Cockerell, 1904: 292. Type species: Anthidium dorsale Lepeletier, 1841, by original designation. Trachusa (Legnanthidium): Trachusa (Legnanthidium) Griswold & Michener, 1988: 27. Type species: Anthidium ridingsii Cresson, 1878, by original designation. 252 · Zootaxa 4646 (2) © 2019 Magnolia Press NIU ET AL. Trachusa (Metatrachusa): Trachusa (Metatrachusa) Pasteels, 1969: 22. Type species: Anthidium pendleburyi Cockerell, 1927, by original designation. Trachusa (Orthanthidium): Paraanthidium (Orthanthidium) Mavromoustakis, 1953: 837. Type species: Anthidium formosanum Friese, 1917, by original designation. Trachusa (Paranthidium): Anthidium (Paraanthidium) Friese, 1898: 101. Type species: Apis interrupta Fabricius, 1781, by designation of Cockerell, 1909: 269. Trachusa (Trachusa): Trachusa Panzer s. str., 1804: expl. pl. 14–15. Type species: Trachusa serratulae Panzer, 1804 = Apis byssina Panzer, 1798, by designation of Sandhouse, 1943: 605. Trachusa (Trachusomimus): Trachusomimus Popov, 1964: 406. Type species: Trachusa perdita Cockerell, 1904, by original designation. Trachusa (Ulanthidium): Ulanthidium Michener, 1948: 13. Type species: Ulanthidium mitchelli Michener, 1948, by original designation. Diagnosis: The genus Trachusa Panzer, 1804 consists of moderate-sized to large megachiliform anthidiine bees, the body length of which varies from 8.5 mm to 20 mm. A carina on the pronotal lobe and the omaulus is often absent, but if present may take the form of a lamella (Kasparek, 2017). The
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