Redescription of Formosan subterranean termite, Coptotermes formosanus (Blattodea: Rhinotermitidae), with three new synonyms from China Author Chen, Guan-Yu Department of Entomology, National Chung Hsing University, 145 Xingda Rd., Taichung, 40227, Taiwan Author Ke, Yun-Ling Institute of Zoology, Guangdong Academy of Science. No. 105 Xingang Road West, Guangzhou, 510260, Guangdong Author Liang, Wei-Ren Department of Entomology, National Chung Hsing University, 145 Xingda Rd., Taichung, 40227, Taiwan Author Li, Hou-Feng Department of Entomology, National Chung Hsing University, 145 Xingda Rd., Taichung, 40227, Taiwan houfeng@nchu.edu.tw text Acta Entomologica Musei Nationalis Pragae 2020 Acta. Ent. Mus. Natl. Pragae 2020-11-10 60 2 599 608 http://dx.doi.org/10.37520/aemnp.2020.041 journal article 10.37520/aemnp.2020.041 1804-6487 9F167CB8-B5E5-4DF0-8C0B-94007FBD1FC8 Coptotermes shanghaiensis Xia & He, 1986 Type locality. China : Shanghai [中 Ṟ 上海]. Type material examined. In the original description, the collection information of type specimens is: China : Shanghai [上海], (soldier, alate, and worker), No: 09003454, 26-VI-1965 , G.-J. CIJൾඇ [Ḵ国ẁ]. We did not find this type specimen at SEM, but find a specimen with the same collection locality, date, and collector as following: China : Shanghai [上海ÿ化局], 26-VI-1965 , G.-J. CIJൾඇ [Ḵ国ẁ], No. 2303, Cop. Orthognathus , Coptotermes orthognathus = ( P. ) shanghainesis Xia et He, 1986 [new label], 37A. We suggest this specimen was derived from the type specimens. Additional material examined. CHINA : Shanghai [上海], 26-VI-1965 , G.-J. CIJൾඇ, 8A, 1N,>10W, No: 3855; Shanghai [上海], 30-VII-1965 ,>10S,>10W,No: 3683; Shanghai [上海], 9-V-1957 , 7S,>10W, No:1845. Remarks. According to Xංൺ & Hൾ (1986), C. shanghaiensis could be differentiated from C. formosanus based on three characters of winged imagos: smaller wing length than that of C. formosanus ; narrower pronotum width than that of C. formosanus ; and narrower head width than that of C. formosanus . One diagnostic character of soldier caste was mentioned: elliptical or rounded head, in contrast to the pear-shaped head of C. formosanus . No soldier specimen of C. shanghaiensis from the type location was available for this study. The winged imagos of C. shanghaiensis can be distinguished from C. formosanus by the morphometric variation of pronotum ( Table 4 ). Although no difference between C. shanghaiensis and C. formosanus was found in the setae distribution and other characters examined by us, the taxonomic status of C. shanghaiensis needs further investigation. Soldier and winged imagos collected from multiple colonies in the type locality and their molecular sequences are required.