Overview of the bee genus Trachusa Panzer, 1804 (Hymenoptera: Apoidea Megachilidae: Anthidiini) from China with description of three new species Niu, Ze-Qing Ascher, John S. Orr, Michael C. Griswold, Terry Zhu, Chao-Dong Zootaxa 2019 2019-07-24 4646 2 251 270 8SNRD Niu Niu & Ascher & Orr & Griswold & Zhu 2019 [151,602,1773,1800] Insecta Megachilidae Trachusa Animalia Hymenoptera 11 262 Arthropoda species wuae sp. nov. Paraanthidium  ( Fig. 11: A–F, male)   Diagnosis:This new species is only known from the male, and it is very similar to  T. muiriand  T. rufobalteata. Wu et al. (1988)and Wu (2006)misidentified it as  T. muiri. Kasparek (2017)reexamined the allotype(male) of  T. muiriin the collection of Mavromoustakis, redescribed the male and provided images. The main differences between the new species and  T. muiriare as follows: T2 with a yellow linear stripe on each side ( Fig. 11D); the genitalia with large, forked gonostylus with two equally strong arms ( Fig. 11F-c). This new species can be distinguished from  T. rufobalteataby the lower half of its supraclypeus being yellow ( Fig. 11B), scutellum slightly emarginate medially ( Fig. 11C), whereas the latter species has an immaculate supraclypeus, scutellum deeply emarginate medially.   FIGURE 6.  Trachusa( Paraanthidium) muiri( Mavromoustakis, 1937), A–E, female. A: Body in lateral view; B: Head in frontal view; C: Mesosoma in dorsal view; D: Metasoma in dorsal view; E: Fore wing in frontal view. Scale bars: 1.0 mm.   FIGURE 7.  Trachusa( Paraanthidium) muiri( Mavromoustakis, 1937), A–H, male. A: Body in lateral view; B: Head in frontal view; C: Mesosoma in dorsal view; D: Metasoma in dorsal view, showing the T1–T4; E: Metasoma in dorsal view, showing the T5–T7; F: Genitalia in dorsal view; G: S7 in ventral view; H: S8 in ventral view. Scale bars: A–F, 1.0 mm; G–H: 0.5mm.   FIGURE 8. Trachusa ( Paraanthidium) xylocopiformis( Mavromoustakis, 1954), A–H, Male. A: Body in lateral view; B: Head in frontal view; C: Mesosoma in dorsal view; D: Metasoma in dorsal view, showing T1–T3; E: Metasoma in dorsal view, showing T4–T6; F: Metasoma in dorsal view, showing T7; G: Metasoma in ventral view; H: Fore wing in frontal view. Scale bars: 1.0 mm.   FIGURE 9.  Trachusa( Paraanthidium) pingdaensisNiu,  sp. nov., A–H, female. A: Body in lateral view; B: Head in frontal view; C: Supraclypeal area in frontal view, showing subantennal suture; D: Mesosoma in dorsal view; E: Metasoma in dorsal view, showing T1–T3; F: Metasoma in dorsal view, showing T4–T6; G: Fore wing in frontal view, showing the position of the second recurrent vein; H: Hind wing in frontal view, showing vein cu–v and f M+Cu. Scale bars: 1.0 mm.   FIGURE 10.  Trachusa( Paraanthidium) staabiNiu,  sp. nov., A–H, female. A: Body in lateral view; B: Head in frontal view; C: Supraclypeal area in frontal view, showing subantennal suture; D: Mandible in frontal view, showing teeth; E: Mesosoma in dorsal view; F: Metasoma in dorsal view, showing T1–T3; G: Metasoma in dorsal view, showing T4–T6; H: Fore wing in frontal view, showing the position of the second recurrent vein. Scale bars: 1.0 mm.   FIGURE 11.  Trachusa( Paraanthidium) wuaeNiu,  sp. nov., A–F, male. A: Body in lateral view; B: Head in frontal view; C: Mesosoma in dorsal view; D: Metasoma in dorsal view; E: Metasoma in ventral view, showing combs on S5; F: Drawing of S7 (a), S8 (b), and genitalia (c), source: Wu (2006). Scale bars: 1.0 mm.  Description:Male, BL= 8.5 mm( Fig. 11A); head broader than long, HW: HL=66: 58 ( Fig. 11B); gena slightly narrower than eye, GW: EW=12: 15; MtW: MsW=174: 180 ( Fig. 11C, Fig. 11D); ocelloccipital distance as long as ocellocular distance, OCD: OOD=10: 10 ( Fig. 11B). Antenna long, reaching the apex of the scutellum, second to tenth flagellomere nearly equal in length, eleventh one slightly longer ( Fig. 11A). Clypeus broader than long, apical margin slightly emarginate in middle, with fine and sparse punctures ( Fig. 11B); subantennal suture obviously arcuate outwardly ( Fig. 11B); mandible with three black teeth ( Fig. 11B); vertex dull, with dense and fine punctures ( Fig. 11B); omaular carina present, extending down to middle of mesepisternum; pronotal carina weak, shorter in height than medial bump of pronotum ( Fig. 11C); scutum shining, with dense rounded punctures ( Fig. 11C); scutellum shining, broadly rounded and slightly emarginate medially, nearly straight along rim, with dense rounded punctures ( Fig. 11C); propodeal enclosure with band of punctures at top interrupted or at least sparser medially; disc of T1–T3 with dense rounded punctures ( Fig. 11D). Head with strong, lemon yellow maculations present on clypeus except for a narrow, brown and translucent apical margin; mandible except the black apex; lower paraocular area entirely up to antennal sockets; and lower half of supraclypeal area ( Fig. 11B); scape black ( Fig. 11B); scutum, scutellum, axilla, and pronotal lobe black ( Fig. 11C); tegula largely black, but center dull reddish black ( Fig. 11C); T1 black, T2 largely black but with a lemon yellow linear stripe on each side, T3–T4 largely black but with a transverse and lemon yellow discal stripe widely notched at each side of the center ( Fig. 11A, Fig. 11D), T5 yellow but with a black marking on each side ( Fig. 11A); underside of S4–S5 with black combs ( Fig. 11E); S7 (a), S8 (b) as shown in Fig. 11F-a, Fig. 11F-b respectively; genitalia with large, forked gonostylus with two equally strong arms ( Fig. 11F-c). Female, unknown.  Type material:  Holotype, ♂, China, Yunnan, Cheli( 23º06′N, 102º10′E),  560 m,  26.IV.1957, leg. Da-HuaLIU ( IZCAS).  General distribution: China( Yunnan*).  Etymology:The specific name is dedicated to Professor Yan-Ru Wu of the Institute of Zoology, Chinese Academy of Sciences for her contributions to bee taxonomy. 2294326342 1957-04-26 IZCAS Da-Hua China 560 23.1 Cheli 1257 102.166664 18 269 1 1 Yunnan holotype