Colletes sanctus Cockerell, 1910

Ferrari, Rafael R., Niu, Ze-Qing, Kuhlmann, Michael, Zhang, Dan & Zhu, Chao- Dong, 2021, The cellophane bees of Colletes Latreille (Hymenoptera: Colletidae) from Xizang (Tibet), China, Zootaxa 5022 (1), pp. 1-72 : 23-27

Colletes sanctus Cockerell, 1910

( Figs 13B , 14A–F, 43B)

Colletes sanctus Cockerell, 1910: 241 (holotype ♀: China, Xizang [NHMUK]).

Diagnosis. Among the Tibetan Colletes , both sexes of C. sanctus are readily recognizable by hind basitarsus with dark setae and metasoma entirely black without basal and apical bands. Colletes sanctus is most similar to C. sidemii , however, they can be differentiated by the malar area 1.0× (♀) and 1.4× (♂) as long as basal width of mandible in the former (malar area 0.5× (♀) and 1.0× (♂) as long as basal width of mandible in the latter). Females of the two species can be further distinguished by the mesosoma covered with reddish-brown pubescence in C. sanctus (mesosoma with pale-orange pubescence in C. sidemii ) and males by the S7 apicolateral lobe with neck subequal to disc in C. sanctus (neck much longer than disc in C. sidemii ).

Material examined. Published records — CHINA, Sichuan: Dêgê , 31.80 98.60, 3200 m, 6.vii.1983, XZ Zhang, 1 ♂ . Xizang: Burang Xian, Kejia , 30.30 81.10, 3700 m, 15.vii.1976, FS Huang, 2 ♀ . Comai Xian, Chigu , 28.70 91.40, 4600 m, 28.vii.1974, FS Huang, 5 ♀ . Gyirong , 28.40 85.20, 4100 m, 14.vii.1975, XZ Zhang, 3 ♀ 1 ♂ ; 15.vii.1975, XZ Zhang, 2 ♀ 1 ♂. Gyirong, Lucuolong Lake , 28.40 85.20, 4950 m, 9.viii.1975, XZ Zhang, 6 ♀ . Laazê , 30.70 95.00, 3920 m, 11.vii.1960, CG Wang, 1 ♀ . Ngamring Xian , 29.20 87.20, 4500 m, 18.viii.1975, XZ Zhang, 3 ♀ . Rutog Xian, Rabang , 33.00 80.40, 4450 m, 8.viii.1976, FS Huang, 1 ♀ ; 28.viii.1976, FS Huang, 2 ♀. Sa’gya Xian , 28.90 88.00, 4350 m, 7.viii.1983, ZZ Wang, 4 ♀ . Xigazê Xian , 29.20 88.80, 3800 m, 7.vi.1961, LY Wang, 2 ♀ . Zhongba Xian , 29.36 84.06, 4500 m, 14.viii.1975, ZQ Wang, 11 ♀ 1 ♂ ; FS Huang , 10 ♀ 1 ♂ .

New records — CHINA, Xizang: Ali, Geji, Road G 317 km 3048, 32.0909 82.0529, 4639 m, 26.vii.2020, QT Wu & D Zhang, 8 ♀ 26 ♂ . Ali, Pulan, Chide , 30.2954 81.1427, 4100 m, 18.vii.2020, QT Wu & D Zhang, 14 ♀ 3 ♂ ; 19.vii.2020, QT Wu & D Zhang, 19 ♀ 19 ♂. Ali, Pulan, Pulan , 30.2635 81.1042, 4100 m, 17.vii.2020, QT Wu & D Zhang, 49 ♀ 2 ♂ ; 18.vii.2020, QT Wu & D Zhang, 13 ♀ 1 ♂. Ali, Pulan, Road G 564 km 18, 30.7402 81.3611, 4610 m, 16.vii.2020, QT Wu & D Zhang, 12 ♀ 7 ♂ . Ali, Ritu, Duoma , 33.6661 80.4331, 4490 m, 23.vii.2020, QT Wu & D Zhang, 6 ♀ 23 ♂ . Ali, Ritu, Ritu , 33.3856 79.3638, 4228 m, 24.vii.2020, QT Wu & D Zhang, 27 ♀ 13 ♂ . Ali, Zhada, Zhaburang , 31.4676, 79.6709, 3620 m, 22.vii.2020, QT Wu & D Zhang, 3 ♀ . Bailang, Duqiong, Qiaga , 29.0692 89.2549, 3901 m, 25.vii.2019, D Zhang & QT Wu, 31 ♀ 7 ♂ . Bailang, Luojiang, Banggang , 29.1327 89.3090, 4203 m, 26.vii.2019, D Zhang & QT Wu, 3 ♀ . Gar County, Road G219, 29.4349 85.2223, 4700 m, 21.vii.2018, QT Wu, 8 ♂ . Gar County, Road G 219 km 1053, 32.3551 80.4847, 4557 m, 27.vii.2018, QT Wu, 4 ♀ 3 ♂ . Gar County, Zuozuo Village , 32.3551 80.4847, 4684 m, 29.vii.2018, QT Wu, 46 ♀ 13 ♂ . Jilong, Peiku Lake , 28.7554 85.5865, 4566 m, 4.viii.2019, D Zhang & QT Wu, 34 ♀ 14 ♂ . Kangma, Dalong Village , 28.6754 89.6616, 4200 m, 4.vii.2018, QT Wu, 15 ♂ . Lasa, Duodi Town , 29.7564, 91.1570, 4137 m, 23.vii.2017, D Zhang & QT Wu, 15 ♀ 2 ♂ . Nielamu , Road 4 ♂ . Pulan County, Pulan Town, Chide , 30.2952 81.1423, 3943 m, 13.viii.2019, D Zhang & QT Wu, 2 ♀ . Pulan County, Pulan Town, Kejia , 30.2013 81.2512, 3794 m, 12.viii.2019, D Zhang & QT Wu, 23 ♀ . Pulan County, Pulan Town, Rengong , 30.4535 81.1523, 4300 m, 11.viii.2019, D Zhang & QT Wu, 5 ♀ . Rikaze, Bailang, Qiaga , 29.0694 89.2548, 3916 m, 21.vi.2020, QT Wu & D Zhang, 1 ♀ 1 ♂ . Rikaze, Dingri, Changsuo , Zacun , 28.5273 87.4925, 4109 m, 2.vii.2020, QT Wu & D Zhang, 2 ♀ 4 ♂ . Rikaze, Jilong, Road G 216 km 3433, 28.8233 85.2958, 4023 m, 6.vii.2020, QT Wu & D Zhang, 7 ♀ 9 ♂ . Rikaze, Tingri County, Za Village , 28.5319 87.5345, 4174 m, 12.vii.2018, QT Wu, 90 ♀ 3 ♂ ; 14.vii.2018, QT Wu, 25 ♀ 8 ♂. Saga County, Road G219, 29.4349 85.2223, 4700 m, 21.vii.2018, QT Wu, 20 ♀ . Saga County, Rujiao Town, Majin , 29.5707 84.8176, 4267 m, 10.viii.2019, D Zhang & QT Wu, 8 ♀ . Shannan, Naidong , 29.1156 91.7125, 3574 m, 28.vii.2017, D Zhang & QT Wu, 1 ♂ . Zhongba County, Zhuzhu Village , 29.8627 83.7947, 4717 m, 21.vii.2018, QT Wu, 11 ♀ 2 ♂ .

Distribution. Western China (Sichuan and Xizang) and northern India (Sikkim).

DNA barcode. Available (4 ♀ and 6 ♂). See also Fig. 1 and Table 1.

Floral hosts. Leguminosae: Astragalus sinicus L.; Thymelaeaceae : Stellera chamaejasme L.

Remarks. Colletes sanctus was by far the most abundant species of the genus among the material collected in Xizang between 2014–2020, corresponding to roughly one third (688 of 2050) of the specimens.

Figures

FIGURE 1. Neighbor-joining tree based on the barcode data of the sequenced specimens of Colletes. Further information on the voucher codes shown on the tree can be found in Table 1.

FIGURE 13. Confirmed geographic records of the Colletes species found in Xizang based on the examined material. (A) C. paratibeticus; (B) C. sanctus; (C) C. sidemii; (D) C. splendidus sp. nov.