Bombus (Megabombus) koreanus (Skorikov)

An, Jiandong, Huang, Jiaxing, Shao, Youquan, Zhang, Shiwen, Wang, Biao, Liu, Xinyu, Wu, Jie & Williams, Paul H., 2014, The bumblebees of North China (Apidae, Bombus Latreille), Zootaxa 3830 (1), pp. 1-89 : 33

18. Bombus (Megabombus) koreanus (Skorikov)

( Figs 38, 39 )

Hortobombus koreanus Skorikov, 1933b:59 .

Material examined. 4 queens, 85 workers, 10 males (IAB).

Distribution in North China. Primarily in the Yanshan mountains and the Qinling mountains. Common at medium elevations of the Puwa nature reserve and the Lingshan nature reserve in Beijing, the Wulingshan nature reserve in Hebei, the Fuping nature reserve in Shaanxi, and the Xiaolongshan nature reserve in Gansu. Rare at medium elevations of the southern Taihangshan mountains in Shanxi, at the medium elevations on the edge of the Mu Us semi-desert in northern Shaanxi and the loess plateau in central Shaanxi. 32 localities ( Fig. 38 ) between 522–2076 m (IAB).

Similar species in North China. This species is similar in its orange-tailed colour pattern to B. ignitus (see the key; Figs 39 , 121 ).

Distribution in China. Beijing, Hebei, Shanxi, Henan, Shaanxi, Gansu (IAB).

Forage plants. ASTERACEAE : Cosmos bipinnatus ; CUCURBITACEAE : Cucumis sativus ; FABACEAE : Vicia cracca ; BALSAMINACEAE : Impatiens balsamina ; LAMIACEAE : Elsholtzia ciliata , Leonurus sibiricus ; MALVACEAE : Malva cathayensis ; ROSACEAE : Duchesnea indica .

Figures

FIGURES 38 – 39. 38. Map showing the distribution of B. koreanus in North China with records as black spots, the province boundaries in dark grey, and all sites with records of all bumblebee species in light grey. 39. B. koreanus worker from Beijing.

FIGURES 120 – 121. 120. Map showing the distribution of B. ignitus in North China with records as black spots, the province boundaries in dark grey, and all sites with records of all bumblebee species in light grey. 121. B. ignitus worker visiting Carduus acanthoides (Asteraceae) in Shaanxi.