13. Bombus (Megabombus) supremus Morawitz

(Figs 28, 29)

Bombus supremus Morawitz, 1887:196 . Bombus linguarius Morawitz, 1890:351 .

Material examined. 7 workers (IAB).

Distribution in North China. Only on the edge of east and northeast Qinghai-Tibetan plateau. Rare at high elevations of the Lianhuashan nature reserve and the Qilianshan nature reserve in Gansu. 4 localities (Fig. 28) between 2874–3386 m (IAB).

Distribution in China. Xizang, Gansu, Qinghai (IAB).

Forage plants. ALLIACEAE: Allium cyaneum; GERANIACEAE: Geranium pratense; RANUNCULACEAE: Aconitum gymnandrum, Delphinium grandiflorum; SCROPHULARIACEAE: Pedicularis kansuensis .