Megachile (Callomegachile) umbripennis Smith, 1853, male a dorsal view b frontal view c frontal view of mandible and labrum d lateral view e frontal view of T7 f ventral view of metasomal sterna g dorsal (left) and ventral (right) views of penis h dorsal view of S8 i S5 j T7.

  Part of: Chatthanabun N, Ascher JS, Pinkaew N, Thanoosing C, Traiyasut P, Warrit N (2020) Resin bees of genus Megachile, subgenera Callomegachile and Carinula (Hymenoptera, Megachilidae) from Thailand with description of a new species. ZooKeys 997: 95-144.