Figs 90–100 in The steppe bumblebees of the subgenus Sibiricobombus revised world-wide from species' gene coalescents and morphology despite numts (Hymenoptera, Apidae, genus Bombus)

Figs 90–100. Morphology of the male genitalia for species of the subgenus Sibiricobombus Vogt, 1911 from the dorsal aspect, anterior at the bottom of the image, posterior at the top. 90. B. sibiricus (Fabricius, 1781). 91. B. semenovi Morawitz, 1887 stat. rev. 92. B. oberti Morawitz, 1883 (left penis-valve head recurved hook missing). 93. B. morawitzi Radoszkowski, 1876. 94. B. sulfureus Friese, 1905 (left penisvalve head recurved hook missing). 95. B. niveatus Kriechbaumer, 1870. 96. B. obtusus Richards, 1951. 97. B. tescorum Williams nom. nov. et stat. rev. 98. B. longiceps Smith, 1878 stat. rev.. 99. B. falsificus Richards, 1930 stat. rev.. 100. B. asiaticus Morawitz, 1875. Images taken by L. Berridge. Scale bars = 1 mm.