Figures 20-24 from: Sarzetti L, Genise J, Sanchez M (2012) Trichothurgus bolithophilus sp. n. (Hymenoptera, Megachilidae) a bee nesting in horse manure pads in Patagonia, Argentina. Journal of Hymenoptera Research 29: 1-14. https://doi.org/10.3897/jhr.29.3529

Figures 20-24 - Trichothurgus bolitophilus Durante & Roig Alsina, sp. n. 20 female holotype, habitus 21 female paratype Pampa Pelada, face 22 female paratype Pampa Pelada, detail of clypeus and facial prominence 23 female paratype Pampa Pelada, labrum: k, median longitudinal keel; p, paramedian carina; l, lateral carina; f, longitudinal furrow; c, preapical constriction 24 male, face.