A Ptilothrix chiricahua sp. nov. male S7 B Ptilothrix chiricahua sp. nov. male S8 C Ptilothrix zacateca sp. nov. male S7 D Ptilothrix zacateca sp. nov. male S8 E Ptilothrix sumichrasti male S7 F Ptilothrix sumichrasti male S8 G Ptilothrix bombiformis male S7 H Ptilothrix bombiformis male S8.

 
 
  Part of: Flórez-Gómez N, Danforth B (2023) The North American bees of the genus Ptilothrix Cresson, 1878 (Hymenoptera, Apidae, Emphorini), with the description of two new species. Journal of Hymenoptera Research 95: 275-293. https://doi.org/10.3897/jhr.95.96025