Example of an R. Newstead type remounted into Berlese by D. J. Lewis, showing the typical darkening of the mountant as it deteriorates.

 
  Part of: Adams ZJO, Shimabukuro PHF (2018) A cybercatalogue of American sand fly types (Diptera, Psychodidae, Phlebotominae) deposited at the Natural History Museum, London. Biodiversity Data Journal 6: e24484. https://doi.org/10.3897/BDJ.6.e24484