@misc{indiciaeff6f1a818be4,
  title = {Experiments with "stingless bees" (Trigona cressoni parastigma) concerning their ability to distinguish ultraviolet patterns — Illustration, Page 18},
  year = {1933},
  url = {https://www.biodiversitylibrary.org/page/64986121},
  note = {Source identifier: page-64986121}
}