| Publication Type: | Book Chapter |
| Year of Publication: | 1891 |
| Authors: | S. W. Williston |
| Editor: | F. D. Godman, Salvin O. |
| Book Title: | Biologia Centrali Americana, Zoologia - Insecta - Diptera |
| Volume: | 3 |
| Pagination: | 1-56; 57-72; 73-78, pl. 1, 2, figs. 1-12 |
| City: | London |
| URL: | http://www.sil.si.edu/digitalcollections/bca/navigation/bca_16_03_00/bca_16_03_00select.cfm |