==External links==;From the Smithsonian Institution Archives**Charles P. Alexander Papers, 1905-1979**Charles P. Alexander Papers, 1930-1977*Published works (Under List of 4733 Crane Fly Literature Citations)*Systema Dipterorum Provides complete Charles Paul Alexander Diptera Bibliography*Systema Dipterorum Provides complete list of genera and species described by Charles Paul Alexander (13,446 taxa)*NomenclatorZoologicus Full list of Alexander genera via search (363 genera)
* Systema Dipterorum Provides complete Charles Paul Alexander Diptera Bibliography* Systema Dipterorum Provides complete list of genera and species described by Charles Paul Alexander (13,446 taxa)