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2. The external morphology of the male genitalia of muscoid Diptera;Crampton;Connecticut Geol. Nat. Hist. Surv. Bull.,1942
3. A comparative morphological study of the terminalia of male calypterate cyclorrhaphous Diptera and their acalypterate relatives;Crampton;Bull. Brooklyn Entomol. Soc.,1944
4. Diptera;Emden,1956