Psyche, 1913. 



Vol, XX, Plats I- 



Fig. 1. Spalangia muscidarum Richardson. Adult female ovipositing in pupariuni of Stomoxys cal- 

 citrans Linn. Fig. 2. Egg of Spalangia muscidarum. Fig. 3. Larva of Spalangia muscidarum. 

 Fig. 4. Pupa of Spahmgia muscidarum. 



