468 Trans. Acad. Sci. of St. Louis 
EXPLANATION OF PLATE 
PLaTE XXII 
Fig. 26. Jerseydale, Jefferson Co., Missouri. The road leading up to 
e milk platform harbored the nests of Cerceris raui. 
Fig. 27. Cerceris raui. 
Fig. 28. The nesting site of Cerceris raui at Wickes, Mo. 
Fig. 29. The opening to the burrow of Cerceris raui. 
