e 
84 Mr. M‘Lachlan’s Notes on Odonata. 
band preceding the opaque apical space in the posterior 
wings. I have seen two males. 
Mecistogaster linearis, Fab. 
Many examples of both sexes, presenting remarkable 
variations in pterostigmatical conditions. 
Mecistogaster Marchali, Rambur. 
Several examples. 
