EXPLANATION OF PLATE L 



Wing margin of Xylophasia monoi^/v/'ha x 150, showing an 

 extremity of a nervure where it meets margin, with the two circles. 



The scales of the wing surface can be made out in the photo- 

 graph, but in this reproduction are too hazy to appear. Those of 

 the fringe are visible. Four bristles are very distinct, as they do not 

 bleach like the scales do. The scale sockets are sufficiently distinct. 



