Plate XL— UNDER-WING MOTHS. 



The under-wing moths are found resting on the trunks of forest 

 trees ; when at rest, the bright-colored hind wings are covered by 

 the fore wings, and the insects are well-protected by their resem- 

 blance in color to the bark of the trees. 



FIGURE 



1. Catocala concumbens. 



2. Catocala gracilis. 



3. Catocala arnica. 



4. Catocala ultronia. 



5. Catocala relicta. 



