PLAGE. FT. 



Fra. 1.—Gonocephalum depressum. 
Fra. 2. —Gonocephalum hofmannseggi. 
Fig. 3.—Adult of G. hofmannseggi with the elytra and the wings removed to show 
cluster of acarid parasites attached to the body below. 
Fic. 4.—An earlier stage probably of the acarid shown in Fie. 3. 
