168 
Fig. 4. Papa of same; enlarged 1 nine diameters. 
Fig. 5. Imago of same; enlarged eight diameters. 
Fig. 6. Cardiophorus sp., larva, dorsal view; enlarged four diameters. 
PLATE V. 
Fig. 1. Drasterius elegans, imago; enlarged seven and one half diameters. 
Fig. 2. Larva of same; enlarged seven diameters. 
Fig. 3. Caudal segment of larva, more enlarged. 
Fig. 4. The Wheat Wireworm, Agriotes mancus , imago; enlarged seven 
diameters. 
Fig. 5. Larva of same, enlarged five diameters. 
Fig. 6. Side view of same. 
PLATE YI. 
Fig. 1. Agriotes pubescens, imago; enlarged six diameters. 
Fig. 2. Melanotus fissilis , imago; enlarged three and four fifths diameters. 
Fig. 3. Melanotus communis , imago; enlarged four diameters. 
Fig. 4. Side view of a middle segment of larva of same species, showing 
muscular impression, spiracle, etc. 
Fig. 5. Caudal segment of same, dorsal view; greatly enlarged. 
Fig. 6. The Corn Wireworm, Melanotus cribulosus , larva; enlarged four 
diameters. 
Fig. 7. Side view of a middle segment of same. 
Fig. 8. Caudal segment, dorsal view; greatly enlarged. 
PLATE VII. 
Fig. 1. The Corn Wireworm, Melanotus cribulosus, imago; enlarged four 
and a half diameters. 
Fig. 2. Asaphes decoloratus , imago; enlarged four and one fifth diameters. 
Fig. 3. Larva of same, dorsal view; enlarged three and three fourths 
diameters. 
Fig. 4. Caudal segment of same: more enlarged. 
Fig. 5. The Corn Root Aphis, Aphis maidiradids, oviparous female; en¬ 
larged fourteen diameters; a, hind tibia, showing sensoria. 
Fig. 6. Male of same species; enlarged twenty-five diameters; a, antenna. 
PLATE VIII. 
Fig. 1. The Corn Root Aphis, Aphis maidiradicis , wingless viviparous 
female; enlarged — diameters; a, apex of abdomen showing cornicles, 
tubercles, and cauda. 
Fig. 2. Antenna of same. 
Fig. 3. Pupa of same species; enlarged twenty-one diameters. 
