170 
Fig. 4. Lachnosterna fusca, male imago; enlarged two diameters; a, last 
two ventral segments. 
Fig. 5. Lachnosterna inversa or fusca , last abdominal segment of larva, 
seen from beneath; enlarged six diameters. 
Fig. 6. Lachnosterna gibbosa, male imago; enlarged two diameters; a, last 
two ventral segments; b, spurs at tip of hind tibia. 
Fig. 7. Larva of same, last abdominal segment; seen from beneath; en¬ 
larged six diameters. 
Fig. 8. Cyclocephala immacnlata , last abdominal segment of larva, seen 
from beneath; enlarged six diameters. 
PLATE XIII. 
Fig 1 . Cyclocephala immaculata , larva; enlarged three and one third diam¬ 
eters. 
Fig. 2. Imago of same; enlarged three diameters. 
Fig. 3. Prionus imbricornis , imago; natural size, 
ig. 4. Prionus laticollis , imago, natural size. 
Fig. 5. Prionus, larva; natural size. 
Fig. 6. Prionus, pupa; natural size. 
ig. 7. The Green June Beetle, Allorhina nitida; a, larva; b, pupa: c, male 
imago; all enlarged one and a half diameters; d, e, /, g, mandible, antenna, 
leg, and maxilla of larva; more enlarged. 
PLATE XIV. 
Fig. 1. The Southern Corn Root Worm, Diabrotica 12-punctata , imago: 
enlarged five and two thirds diameters. 
Fig. 2. Pupa of same, dorsal view; enlarged ten diameters. 
Fig. 3. Ventral view of pupa. 
Fig. 4. Larva of same, dorsal view; enlarged five diameters. 
Fig. 5. Side view of larva. 
Fig. 6. The Northern Corn Root Worm, Diabrotica longicornis, imago; 
enlarged ten diameters. 
Fig. 7. Corn root broken across to show larva of same within, 
ig. 8. Pupa of same; enlarged eight and a half diameters. 
PLATE XV. 
Fig. 1. The Northern Corn Root Worm, Diabrotica longicornis, egg; en¬ 
larged eighty diameters. 
Fig. 2. Larva of same; enlarged six diameters. 
Fig. 3. Head of larva, dorsal view; greatly enlarged. 
Fig. 4. Labrum and leg of larva. 
Fig. 5. Mandible of larva, seen at right angles to cutting edge. 
Fig. 6. The same, seen obliquely from side. 
Fig. 7. The same, seen directly from side. 
Fig. 8. Mouth parts of larva, seen from beneath. 
