47 
2 Roots ray injured or destroyed by perforations, gnawing, bur- 
rowing, decay, or other loss of substance. Page 96. 
a. Roots eaten away, not burrowed or perforated, and “without 
rotten or withered tips; tap-root commonly gone or 
decayed. White grubs in soil among or beneath the 
roots. Page 96. 
White Grubs. Page 96. 
Lachnosterna rugosa. (Plate XII., Fig. 1-3.) Page 122. 
Lachnosterna fusca. (Plate XIL., Fig. 4 and 5.) Page 
121. ° 
Lachnosterna inversa. (Plate XII., Fig. 5.) Page 121. 
Lachnosterna hirticula. (Plate XIL. , Fig. 3.) Page 122. 
Lachnosterna gibbosa. (Plate XII. , Fig. 6 and 7. i Page 
TT SAR SE a eee mae PE ce ee 
i ifn ep pale ae 
id _ J %e at Av ° 
122. 
Cyclocephala immaculata. (Plate XII., Fig. 8; and 
. Plate XIII., Fig. 1 and 2.) Page 121. 
Allorhina nitida (The Green June Beetle). (Plate XIII., 
Fig. 7.) Page 127. 
\ Prionus laticolls. (Plate XIII., Fig. 4.) Page 128. 
* Prionus imbricornis. (Plate yagob , Fig. 3.) Page 128. 
| b. Roots penetrated, perforated, irregularly burrowed, and more 
or less eaten off and eaten up. Underground parts of 
stalk also usually similarly injured. Page 129. 
Wireworms in soil among the roots. Page 24. 
Wireworms. Pages 24, 41, 42. 
Cardiophorus sp. (Plate IV., Fig. 6.) Page 28. 
Drasterius elegans. (Plate V., Fig. 1-3.) Page 29. 
Agriotes mancus (‘The Wheat Wireworm). Plate V., 
Fig. 4-6.) Page 82. 
Agriotes pubescens. (Plate Vi Pigs.) Pagensa: 
Melanotus communis. (Plate VI., Fig. 3-5.) Page 34. 
Melanotus fissilis. (Plate VI., Fig. 2.) Page 36. 
Melanotus infaustus. Page 36. 
Melanotus cribulosus (The Corn Wireworm). Plate 
VI., Fig. 6-8; and Plate VII., Fig. 1.) Page 37. 
Asaphes decoloratus. (Plate VII., Fig. 2-4.) Page 39. 
Small, slender, soft-bodied, yellowish white grubs in the 
roots and earth. Page 129. 
Diabrotica 12-punctata (The Southern Corn Root 
Worm). (Plate XIV., Fig. 1-5.) Page 129. 
e. Roots visibly penetrated and perforated scarcely at all; some- 
times decayed at tips, but not eaten away. Principal 
injury interior, in form of minute burrows which are 
commonly longitudinal, discoverable -on peeling or 
splitting the root, the burrows sometimes containing 
minute slender white six-legeed Jarve, with brown 
head and neck and brown patch on last segment. Page 
135. 
