294 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
2119. Kiley, <J. Y.—Continued. 
Scale insects of the orange—C ontinued. 
enemies of scale insects, 49—Ilyinenopterous parasites the most 
efficient destroyers, 49—Sadden outbursts of the pest, 50—De¬ 
struction of the scales by their own undue increase, 51—Injury 
inflicted on young trees, and faulty methods of destroying the 
scales, 51—Recapitulation, 51—Remedies, 52—Danger in apply¬ 
ing undiluted volatile oils, 52—Kerosene, when properly applied, 
not injurious to the tree, 52 — Process of preparing kerosene 
butter, 52—Nature of kerosene butter, 53—How it should he ap¬ 
plied, 54—The kerosene butter a sure remedy, 54—How it affects 
the scales and the eggs, 54 — The aquapult force-pump very 
convenient for applying kerosene emulsions, 54—Effect of kero¬ 
sene emulsion on the tree, 55—Kerosene emulsions experimented 
with, 55—Whale oil soap as remedy, 56—Oil of creosote, its 
effect on scale insects and on the trees, 56—Saponaceous com¬ 
pounds of creosote, 57—Creosote inferior to kerosene as insecti¬ 
cide, 57—Various other substances as remedies, 57—Tables of 
experiments, 60—Note on more recent discoveries in producing 
kerosene emulsions, by C. V. Riley, 67. 
Insects affecting the rice-plant.... 
Rice production in the United States in 1879, 67. 
The rice-grub, Chalepus trachypygus ... 
Mr. L. O. Howard’s observations on the occurrence and habits of 
the insect, 68—It can easily be kept in check, 68—Structural char¬ 
acters and geographical distribution of the genus Chalepus, 69— 
Description of imago and larva, 69. 
The water-weevil, Lissorhoptrus simplex .... . 
Colonel Screven on the specific identity of “the maggot” and “the 
water-weevil,” 70—Mr. L. O. Howard’s report on the occurrence 
of larva and beetle in rice-fields, 70—Habits of the beetle, 71— 
Remarkable shape of the larva, 71—Characters of the genus Lis¬ 
sorhoptrus, 72—Description of .the imago, 72—Description of the 
larva, 72. 
The rice-stalk borer, Chilo oryzceellus . 
Mr. Howard’s account of the work of the larva and the damage 
caused by it, 73—Enemies, 74—Preventive measures, 74—Difficul¬ 
ties in the specific determination of the insect, 74—Characteris¬ 
tics of the genus Chilo, 75—Description of the moth, 75—Descrip¬ 
tion of larva and pupa, 75. 
White blast. 
Colonel Screven’s account of the disease, 76—Mr. Howard’s observa¬ 
tions on the insects found on the diseased plants, 77—The blast 
possibly caused by insect work, 77. 
Other insects injurious to growing rice.1.. 
The “grass-worm” and its injury, 78—The “lubber grasshopper,” 
78 —Acridium obscurum and various Heteroptera, 78. 
Insects affecting corn or maize. 
The corn-bill bug, Spbenophorus robustus . 
Species of Spheuophorous injurious to agriculture, 78—Nature of 
damage done by the beetles, 79—Mr. Howard’s report on the work 
of the larva and its development, 79—Preventive measures,. 80— 
Burning the stubble in wintertime to be recommended, 80—Gen¬ 
eric characters of Sphenophorus and its natural groups, 80—Diag¬ 
nosis of the imago, 81—Description of the larva, 81—Larva of 
