BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
1(55 
1319. Riley, C. V. Food for silkworms. <Colman’s Rural World, 13 
July, 1872. S.-b. No. 5, p. 40. 
Osage orange superior to red-mulberry. 
1320. Riley, C. V. The apple maggot-fly, Trypeta pomonella Walsh. 
<Amer. Agric., July, 1872, v. 31, pp. 263-2(34, 2 figs. 
Answer to letter of J. H. Spatter; comparative descriptions and figures of 
larvae, pupae, and imagos of Trijpeta, pomonella and Carpocapsa pomonella ; 
figures showing injuries of both species; distribution and means against 
Trijpeta pomonella. t 
1321. Riley, C. Y. Worms on Dutchman’s pipe. <Colman’s Rural 
World, 3 August, 1872, fig: S.-b. No. 5, p. 136. 
Answer to inquiry of J. T. C.; life-bistory of Papilio philenor. 
1322. Riley, C. Y. Apple-leaf worm. The apple-leaf skeletonizer. 
<Colman’s Rural World, 10 August, 1872, fig. S.-b. No. 5, 
p. 138. 
Answer to inquiry of L. R. Bryant; habits and times of appearance of Pem- 
pelia hammondi. 
1323. Riley, C. Y. Eggs in grape-canes and apple-twigs. <Amer. 
Agric., August, 1872, v. 31, p. 302, figs. 1-7. 
Figures of eggs and of twigs punctured by Orocharis saltator, CEcanthus niveus, 
and Ceresa bubalus ; figures imagos of the same ; habits, descriptions of eggs, 
and imagos of the three species. 
1321. Riley, C. Y. Borers iu evergreens. <Gardener’s Mo. and 
Hortic., December, 1872, v. 14, p. 373. 
Larvse of Monoliammus titillator the worst euemy of the white-pine; another 
species of Cerambijculas injurious to red-cedars; a host of bark-borers affect 
all kinds of evergreens. 
1325. Riley, C. Y. Einige unserer schadlicherer Insekten. <St. 
Louis, Mo., 1872, p. 35, il. S.-b. No. 19, pp. 174-190. 
Causes of the decadence of viticulture in the United States ; habits, ravages, 
specific identity, and figures of several stages of the leaf-inhabiting and 
root-inhabiting forms of Phylloxera vastatrix ; identity of the European 
and American grape Phylloxera ; susceptibility of the different species of 
grape to the attacks of the same; principal manifestations of attack ; pre¬ 
ventive and remedial measures; description and figures of Conotrachelus 
nenuphar ; habits, ravages, parasites, enemies, and means against it; de¬ 
scription of Ransom’s trap, Hull’s, Ward’s, and Hooten’s machines for cap¬ 
turing the imagos ; figures of the machines. Natural history, food-plants, 
distribution, enemies, parasites, and means against Doryphora decemlineata ; 
figures of all stages of the same ; use of Paris green and other powders ; 
mechanical devices for collecting the insects. 
1326. Riley, C. Y. Harvest mites. <Amer. Nat., January, 1873, v. 
7, pp. 16-19, fig. 5. Extract: <Colman’s Rural World, 21 June, 
1876, 2 figs. S.-b. No. 10, pp. 170, 171. 
List of insect parasites on man; description, figures, habits of and means 
against Leptus [= Tetranychus ] americanus n. sp. and L. [= T. ] irritans n. sp. 
1327. Riley, C. Y. Vanessa antiopa. <Ent. Mo. Mag., January, 1873, 
v. 9, p. 195. 
Habits and food-plants of Vanessa antiopa. 
