164 
BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
L311. Riley, C. Y.—Continued. 
» Summary. 138 
Successful silk culture possible iu this country, 138—Comparative 
value of the different species of silkworms, 138. 
INNOXIOUS INSECTS. 
The horned Passalus, Passalus cornutus . 139 
Its frequent occurrence in old logs, 139—The noise produced by the 
beetle, 139—It occurs only in decaying wood, 140—The larva 
and its exceptional character, 140—Description of the larva, 
140—Previous description of Passalus larvae, 141—Description of 
the pupa, 141. 
The great leopard moth, Ecpantheria scribonia . 141 
Characters of the larva, 141—Food-plants, 142—Hibernation and 
transformations, 142—The imago, 142—The larva able to resist 
extreme cold, 143—Description of the larva, 143. 
The Isabella tiger moth, Pyrrliarctia Isabella . 143 
Characters of the larva, 143—Food-plants, 143—Cocoon and chry¬ 
salis, 143—The moth, 144—The popular name “ fever- worm ” iu 
the South, 144—No parasite known of this and the preceding spe¬ 
cies, 144. 
The acorn moth, Uolcocera glandulella . 144 
The egg laid in acorns that have been ruined by Balaninus rectus, 
144— Habits of the larva, 144—Characters of larva and moth, 
145— Description of imago, larva, and pupa, 145. 
1312. Riley, 0. Y. Thomas WiePs apple-worm trap. <Amer. Agric., 
April, 1872, v. 31, pp. 142-143, 1 fig. 
Description and figure of Wier’s apple-worm trap. 
1313. [Riley, C. Y.] Remarkable parasitic fungus. <Sci. Arner., 25 
May, 1872 [v. 40], n. s., v. 26, p. 347. 
Description and figure of unidentified fungus infesting the larva of the white 
grub, Lachnosterna fusca. 
1314. Riley, C. V. Cut-worm lion. <Colman , s Rural World, 15 June, 
1872, fig. S.-b. No. 5, p. 47. 
History of the larva and imago of Calosoma calidum, an enemy to cut-worms. 
1315. Riley, C. Y. Cut-worms. <Cultivator and Country Gentleman, 
20 June, 1872, v. 37, p. 392. 
Dandelions and other weeds furnish food for young cut-worms which hatch 
iu the fall; laud should be kept clear of weeds at that season. 
1316. Riley, C. Y. Flat-headed apple tree-borer in horse chestnut. 
<Colman’s Rural World, 22 June, 1872, fig. S.-b. No. 5, p. 47. 
Answer to inquiry of S. S. R.; natural history of larva and imago of Chri/so- 
botliris femorata. 
1317. Riley, C. Y. A new insect. <Western Planter, 29 June, 1872. 
S.-b. No. 5, p. 49. 
Answer to inquiry of F. Halsinger; Nysius n. sp., very destructive to jjo- 
tatoes. 
1318. Riley, C. Y. Codling - moth; jarring down infested fruit. 
<Cultivator and Country Gentleman, 4 July, 1872, v. 37, p. 422. 
Excrement outside of the fruit indicates the exit of the worm, with some 
varieties; with others the worm may be often found after the excrements 
are visible. 
