BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
151 
2284. Riley, C.V., and Howard, L. O. Immunity of Southern Dakota 
from the chinch bug. <Insect Life, v. 1, March, 1889, p. 294. 
2285. Riley, 0. V., and Howard, L. O. The periodical cicada in 
1889. <Inseet Life, v. 1, April, 1889, p. 298. 
228G. Riley, C. V., and Howard, L. O. Abundance of an lulus in 
Dakota. <Insect Life, v. 1, April, 1889, pp. 315-31G. 
Remedies for lulus virgatus. 
2287. Riley, C. V., and Howard, L. O. Grass cut worms. <Insect 
Life, y. 1, April, 1889, p. 317. 
2288. Riley, C. V., and Howard, L. O. A boll worm letter. <Iusect 
Life, v. 1, April, 1889, p. 320. 
Remedies for the Loll worm. 
2289. Riley, C. V., and Howard, L. O. New food-plant for the scurfy 
bark-louse. <Insect Life, v. 1, April, 1889, p. 324. 
Found on currant. 
2290. Riley, 0. V., and Howard, L. O. The Florida wax-scale in 
California. <Insect Life, v. 1, April, 1889, pp. 325-32G. 
Note on Ceroplastes floridensis. 
2291. Riley, C. V., and Howard, L. O. Trumpet creeper injured by 
Lygmis reclivatus. <Insect Life, v. 1, May, 1889, p. 340. 
2292. Riley, C. V., and Howard, L. O. Thrips tritici injuring orange 
blossoms. <lnsect Life, v. 1, May, 1889, p. 340. 
2293. Riley, 0. V., and Howard, L. O. White ants in Australia. 
<Insect Life, v. 1, May, 1889, pp. 340-341. 
Preventives and remedies. 
2294. Riley, C. V., and Howard, L. O. White grub injury to straw¬ 
berries. <Insect Life, v. 1, May, 1889, pp. 341-342. 
2295. Riley, C. V., and Howard, L. O. A Phytoptus on plum. <In- 
sect Life, v. 1, May, 1889, p. 343. 
An undetermined species causing galls on twigs. 
229G. Riley, C. V., and Howard, L. O. A lac insect on the creosote 
bush. <Insect Life, v. 1, May, 1889, pp. 344-345. 
Occurrence of Carteria larrew. 
2297. Riley, C. V., and Howard, L. O. A Rhizococcus on grass in 
Dakota. <Insect Life, v. 1, May, 1889, p. 345. 
2298. Riley, C. V., and Howard, L. O. Oscinus sp. on chrysanthe¬ 
mum. <Insect Life, v. 1, May, 1889, p. 34G. 
2299. Riley, C. V., and Howard, L. O. Ants destroying young maples 
in Nebraska. <Insect Life, v. 1, May, 1889, p. 346. 
2300. Riley, C. V., and Howard, L. O. The spider-bite question. 
<Insect Life, v. 1, May, 1889, pp. 347-349. 
2301. Riley, C. V., and Howard, L. O. Evaporated sulphur for red 
spider in greenhouses. < Insect Life, v. 1, May, 1889, p. 349. 
2302. Riley, C. V., and Howard, L. O. Double dowers caused by 
mites. <Insect Life, v. 1, May, 1889, pp. 349-350. 
