BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 163 
2491. Riley, C. V., and Hoavard, L. O. A winter wash for scale 
insects. < Insect Life, v. 3, April, 1891, p. 347. 
2492. Riley, O. V., and Howard, L. O. Lady birds versus scale- 
insects. <Insect Life, v. 3, April, 1891, p. 347. 
2493. Riley, 0. V., and Howard, L. O. Injury of the hop crop on 
the Pacific slope. <Insect Life, v. 3, April, 1891, p. 349. 
2494. Riley, C. V., and Howard, L. O. The hop louse in Oregon. 
< Insect Life, v. 3, April, 1891, p. 350. 
2495. Riley, O. V., and Howard, L. O. Insect wax. <Insect Life, 
v. 3, April, 1891, p. 352. 
Notes on wax from an insect of Natal, from Iceryapurchasi, and from Lachnus 
longistigma. 
2496. Riley, C. V., and Howard, L. O. Australian fruit-growers and 
vine-groAvers in convention. <Insect Life, v. 3, April, 1891, 
pp. 352-353. 
2497. Riley, 0. V., and Hoavard, L. O. Winter protection for the 
Yedalia. < Insect Life, v. 3, April, 1891, p. 354. 
2498. Riley, 0. V., and Hoavard, L. O. The Australian “Fly-Bug.” 
<Insect Life, v. 3, April, 1891, p. 355. 
Determined to be Nysius vinitor. 
2499. Riley, C. V., and Hoavard, L. O. Paris green in England. 
<Insect Life, v. 3, June, 1891, p. 363. 
2500. Riley, C. V., and Howard, L. O. Efforts to stamp out the 
gypsy moth. <Insect Life, v. 3, June, 1891, pp. 364-365. 
2501. Riley, 0. V., and Howard, L. O. The quicksilver remedy for 
Phylloxera. < Insect Life, v. 3, June, 1891, pp. 391-392. 
2502. Riley, C. V., and Howard, L. O. A codling moth larva in 
March. <Insect Life, v. 3, June, 1891, p. 396. 
2503. Riley, C. V., and Howard, L. O. Economic value of the study 
of insects. <Insect Life, v. 3, June, 1891, pp. 397-398. 
2504. Riley, C. V., and Howard, L. O. The long scale and the wax 
scale. < Insect Life, v. 3, June, 1891, p. 398. 
Notes on Mytilaspis gloveri and Ceroplastea Jloridensis. 
2505. Riley, C. V., and Howard, L. O. A case of stomach bots in 
hogs. < Insect Life, v. 3, June, 1891, p. 101. 
2506. Riley, G. V., and Howard, L. O. Fertilization of red clover by 
bumble bees. <Insect Life, v. 3, June, 1891, p. 402. 
2507. Riley, G. V., and Howard, L. O. Nezara again injuring plants. 
<Insect Life, v. 3, June, 1891, p. 403. 
Notes on Nezara hilar is. 
2508. Riley, O. V., and Howard, L. O. Museum pests. <Insect Life, 
v. 3, June, 1891, p. 405. 
Notes on Anthrenus varius and A. scrophulariw. 
