32 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
400. Coquillett, D. W. .Report on locust invasion of California in 
1891. <Bull. No. 27, Div. Ent. U. S. Dept. Agric., 1892, pp. 
34-57. 
Tells of damage by Melanoplm devastator, and gives remedies. 
401. Coquillett, D. W. Notes on the habits of some California 
Coleoptera. <Insect Life, v. 4, March, 1892, pp. 260-262. 
Food-habits of several species, including Hydnocera scabra, Amphicerus 
punctipennis, I'soa maculata, Lyctus striatus, and Ipoclxus fasciatus. 
402. Coquillett, 1). W. Our newly imported bugs. <California 
Fruit Grower, 23 January, 1892. 
Corrects some erroneous statements. 
403 0 Coquillett, D.W. [A oewfumigator for scale-insects.] <Insect 
Life, v. 4, June, 1892, pp. 328-329. 
401. Coquillett, D. W. The dipterous parasite of Melanoplus devas¬ 
tator in California. <Insect Life, v. 5, September, 1892, pp. 
22-24. 
Description of Sarcophaga opifera, and notes on the habits of the species. 
405. Coquillett, D. W. Report on some of the beneficial and injuri¬ 
ous insects of California. <Bull. No. 30, Div. Ent. II. S. Dept. 
Agric., 1893, pp. 9-33. 
Treats of the imported Australian ladybirds, the walnut span-worm, and 
Carpocapsa pomonedla. 
406. Coquillett, D. W. Report on the Australian insects sent by 
Albert Ivoebele to Ellwood Cooper and B. M. Lelong. <Insect 
Life, v. 5, April, 1893, pp. 251-254. 
407. Coquillett, D. W. That new Australian lady-bird. <Pacific 
Rural Press, 5 August, 1893. 
A brief account of Orcus chalybeus, introduced from Australia. 
408. Coquillett, D. W. Those blessed bugs again. <Pacific Rural 
Press, 30 September, 1893. 
Corrects certain published statements relating to the ladybirds imported 
from Australia. 
409. Coquillett, D. W. [The present status of the recent Austra¬ 
lian importations.] <Insect Life, v. 6, November, 1893, pp. 
24-26. 
410. Coquillett, D. W. Hydrocyanic acid gas as an insecticide. 
<Insect Life, v. 6, December, 1893, pp. 176-180. 
411. Coquillett, D. W. Report on some of the injurious insects of 
California. <Bull. No. 32, Div. Ent. U. S. Dept. Agric., 1894, 
pp. 22-31. 
Treats of Boarmiaplumogeraria, Prochccrodes mibilata, Tortrix citrana, Twnio- 
campa rufula, tent-caterpillars, and notes on arseniureted and sulplmreted 
hydrogen as insecticides. 
412. Coquillett, D. W. The San Jose scale in Virginia. <Insect 
Life, v. 6, February, 1894, pp. 253-254. 
