212 
BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
1575. [Riley, C. V., et al.] U. S. Entomological Commission. Circular 
No. 1. [Riley, Packard, Thomas.] <Washiugton: 1877, 8°, 
4 pp. 
Queries regarding the migrations, appearances, habits, and ravages of Calop¬ 
tenus spretus; directions for making replies. 
1576. Riley, C. Y. U. S. Entomological Commission. Circular No. 2. 
<Washington : 1877, 8°, 4 pp. 
Plans of work ; request for information regarding the natural history, insect 
enemies, and iiarasites of Caloptenus spretus and other locusts; means 
against the same. 
1577. [Riley, C. V., et al.] Bulletin of the United States Entomologi¬ 
cal Commission. Destruction of the young or unfledged lo¬ 
custs. No. 1. [Riley,Packard,Thomas.] <Washington: 1877, 
8°, 12 pp. See: <Sci. Aruer., 2 June, 1877 [v. 50], n. s., v. 26, 
p. 344. 
Enumeration of means of destroying young or unfledged locusts; quotations 
of laws passed hy States of Missouri, Kansas, and Minnesota to provide for 
the destruction of locusts and their eggs. 
Supplement to Bulletin No. 1, 2 pp. Summary of means for the destruction 
of young locusts. 
1578. [Riley, C. V., et al.] Bulletin of the United States Entomologi¬ 
cal Commission. On the natural history of the Rocky Mount¬ 
ain locust, and on the habits of the young or unfledged in¬ 
sects as they occur in the more fertile country in which they 
will hatch the present year. No. 2. [Riley, Packard, Thomas.] 
<Washington: May, 1877, 8°, 15 pp., figs. 1-11, map. 
Description, oviposition, hatching, transformations, and habits of Caloptenus 
spretus ; map of the country that will suffer most severely, showing the 
eastern limit of injury the present year. 
1579. Riley, C. Y. The grape leaf-folder. <Journ. and Farmer, 14 
June, 1877. S.-b. No. 14, p. 133. 
Description of larva, imago, habits, ravages, distribution, seasons, and food- 
plants of Desmia maculalis. 
1580. Riley, C. V. The rascal leaf-crumpler. <Journ. and Farmer, 
14 June, 1877. S.-b. No. 14, pp. 133-134. 
Description of larva, larva-case, imago, habits, ravages of, distribution, sea¬ 
sons, food-plants, and means against Phycita nebulo [= Acrobasis indiginella'}. 
1581. Riley, C. Y. The Hessian-fly. <Journ. and Farmer, 14 June, 
1877. S.-b. No. 14, p. 135. 
Description of eggs, larva, puparium, and imago of Cecidomyia destructor; 
civil history, seasons, habits, ravages of and means against it; .habits of 
Semiotellus \_—Merisus~\ destructor. 
1582. Riley, C. V. Locust prospects. <Sci. Arner., 16 June, 1877, 
[v. 50], n. s., v. 36, p. 369. 
Causes of the destruction of a great proportion of the young of Caloptenus 
spretus; a general and disastrous invasion improbable for some years. 
1583. [Riley, C. Y.] Insect enemies. <N. Y. Tribune, 16 June, 1877. 
S.-b. No. 14, pp. 234-235. 
1. Apple-borers; answer to letter of Y. B. P.; young apple-trees killed by 
Xyleborm obesus. 
