234 
BIBLIOGRAPHY OP ECONOMIC ENTOMOLOGY. 
1674. Riley, 0. V. The locust swarms that devastate the trans-Mis¬ 
sissippi country; their source, movements, and eastern limit. 
<Western Farmer’s Almanac for 1879, 1878, pp. 48-50, S.-b. 
No. 19, pp. 247-248. 
Limits of the breeding-grounds of and of regions invaded by Caloptenus spre- 
tus ; causes, periods, and directions of their flights; causes of the limita¬ 
tions of the same physical and principally atmospheric; amount of rav¬ 
ages. 
1675. [Riley, C. V.] Prof. Riley in favor of the birds. <Evening Star 
[Washington, D. C.], 9 January, 1879, v. 53, No. 8039, p. 3. 
S.-b. No. 19, pp. 223-224; No. 23, p. 94. 
From St. Louis [Mo.] Globe-Democrat. List of some birds which are bene¬ 
ficial to horticulture and some which are noxious. 
1676. Riley, C. Y. Letter from Prof. C. Y. Riley. <Colman’s Rural 
World, 15 January, 1879. S.-b. No. 23, pp. 107-108. 
Letter to N. J. Colman transmitting report as former treasurer of the Mis¬ 
souri State Horticultural Society; transmission of documents for distribu¬ 
tion; proposal for a revised and condensed edition of author’s reports as State 
entomologist of Missouri. 
1677. [Riley, C. Y.J Michigan apples and codling-moth. <N. Y. Tri¬ 
bune, 15 January, 1879. S.-b. No. 23, p. 109. 
Freedom of apples from Carpocapsapomonella in 1878 in Michigan due to the 
smallness of the apple crop in 1877 and to the efforts made by the orchard- 
ists to exterminate the insects. 
1678. Riley, C. Y. Notes on the Apliididce of the United States, with 
descriptions of species occurring west of the Mississippi. 
<Bull. U. S. Geol. and Geog. Surv. Terr., 28 February, 1879, 
v. 5, pp. 1-32, pi. 1-2, with 2 pp. expl. of pi. Separate: < Wash¬ 
ington, 22 January, 1879, 32 pp., 2 pi., with 2 pp. expl. of pi. 
Abstract: <Sci. News, 15 April, 1879, v. 1, pp. 184-186. 
Part 1, pp. 1-17, by C. V. Riley, entitled ‘‘Biological notes on the Pemplii- 
gince, with descriptions of new species; ” history and description of Schizo- 
neura americana n. sp. [p. 4], Colopha ulmicola, Pemphigus populi-monilis 
n. sp. [p. 13], P. populi-lransversus n. sp. [p. 15], P. p.-ramulorum n. sp. [p. 
16], P. acerifolii n. sp. [p. 16], P. fraxinifolii n. sp. [p. 17], and Hormaphis 
spinosus. 
Part 2, pp. 18-32, by J. Monell, entitled “ Notes on Aphidince, with descrip¬ 
tions of new species.” Describes nine (9) new species of Siphonophora, five 
(5) of Aphis, two (2) of Bhopalosiphum , nine (9) of Callipterus, three (3) of 
Chaitophorus ; description of other species of these genera and of Drepanosi- 
phum and the genera above named; synoptic tables of some of the species. 
1679. [Riley, C. Y.] . [Plant-lice on potatoes.] <N. Y. Tribune, 12 
February, 1879. S.-b. No. 23, p. 109. 
Aphididce reputed injurious to potato plants, probably Aphis solani. 
1680. Riley, C. Y. Missouri entomological reports. <Colman’s Rural 
World, 19 February, 1879. S.-b. No. 23, p. 102. 
Proposal for republication of the reports of the State entomologist of Mis¬ 
souri ; reasons for the non-publication of a tenth report; sketch of what 
that report would have contained. 
