184 
BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
1418. Riley, C.Y. [On the peculiarities of Physianthusalbens.] <Trans. 
Acad. Sci. St, Louis, 6 April, 1875, v. 3, p. 109 Proc. 
Verbal communication; the flowers of Physianthus aliens so constructed as 
to hold large Spiling idee, fast by the tongue. 
1419. Riley, 0. Y. [On the capture of moths by Physianthus alhens.\ 
<Trans. Acad. Sci. St. Louis, 6 April, 1875, v. 3, p. 115 Proc. 
Reprinted, with changes, from <Moore’s Rural New Yorker, 
29 August, 1874, v. 30, p. 140. 
Verbal communication; method of capture of insects, particularly moths, 
by the flowers of Physianthus aliens ; records the capture of a number of 
Noctuidce and of Spiling idee, especially Deilephila lineata; Nerium oleander 
and CEkiothera grandiflora are said to capture Sphinx-moths in Europe. 
1420. Riley, C. Y. [On the Yucca borer.] <Trans. Acad. Sci. St. 
Louis, 6 April, 1875, v. 3, p. 139 Proc. 
Verbal communication; entomological interest attaching to the Yucca; 
abode and synonymy of Megathymus yuccw. 
1421. Riley, C. Y. [Yew biological'facts regarding the grape Phyllox¬ 
era.] <Trans. Acad. Sci. St. Louis, 6 April, 1875, v. 3, pp. 147- 
148 Proc. 
Sequence of development of certain forms of Phylloxera; sexual forms of 
three species of Phylloxera obtained ; alleged discovery by J. Lichtenstein 
of the winged form of P. vastatrix on Quercns coccifera in Europe, discred¬ 
ited, and this form considered by E. G. Balbiani as a new species, named 
P. lichtensteinii. 
1422. Riley, C. Y. [On the connection of locust invasions with the 
occurrence of drought.] <Trans. Acad. Sci. St. Louis, 6 April, 
1875, v. 3, p. 163 Proc. 
Verbal communication: no connection between the occurrence of drought 
and of locust invasions. 
1423. Riley, C. Y. Seventh annual report on the noxious, beneficial, 
and other insects of the State of Missouri, made to the State 
Board of Agriculture pursuant to an appropriation for this pur¬ 
pose from the legislature of the State. <10tli Ann. Rept. State 
Board of Agric. for 1874, April, 1875, pp. 7 + 196 + 4, 40 figs. 
Separate: <Jefferson City, Mo., April, 1875, pp. 7 + 196 + 4, 
40 figs. 
Preface . Ill 
Table of Contents. VII 
* 
NOXIOUS INSECTS. 
The Colorado Potato-beetle, Doryphora 10 -lineata . 1 
Its gradual spread eastwar 1, 1—It reached the Atlautic during the 
year 1874, 1—Injuries done during the year 1874, 2 —Alarm about 
it in Europe, 3—Prohibiting the importation of American pota¬ 
toes by European governments, 3—The insect probably intro¬ 
duced into Europe in the perfect form, 3—It would doubtless 
thrive in Europe if imported, 4—Its ravages exaggerated and 
underrated, 5—On the safety and advisability of the use of Paris 
green, 8—Past experience with the poison, 10—I ifluence of Paris 
green on the plant and on the soil, 11—Influence of the green on 
