148 
Journal of Agricultural Research 
Vol. XIV, No. 3 
Lepidoptera are attracted to light traps and that of the females so 
captured all have previously oviposited. 
Table IV .—Summary of foregoing records , compiled mainly from the literature , as 
to the relative proportions of male and female Lepidoptera 
Species. 
Number 
of males. 
Number 
of fe¬ 
males. 
Total. 
Per¬ 
cent¬ 
age of 
males. 
Per¬ 
cent¬ 
age of 
females. 
Euproctis chrysorrhoea Linnaeus. 
399 
451 
850 
47 
53 
Elasmopalptis lignosellus Zeller. 
23 
33 
41 
59 
Phthorimaea operculella Zeller. 
327 
284 
611 
S 3 - S 
46- s 
Crambus hortuellus Hubner. 
41 
I 9 
60 
68. 3 
31. 7 
Plutella maculipennis Curtis. 
26 
26 
S 2 
5 ° 
5 ° 
Carpocapsa pomonella Linnaeus. 
576 
7*3 
i, 289 
44 - 7 
55-3 
Hemileuca oliviae Cockerell. 
13,666 
10, 655 
24,321 
5 6 
44 
Sanninoidea opalescens Henry Edwards. 
118 
114 
232 
50-9 
49. 1 
Synanthedon pictipes Grote and Robinson. . . 
6 
11 
17 
35-3 
64. 7 
Archips argyrospila Walker. 
114 
117 
231 
49. 4 
50. 6 
Archips rosaceana Harris. 
35 
27 
62 
56.5 
43 - 5 
Halisidota caryae Harris. 
17 
8 
25 
68 
32 
Chloridea obsokta Fabricius. 
£20 
168 
288 
42 
58 
Porthetria dispar Linnaeus. 
55-6 
44.4 
LITERATURE CITED 
(1) Ainslie, C. N. 
1910. THE NEW MEXICO RANGE CATERPILLAR. U. S. Dept. Agr. Bur. Ent. 
Bui. 85, pt. V, p. 59^6, fig. 32-53, pi. 3-4. 
(2) Davidson, W. M. 
1913. ON the pupal instar of the fruit-tree leaf-roller (archips argy- 
rospila walker). In Jour. Econ. Ent., v. 6, no. 5, p. 396-403^1.9-10. 
(3) Fernald, C. H., and Kirkland, A. H. 
1903. the brown-tail moth euproctis chrysorrhoea (l.). A report on 
THE LIFE HISTORY AND HABITS OF THE IMPORTED BROWN-T^IL MOTH. 
73 p.,14 pi. Boston. 
(4) Graf, J. E. 
1917. THE POTATO TUBER MOTH. U. S. Dept. Agr. Bui. 427, 56 p., 45 fig., 
map. 
(5) Hammar, A. G. 
1912. LIFE-HISTORY STUDIES ON THE CODLING MOTH IN MICHIGAN. U. S. Dept. 
Agr. Bur. Ent. Bui. 115, pt. 1, p. 1-86, 22 fig., 3 pi. 
(6) Herrick, G. W., and Leiby, R. W. * 
1915. the fruit-tree leaf roller. N. Y. Cornell Agr. Exp. Sta. Bui. 367, 
p. 245-280, fig. 44-61. 
(7) Isely, Dwight. 
1918. orchard injury by the hickory tiger-moth. U. S. Dept. Agr. Bui. 
598,16 p., 3 pi. 
(8) King, J. L. 
1917. the LESSER peach Tree BORER. Ohio Agr. Exp. Sta. Bui. 307, p. 395- 
448, 21 fig. 
(9) Jones, P. R., and Davidson, W. M. 
1913. LIFE HISTORY OF THE CODLING MOTH IN THE SANTA CLARA VALLEY OF 
California. U. S. Dept. Agr. Bur. Ent. Bui. 115, pt. Ill, p. 113-181, 
eg. 27-39. 
