22 
The Bulletin 
pupal cells over winter, not becoming active until the following spring. 
There is some evidence to show that the early maturing adults lay eggs 
the same summer that they reach maturity, these eggs hatching and 
reaching maturity late in the season. 
THE EGG DESCRIPTION 
The egg is subreniform-elliptical in shape, almost pure white in color, 
and almost perfectly smooth (Fig. 15). As the egg grows older it be¬ 
comes more yellowish. Its size varies greatly, as is indicated by the 
following table, which shows the lengths and greatest diameters of 51 
eggs selected at random throughout the egg-laying season. The meas¬ 
urements w T ere taken by means of a binocular microscope fitted with 
micrometer eyepiece calibrated to 0.0416 m.m. Inasmuch as these eggs 
were selected at random throughout the season, they probably represent 
fairly average conditions for North Carolina. No constant differences 
between the sizes of eggs taken early in the season and those taken later 
in the season can be detected from the measurements. 
MEASUREMENTS OF 51 EGGS OF THE SOUTHERN CORN BILL BUG—MEASUREMENTS 
TAKEN AT VARIOUS TIMES THROUGHOUT THE SEASON. 
Table I. 
Egg Number 
Total Length, Measured 
as a Straight Line 
Greatest Diameter 
1 
2.08 mm. 
.95 mm. 
2 
2.91 mm. 
1.03 mm. 
3 
2.08 mm. 
1.03 mm. 
4 
2.36 mm. 
1.03 mm. 
5 
2.95 mm. 
.91 mm. 
6 
2.91 mm. 
.91 mm. 
7 
2.50 mm. 
.95 mm. 
8 
2 .41 mm. 
.95 mm. 
9 
2.33 mm. 
1.03 mm. 
10 
2.54 mm. 
.91 mm. 
11 
2.37 mm. 
.86 mm. 
12 
2.50 mm. 
.86 mm. 
13 
2.08 mm. 
.95 mm. 
14 
2.28 mm. 
.83 mm. 
15 
2.33 mm. 
.83 mm. 
16 
2.45 'mm. 
.86 mm. 
17 
2.28 mm. 
.86 mm. 
18 
2.95 mm. 
.86 mm. 
19 
2.28 mm. 
.91 mm. 
20 
2.24 mm. 
.86 mm. 
21 
2.37 mm. 
.99 mm. 
22 
2.50 mm. 
.95 mm. 
23 
2.50 mm. 
.99 mm. 
24 
2.24 mm. 
.91 mm. 
25 
1.95 mm. 
.98 mm. 
26 
2.41 mm. 
.98 mm. 
27 
2.17 mm. 
.70 mm. 
28 
2.46 mm. 
.96 mm. 
29 
2.02 mm. 
.88 mm. 
